U.S. patent application number 11/314869 was filed with the patent office on 2006-11-09 for lactobacillus rhamnosus polynucleotides, polypeptides and methods for using them.
This patent application is currently assigned to Fonterra Co-operative Group Limited. Invention is credited to Leonard N. Bloksberg, Anna C. Christensson, Timothy Coolbear, James Dekker, Matthew Glenn, Ilkka J. Havukkala, Ross Holland, Mark W. Lubbers, Paul W. O'Toole, Julian R. Reid.
Application Number | 20060251635 11/314869 |
Document ID | / |
Family ID | 27092103 |
Filed Date | 2006-11-09 |
United States Patent
Application |
20060251635 |
Kind Code |
A1 |
Glenn; Matthew ; et
al. |
November 9, 2006 |
Lactobacillus rhamnosus polynucleotides, polypeptides and methods
for using them
Abstract
Novel polynucleotides isolated from Lactobacillus rhamnosus, as
well as probes and primers, genetic constructs comprising the
polynucleotides, biological materials, including plants,
microorganisms and multicellular organisms incorporating the
polynucleotides, polypeptides expressed by the polynucleotides, and
methods for using the polynucleotides and polypeptides are
disclosed.
Inventors: |
Glenn; Matthew; (Palmerston
North, NZ) ; Havukkala; Ilkka J.; (Auckland, NZ)
; Bloksberg; Leonard N.; (Auckland, NZ) ; Lubbers;
Mark W.; (Palmerston North, NZ) ; Dekker; James;
(Palmerston North, NZ) ; Christensson; Anna C.;
(Lund, SE) ; Holland; Ross; (Palmerston North,
NZ) ; O'Toole; Paul W.; (Palmerston North, NZ)
; Reid; Julian R.; (Palmerston North, NZ) ;
Coolbear; Timothy; (Palmerston North, NZ) |
Correspondence
Address: |
SPECKMAN LAW GROUP PLLC
1201 THIRD AVENUE, SUITE 330
SEATTLE
WA
98101
US
|
Assignee: |
Fonterra Co-operative Group
Limited
Auckland
NZ
|
Family ID: |
27092103 |
Appl. No.: |
11/314869 |
Filed: |
December 20, 2005 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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09971536 |
Oct 2, 2001 |
7052896 |
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11314869 |
Dec 20, 2005 |
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09634238 |
Aug 8, 2000 |
6544772 |
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09971536 |
Oct 2, 2001 |
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09724623 |
Nov 28, 2000 |
6476209 |
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09971536 |
Oct 2, 2001 |
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Current U.S.
Class: |
424/93.45 ;
424/439; 435/252.3; 435/471; 435/69.1; 530/350; 536/23.7 |
Current CPC
Class: |
A61P 1/10 20180101; A61P
1/16 20180101; A61P 37/00 20180101; A23C 19/0323 20130101; A61P
43/00 20180101; C07K 2319/00 20130101; A61P 37/02 20180101; A23C
2220/202 20130101; A61K 38/00 20130101; A61K 39/00 20130101; A61P
37/08 20180101; A61P 25/28 20180101; A61P 1/12 20180101; A61P 1/04
20180101; A61P 39/02 20180101; C12N 9/00 20130101; A61K 2039/52
20130101; A61P 31/04 20180101; A61P 35/00 20180101; A61K 2039/53
20130101; C07K 14/335 20130101 |
Class at
Publication: |
424/093.45 ;
424/439; 435/252.3; 435/471; 435/069.1; 530/350; 536/023.7 |
International
Class: |
A61K 35/74 20060101
A61K035/74; C07H 21/04 20060101 C07H021/04; C12P 21/06 20060101
C12P021/06; C12N 1/20 20060101 C12N001/20; C12N 15/74 20060101
C12N015/74; C07K 14/335 20060101 C07K014/335 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 8, 2001 |
WO |
PCT/NZ01/00160 |
Claims
1. An isolated polynucleotide comprising a sequence selected from
the group consisting of: SEQ ID NO: 1-33.
2. An isolated polynucleotide comprising a sequence selected from
the group consisting of: (a) complements of SEQ ID NO: 1-33; (b)
reverse complements of SEQ ID NO: 1-33; and (c) reverse sequences
of SEQ ID NO: 1-33.
3. An isolated polynucleotide comprising a sequence selected from
the group consisting of: (a) sequences having at least 75%,
identity to a sequence of SEQ ID NO: 1-33; (b) sequences having at
least 90% identity to a sequence of SEQ ID NO: 1-33; and (c)
sequences having at least 95% identity to a sequence of SEQ ID NO:
1-33, wherein the polynucleotide encodes a polypeptide having
substantially the same functional properties as a polypeptide
encoded by SEQ ID NO: 1-33.
4. An isolated polynucleotide comprising a sequence selected from
the group consisting of: (a) nucleotide sequences that are 200-mers
of a sequence recited in SEQ ID NO: 1-33; (b) nucleotide sequences
that are 100-mers of a sequence recited in SEQ ID NO: 1-33; (c)
nucleotide sequences that are 40-mers of a sequence recited in SEQ
ID NO: 1-33; and (d) nucleotide sequences that are 20-mers of a
sequence recited in SEQ ID NO: 1-33;
5. An isolated oligonucleotide probe or primer comprising at least
10 contiguous residues complementary to 10 contiguous residues of a
nucleotide sequence recited in any one of claims 1-3.
6. A kit comprising a plurality of oligonucleotide probes or
primers of claim 5.
7. A genetic construct comprising a polynucleotide of any one of
claims 1-3.
8. A transgenic host cell comprising a genetic construct according
to claim 7.
9. A transgenic non-human organism comprising a transgenic host
cell of claim 8.
10. The transgenic organism of claim 9, wherein the organism is
selected from the group consisting of Lactobacillus species.
11. An isolated polynucleotide comprising a nucleotide sequence
that differs from a nucleotide sequence recited in SEQ ID NO: 1-33
as a result of deletions and/or insertions totalling less than 15%
of the total sequence length.
12. The isolated polynucleotide of claim 11, wherein the nucleotide
sequence differs from a nucleotide sequence recited in SEQ ID NO:
1-33 as a result of substitutions, insertions, and/or deletions
totalling less than 10% of the total sequence length.
13. A genetic construct comprising, in the 5'-3' direction: (a) a
gene promoter sequence; and (b) a polynucleotide sequence
comprising at least one of the following: (1) a polynucleotide
coding for at least a functional portion of a polypeptide of SEQ ID
NO: 42-75; and (2) a polynucleotide comprising a non-coding region
of a polynucleotide of any one of claims 1-3.
14. The genetic construct of claim 13, wherein the polynucleotide
is in a sense orientation.
15. The genetic construct of claim 13, wherein the polynucleotide
is in an anti-sense orientation.
16. The genetic construct of claim 13, wherein the gene promoter
sequence is functional in a prokaryote or eukaryote.
17. A transgenic host cell comprising a construct of claim 13.
18. A transgenic organism comprising a transgenic host cell
according to claim 17, or progeny thereof.
19. The transgenic organism of claim 18, wherein the organism is
selected from the group consisting of Lactobacillus species.
20. A method for modulating the activity of a polypeptide in an
organism, comprising stably incorporating into the genome of the
organism a polynucleotide of any one of claims 1-3.
21. The method of claim 20, wherein the organism is a microbe.
22. An isolated polypeptide comprising an amino acid sequence
selected from the group consisting of: SEQ ID NO: 42-75.
23. An isolated polypeptide comprising an amino acid sequence
selected from the group consisting of: (a) sequences having at
least 75% identity to a sequence of SEQ ID NO: 42-75; (b) sequences
having at least 90% identity to a sequence of SEQ ID NO: 42-75; and
(c) sequences having at least 95% identity to a sequence of SEQ ID
NO: 42-75, wherein the polypeptide has substantially the same
functional properties as a polypeptide of SEQ ID NO: 42-75.
24. An isolated polypeptide encoded by a polynucleotide of any one
of claims 1-3.
25. An isolated polynucleotide that encodes a polypeptide of any
one of claims 22 and 23.
26. A fusion protein comprising at least one polypeptide according
to any one of claims 22 and 23.
27. A composition comprising a polypeptide according to any one of
claims 22 and 23 and at least one component selected from the group
consisting of: physiologically acceptable carriers and
immunostimulants.
28. A composition comprising a polynucleotide according to any one
of claims 1-3 and at least one component selected from the group
consisting of: physiologically acceptable carriers and
immunostimulants.
29. A method for treating a disorder in a mammal, comprising
administering a composition according to claim 27.
30. A method for treating a disorder in a mammal, comprising
administering a composition according to claim 28.
31. A method for modifying a property of a microbe, comprising
modulating the polynucleotide content or composition of the microbe
by transforming the microbe with a polynucleotide of any one of
claims 1-3.
32. The method of claim 31, wherein the microbe is used in the
manufacture of a milk-derived product, food product, food additive,
nutritional supplement, bioactive substance or probiotic
supplement.
33. A method for modifying at least one property of a product,
food, food additive, nutritional supplement or probiotic
supplement, wherein the product, food, food additive, nutritional
supplement or probiotic supplement is prepared from milk, the
method comprising adding a polypeptide of any one of claims 22-24
to the milk.
34. The method of claim 33, wherein the property is selected from
the group consisting of: flavor; aroma; texture; nutritional
benefits; immune system modulation; and health benefits.
35. A food product comprising an isolated polypeptide of any one of
claims 22 and 23.
36. The food product of claim 35, wherein the food product is
derived from milk.
37. The food product of claim 36, wherein the food product is
selected from the group consisting of: cheese; and yoghurt.
38. The food product of claim 35, wherein the food product has at
least one modified property selected from the group consisting of:
flavor; aroma; texture; nutritional benefits; immune system
modulation; and health benefits.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a continuation of U.S. patent
application Ser. No. 09/971,536, filed Oct. 2, 2001, which is a
continuation-in-part of U.S. patent application Ser. No. 09/634,238
filed Aug. 8, 2000, now U.S. Pat. No. 6,544,772 and U.S. patent
application Ser. No. 09/724,623, now U.S. Pat. No. 6,476,209, filed
Nov. 28, 2000, and claims priority to PCT International Application
No. PCT/NZ01/00160 filed Aug. 8, 2001.
REFERENCE TO SEQUENCE LISTING SUBMITTED ON COMPACT DISC
[0002] This application incorporates by reference in its entirety
the Sequence Listing contained in the accompanying two compact
discs, one of which is a duplicate copy. Each CD contains a single
file, named "1043c4 SEQLIST.txt," the size of which is 196 KB, and
which was created on Dec. 20, 2005, in IBM-PC MS-Windows 2000
format pursuant to 37 CFR .sctn.1.52 (e).
TECHNICAL FIELD OF THE INVENTION
[0003] This invention relates to polynucleotides isolated from
lactic acid bacteria, namely Lactobacillus rhamnosus, as well as
probes and primers specific to the polynucleotides, genetic
constructs comprising the polynucleotides, biological materials,
including microorganisms and multicellular organisms, incorporating
the polynucleotides, polypeptides encoded by the polynucleotides,
and methods for using the polynucleotides and polypeptides.
BACKGROUND OF THE INVENTION
[0004] The present invention relates to polynucleotides and
polypeptides isolated from a specific strain of lactic acid
bacteria, namely Lactobacillus rhamnosus HN001 (L. rhamnosus
HN001). Lactic acid bacteria and their enzymes are the major
determinants of flavor and fermentation characteristics in
fermented dairy products, such as cheese and yogurt. Flavors are
produced through the action of bacteria and their enzymes on
proteins, carbohydrates and lipids.
[0005] Lactobacillus rhamnosus strain HN001 are heterofermentative
bacteria that are Gram positive, non-motile, non-spore forming,
catalase negative, facultative anaerobic rods exhibiting an optimal
growth temperature of 37.+-.1.degree. C. and an optimum pH of
6.0-6.5. Experimental studies demonstrated that dietary
supplementation with Lactobacillus rhamnosus strain HN001 induced a
sustained enhancement in several aspects of both natural and
acquired immunity (See PCT International Publication No. WO
99/10476).
[0006] In addition, L. rhamnosus HN001 and certain other
Gram-positive bacteria can specifically and directly modulate human
and animal health (See, for example, Tannock et al., Applied
Environ. Microbiol. 66:2578-2588, 2000; Gill et al., Brit. J
Nutrition 83:167-176; Quan Shu et al., Food and Chem. Toxicol.
38:153-161, 2000; Quan Shu et al., Intl. J Food Microbiol.
56:87-96, 2000; Quan Shu et al., Intl. Dairy J. 9:831-836, 1999;
Prasad et al., Intl. Dairy J. 8:993-1002, 1998; Sanders and Huis
in't Veld, Antonie van Leeuwenhoek 76:293-315, 1999; Salminen et
al., 1998. In: Lactic Acid Bacteria, Salminen S and von Wright A
(eds)., Marcel Dekker Inc, New York, Basel, Hong Kong, pp. 203-253;
Delcour et al., Antonie van Leeuwenhoek 76:159-184, 1999; Blum et
al., Antonie van Leeuwenhoek 76:199-205, 1999; Yasui et al.,
Antonie van Leeuwenhoek 76:383-389, 1999; Hirayama and Rafter,
Antonie van Leeuwenhoek 76:391-394, 1999; Ouwehand, 1998. In:
Lactic Acid Bacteria, Salminen S and von Wright A (eds)., Marcel
Dekker Inc, New York, Basel, Hong Kong, pp. 139-159; Isolauri et
al., S 1998. In: Lactic Acid Bacteria, Salminen S and von Wright A
(eds)., Marcel Dekker Inc, New York, Basel, Hong Kong, pp. 255-268;
Lichtenstein and Goldin, 1998. In: Lactic Acid Bacteria, Salminen S
and von Wright A (eds)., Marcel Dekker Inc, New York, Basel, Hong
Kong, pp. 269-277; El-Nezami and Ahokas, 1998. In: Lactic Acid
Bacteria, Salminen S and von Wright A (eds)., Marcel Dekker Inc,
New York, Basel, Hong Kong, pp. 359-367; Nousianen et al., 1998.
In: Lactic Acid Bacteria, Salminen S and von Wright A (eds).,
Marcel Dekker Inc, New York, Basel, Hong Kong, pp. 437-473; Meisel
and Bockelmann, Antonie van Leeuwenhoek 76:207-215, 1999;
Christensen et al., Antonie van Leeuwenhoek 76:217-246, 1999; Dunne
et al., Antonie van Leeuwenhoek 76:279-292, 1999).
[0007] Beneficial health effects attributed to dietary
supplementation with these bacteria include the following:
[0008] Increased resistance to enteric pathogens and anti-infection
activity, including treatment of rotavirus infection and infantile
diarrhea--due to increases in antibody production caused by an
adjuvant effect; increased resistance to pathogen colonization;
alteration of intestinal conditions, such as pH; and the presence
of specific antibacterial substances, such as bacteriocins and
organic acids.
[0009] Aid in lactose digestion--due to lactose degradation by
bacterial lactase enzymes (such as beta-galactosidase) that act in
the small intestine.
[0010] Anti-cancer (in particular anti-colon cancer) and
anti-mutagenesis activities--due to anti-mutagenic activity;
alteration of procancerous enzymatic activity of colonic microbes;
reduction of the carcinogenic enzymes azoreductase,
beta-glucuronidase and nitroreductase in the gut and/or faeces;
stimulation of immune function; positive influence on bile salt
concentration; and antioxidant effects.
[0011] Liver cancer reduction--due to aflatoxin detoxification and
inhibition of mould growth.
[0012] Reduction of small bowel bacterial overgrowth--due to
antibacterial activity; and decrease in toxic metabolite production
from overgrowth flora.
[0013] Immune system modulation and treatment of autoimmune
disorders and allergies--due to enhancement of non-specific and
antigen-specific defence against infection and tumors; enhanced
mucosal immunity; adjuvant effect in antigen-specific immune
responses; and regulation of Th1/Th2 cells and production of
cytokines.
[0014] Treatment of allergic responses to foods--due to prevention
of antigen translocation into blood stream and modulation of
allergenic factors in food.
[0015] Reduction of blood lipids and prevention of heart
disease--due to assimilation of cholesterol by bacteria; hydrolysis
of bile salts; and antioxidative effects.
[0016] Antihypertensive effect--bacterial protease or peptidase
action on milk peptides produces antihypertensive peptides. Cell
wall components act as ACE inhibitors.
[0017] Prevention and treatment of urogenital infections--due to
adhesion to urinary and vaginal tract cells resulting in
competitive exclusion; and production of antibacterial substances
(acids, hydrogen peroxide and biosurfactants).
[0018] Treatment of inflammatory bowel disorder and irritable bowel
syndrome--due to immuno-modulation; increased resistance to
pathogen colonization; alteration of intestinal conditions such as
pH; production of specific antibacterial substances such as
bacteriocins, organic acids, hydrogen peroxide and biosurfactants;
and competitive exclusion.
[0019] Modulation of infective endocarditis--due to fibronectin
receptor-mediated platelet aggregation associated with
Lactobacillus sepsis.
[0020] Prevention and treatment of Helicobacter pylori
infection--due to competitive colonization and antibacterial
effect.
[0021] Prevention and treatment of hepatic encephalopathy--due to
inhibition and/or exclusion of urease-producing gut flora.
[0022] Improved protein and carbohydrate utilization and
conversion--due to production of beneficial products by bacterial
action on proteins and carbohydrates.
[0023] Other beneficial health effects associated with dietary
supplementation with L. rhamnosus include: improved nutrition;
regulation of colonocyte proliferation and differentiation;
improved lignan and isoflavone metabolism; reduced mucosal
permeability; detoxification of carcinogens and other harmful
compounds; relief of constipation and diarrhea; and vitamin
synthesis, in particular folate.
[0024] Peptidases are enzymes that break the peptide bonds linking
the amino group of one amino acid with the carboxy group (acid
group) of an adjacent amino acid in a peptide chain. The bonds are
broken in a hydrolytic reaction. There is a large family of
peptidase enzymes that are defined by their specificity for the
particular peptide bonds that they cleave (Barrett A J, Rawlings N
D and Woessner J F (Eds.) 1998. Handbook of proteolytic enzymes,
Academic Press, London, UK). The two main families are
exopeptidases and endopeptidases.
[0025] Exopeptidases cleave amino acids from the N- or C-terminus
of a peptide chain, releasing free amino acids or short (di- and
tri-) peptides. Different types of exopeptidases include: [0026]
Aminopeptidases--release a free amino acid from the N-terminus of a
peptide chain; [0027] dipeptidyl-peptidase (also known as
dipeptidyl-aminopeptidases)--release a dipeptide from the
N-terminus of a peptide chain; [0028] tripeptidyl-peptidases (also
known as tripeptidyl-aminopeptidases)--release a tripeptide from
the N-terminus of a peptide chain); [0029]
carboxypeptidases--release a free amino acid from the C-terminus of
a peptide chain; [0030] peptidyl-dipeptidases--release a dipeptide
from the C-terminus of a peptide chain; [0031]
dipeptidases--release two free amino acids from a dipeptide; and
[0032] tripeptidases--release a free amino acid and a dipeptide
from a tripeptide.
[0033] Endopeptidases hydrolyze peptide bonds internally within a
peptide and are classified on the basis of their mode of catalysis:
[0034] serine-endopeptidases--depend on serine (or threonine) as
the nucleophile in the catalytic reaction; [0035]
cysteine-endopeptidases--depend on the sulphydryl group of cysteine
as the nucleophile in the catalytic reaction; [0036]
aspartic-endopeptidases--contain aspartate residues that act as
ligands for an activated water molecule which acts as the
nucleophile in the catalytic reaction; and [0037]
metallo-endopeptidases--contain one or more divalent metal ions
that activate the water molecule that acts as the nucleophile in
the catalytic reaction.
[0038] Peptidases are important enzymes in the process of cheese
ripening and the development of cheese flavor. The hydrolysis of
milk caseins in cheese results in textural changes and the
development of cheese flavors. The raft of proteolytic enzymes that
cause this hydrolysis come from the lactic acid bacteria that are
bound up in the cheese--either starter cultures that grow up during
the manufacture of the cheese, or adventitious and adjunct
non-starter lactic acid bacteria that grow in the cheese as it
ripens (Law and Haandrikman, Int. Dairy J. 7:1-11, 1997).
[0039] Many other enzymes can also influence dairy product flavor
and functional and textural characteristics, as well as influencing
the fermentation characteristics of the bacteria, such as speed of
growth, acid production and survival. (Urbach, Int. Dairy J
5:877-890, 1995; Johnson and Somkuti, Biotech. Appl. Biochem.
13:196-204, 1991; El Soda and Pandian, J. Dairy Sci. 74:2317-2335,
1991; Fox et al., In Cheese: chemistry, physics and microbiology.
Volume 1, General aspects, 2.sup.nd edition, P Fox (ed) Chapman and
Hall, London; Christensen et al., Antonie van Leeuwenhoek
76:217-246, 1999; Stingle et al., J. Bacteriol. 20:6354-6360, 1999;
Stingle et al., Mol. Microbiol. 32:1287-1295, 1999; Lemoine et al.,
Appl. Environ. Microbiol. 63:1512-3518, 1997). Enzymes influencing
the specific cellular and system characteristics and/or functions
are examplified below: [0040] Lysis of cells. These enzymes are
mostly cell wall hydrolases, including amidases; muramidases;
lysozymes, including N-acetyl muramidase; muramidase;
N-acetylglucosaminidase; and N-acetylmuramoyl-L-alanine amidase.
DEAD-box helicase proteins also influence autolysis. [0041]
Carbohydrate utilization. Lactose, citrate and diacetyl metabolism,
and alcohol metabolism are particularly important. The enzymes
involved include beta-galactosidase, lactate dehydrogenase, citrate
lyase, citrate permease, 2,3 butanediol dehydrogenase (acetoin
reductase), acetolactate decaboxylase, acetolactate synthase,
pyruvate decarboxylase, pyruvate formate lyase, diacetyl synthase,
diacetyl reductase, alcohol decarboxylase, lactate dehydrogenase,
pyruvate dehydrogenase, and aldehyde dehydrogenase. [0042] Lipid
degradation, modification or synthesis. Enzymes involved include
lipases, esterases, phospholipases, serine hydrolases, desaturases,
and linoleate isomerase. [0043] Polysaccharide synthesis.
Polysaccharides are important not only for potential immune
enhancement and adhesion activity but are important for the texture
of fermented dairy products. The enzymes involved are a series of
glucosyl transferases, including beta-(1-3) glucosyl transferase,
alpha-N acetylgalactosaminyl transferase, phosphogalactosyl
transferase, alpha-glycosyl transferase, UDP-N-acetylglucosamine C4
epimerase and UDP-N-acetylglucosamine transferase. [0044] Amino
acid degradation. Enzymes include glutamate dehydrogenase,
aminotransferases, amino acid decarboxylases, and enzymes involved
in sulphur amino acid degradation including cystothione
beta-lyase.
[0045] Sequencing of the genomes of numerous organisms, including
humans, animals, microorganisms and various plant varieties, has
been and is being carried out on a large scale. Polynucleotides
identified using sequencing techniques may be partial or
full-length genes, and may contain open reading frames, or portions
of open reading frames, that encode polypeptides. Polypeptides may
be identified based on polynucleotide sequences and further
characterized. The sequencing data relating to polynucleotides thus
represents valuable and useful information.
[0046] Polynucleotides and polypeptides may be analyzed for varying
degrees of novelty by comparing identified sequences to sequences
published in various public domain databases, such as EMBL. Newly
identified polynucleotides and corresponding polypeptides may also
be compared to polynucleotides and polypeptides contained in public
domain information to ascertain homology to known polynucleotides
and polypeptides. In this way, the degree of similarity, identity
or homology of polynucleotides and polypeptides having an unknown
function may be determined relative to polynucleotides and
polypeptides having known functions.
[0047] Information relating to the sequences of isolated
polynucleotides may be used in a variety of ways. Specified
polynucleotides having a particular sequence may be isolated, or
synthesized, for use in in vivo or in vitro experimentation as
probes or primers. Alternatively, collections of sequences of
isolated polynucleotides may be stored using magnetic or optical
storage medium and analyzed or manipulated using computer hardware
and software, as well as other types of tools.
SUMMARY OF THE INVENTION
[0048] The present invention provides isolated polynucleotides
comprising a sequence selected from the group consisting of: (a)
SEQ ID NO: 1-33; (b) complements, reverse sequences and reverse
complements of SEQ ID NO: 1-33 and fragments of SEQ ID NO: 1-33;
(c) open reading frames contained in SEQ ID NO: 1-33 and their
variants; (d) functional domains contained in SEQ ID NO: 1-33; and
(e) sequences comprising at least a specified number of contiguous
residues of a sequence of SEQ ID NO: 1-33 (x-mers). Oligonucleotide
probes and primers corresponding to the sequences set out in SEQ ID
NO: 1-33, and their variants are also provided. All of these
polynucleotides and oligonucleotide probes and primers are
collectively referred to herein, as "polynucleotides of the present
invention." RNA sequences, reverse sequences, complementary
sequences, antisense sequences and the like, corresponding to the
polynucleotides of the present invention, may be routinely
ascertained and obtained using the polynucleotides identified as
SEQ ID NO: 1-33 and are included in the term "polynucleotide."
[0049] The polynucleotide sequences identified as SEQ ID NO: 1-33
were derived from a microbial source, namely from fragmented
genomic DNA of Lactobacillus rhamnosus strain HN001, described in
PCT International Publication No. WO 99/10476. A biologically pure
culture of Lactobacillus rhamnosus strain HN001 was deposited at
the Australian Government Analytical Laboratories (AGAL), The New
South Wales Regional Laboratory, 1 Suakin Street, Pymble, NSW 2073,
Australia, as Deposit No. NM97/09514, dated 18 Aug. 1997.
[0050] The polynucleotide sequences disclosed herein are primarily
"full-length" sequences, in that they represent a full-length gene
encoding a full-length polypeptide and contain an open reading
frame.
[0051] The present invention further provides isolated
polypeptides, including polypeptides encoded by the polynucleotides
disclosed herein. In certain specific embodiments, the polypeptides
of the present invention comprise a sequence selected from the
group consisting of SEQ ID NO: 42-75, and variants thereof.
Polypeptides encoded by the polynucleotides of the present
invention may be expressed and used in various assays to determine
their biological activity. Such polypeptides may be used to raise
antibodies, to isolate corresponding interacting proteins or other
compounds, and to quantitatively determine levels of interacting
proteins or other compounds. The polypeptides of the present
invention may also be used as nutritional additives or supplements,
and as additives in dairy processing and fermentation processing.
Several polypeptides of the present invention also have human and
animal health related benefits.
[0052] Genetic constructs comprising the inventive polynucleotides
are provided, together with transgenic host cells comprising such
constructs and transgenic organisms, such as microbes, comprising
such cells.
[0053] The present invention also contemplates methods for
modulating the polynucleotide and/or polypeptide content and
composition of an organism, such methods optionally involving
stably incorporating into the genome of the organism a genetic
construct comprising a polynucleotide of the present invention.
Such modulation may involve up regulating or down regulating
expression from one or more polynucleotides of the present
invention. Up regulation may be accomplished, for example, by
providing multiple gene copies, modulating expression by modifying
regulatory elements, promoting transcriptional or translational
mechanisms, or the like. Similarly, down regulation may be
accomplished using known antisense and gene silencing techniques,
including RNAi. In one embodiment, the target organism is a
microbe, preferably a microbe used in fermentation, more preferably
a microbe of the genus Lactobacillus, and most preferably
Lactobacillus rhamnosus, or another closely related microbial
species used in the dairy industry.
[0054] In a related aspect, methods for producing a microbe having
an altered genotype and/or phenotype are provided, such methods
comprising transforming a microbial cell with a genetic construct
of the present invention to provide a transgenic cell, and
cultivating the transgenic cell under conditions conducive to
growth and multiplication. Organisms having an altered genotype or
phenotype as a result of modulation of the level or content of a
polynucleotide or polypeptide of the present invention compared to
a wild-type organism, as well as components and progeny of such
organisms, are contemplated by and encompassed within the present
invention.
[0055] The isolated polynucleotides of the present invention may be
usefully employed for the detection of lactic acid bacteria,
preferably L. rhamnosus, in a sample material, using techniques
well known in the art, such as polymerase chain reaction (PCR) and
DNA hybridization, as detailed below.
[0056] The inventive polynucleotides and polypeptides may also be
employed in methods for the selection and production of more
effective probiotic bacteria; as "bioactive" (health-promoting)
ingredients and health supplements; for immune function
enhancement; for reduction of blood lipids such as cholesterol; for
production of bioactive material from genetically modified
bacteria; as adjuvants; for wound healing; in vaccine development,
particularly mucosal vaccines; as animal probiotics for improved
animal health and productivity; in selection and production of
genetically modified rumen microorganisms for improved animal
nutrition and productivity, improved flavor and improved milk
composition; in methods for the selection and production of
improved natural food bacteria for improved flavor, faster flavor
development, improved fermentation characteristics, vitamin
synthesis and improved textural characteristics; for the production
of improved food bacteria through genetic modification; and for the
identification of novel enzymes for the production of, for example,
flavors or aroma concentrates.
[0057] The isolated polynucleotides of the present invention also
have utility in genome mapping, in physical mapping, and in
positional cloning of genes of more or less related microbes.
Additionally, the polynucleotide sequences identified as SEQ ID NO:
1-33, and their variants, may be used to design oligonucleotide
probes and primers. Oligonucleotide probes and primers have
sequences that are substantially complementary to the
polynucleotide of interest over a certain portion of the
polynucleotide. Oligonucleotide probes designed using the
polynucleotides of the present invention may be used to detect the
presence and examine the expression patterns of genes in any
organism having sufficiently similar DNA and RNA sequences in their
cells, using techniques that are well known in the art, such as
slot blot DNA hybridization techniques. Oligonucleotide primers
designed using the polynucleotides of the present invention may be
used for PCR amplifications. Oligonucleotide probes and primers
designed using the polynucleotides of the present invention may
also be used in connection with various microarray technologies,
including the microarray technology of Affymetrix (Santa Clara,
Calif.).
[0058] The polynucleotides of the present invention may also
incorporate regulatory elements such as promoters, gene regulators,
origins of DNA replication, secretion signals, cell wall or
membrane anchors for genetic tools (such as expression or
integration vectors).
[0059] The polynucleotide sequences, encoded polypeptides and
genetic constructs of this invention are useful for improving the
properties of microbes that are used in the manufacture of
milk-derived products, such as cheeses, yogurt, fermented milk
products, sour milks, and buttermilk. Microbial metabolism during
fermentation, which results in the breakdown of proteins, lipids
and lactose in milk, influences the speed of ripening, the texture
and consistency of fermented milk products, and the development of
flavors and aromas during ripening. Undesirable flavors in milk
products are produced, for example, by the food of milk-producing
animals, microbial action and enzymatic activity during
fermentation, and require removal. The present invention provides
polynucleotides and polypeptides and methods for their use in
modifying the flavor, aroma, texture and health-related benefits of
milk-derived products.
[0060] Methods are described for modulating the polynucleotide
content or composition of microbes used in the dairy industry by
transforming the microbes with one or more polynucleotide sequences
of Lactobacillus rhamnosus strain HN001. Certain of the inventive
polynucleotides encode polypeptides that increase the survivability
of microbes during industrial fermentation processes, wherein
exposure to osmotic, temperature and other stresses can lead to
reduced microbial viability, impaired metabolic activity and
suboptimal fermentation conditions. While the present invention is
described with particular reference to milk-derived products, it
will be recognized that microbes such as Lactobacillus, which are
used in the dairy industry, are also used in the production of
other foods and beverages (e.g., fermented vegetables, beer, wines,
juices and sourdough breads). The polynucleotides and polypeptides
described herein and their methods of use may also be employed in
the processing of these foods and beverages. In addition, the
inventive polypeptides and polynucleotides may be employed to
provide food products, including food products prepared from milk,
that have modified properties such as, but not limited to, improved
flavor, aroma, texture, nutritional benefits, immune system
modulation properties and health benefits.
[0061] This invention also provides transgenic microbial
populations comprising expressible polynucleotide sequences of
Lactobacillus rhamnosus strain HN001 which provide health-related
benefits. For example, the polypeptides encoded by the inventive
sequences include enzymes that detoxify carcinogens, degrade
allergenic proteins and lactose, and produce bioactive peptides and
biogenic amines. Microbes transformed with these polynucleotide
sequences can be taken internally as a probiotic composition or
alternatively, the microbes or their encoded polypeptides can be
added to products to provide health-related benefits. Nonpathogenic
bacteria, preferably lactic-acid producing species of Bacillus,
Lactobacillus, Sporolactobacillus or Bifidiobacterium, that are
able to colonize the gastrointestinal tract, preferably the
gastrointestinal tract of a mammal, are useful for preventing or
reducing pathogen colonization of the gastrointestinal mucosa, and
for replacing normal flora that are depleted, for example, by drug
therapy. The polynucleotide sequences of this invention can be used
to transform microbes for use in a therapeutic composition that is
effective for treating or preventing a gastrointestinal condition
or disorder caused by the presence of pathogenic microbes in the
gastrointestinal tract or by the absence of normal intestinal
microbes in the intestinal tract. Such probiotic compositions can
be administered alone or in combination with another pharmaceutical
agent, depending on the condition that is to be treated.
[0062] All references cited herein, including patent references and
non-patent publications, are hereby incorporated by reference in
their entireties.
BRIEF DESCRIPTION OF THE DRAWINGS
[0063] FIG. 1 shows the nucleotide sequence of L. rhamnosus strain
HN001 esterase gene AA7 (SEQ ID NO: 3) showing ATG initiation and
translation stop codons (boxed).
[0064] FIG. 2 shows the amino acid sequence of HN001 esterase AA7
(SEQ ID NO: 44).
[0065] FIG. 3 demonstrates the esterase activity of the AA7 fusion
protein. Production of ethyl butyrate from para-nitrophenyl
butyrate substrate was measured by change in OD at 410 nm. While
buffer only (.diamond-solid.) and the HN001 non-esterase fusion
protein (.circle-solid.) showed minimal esterase activity, the ST1
esterase from Streptococcus thermophilus (.sigma.) and the AA7
esterase fusion protein (.nu.) showed strong activity.
[0066] FIG. 4 shows the dose-response of the AA7 fusion protein.
While buffer-only (.lamda.) showed no esterase activity, increasing
amounts of His-patch/Thio/AA7 fusion protein; 5 .mu.l (.upsilon.),
10 .mu.l (.sigma.) and 20 .mu.l (.nu.) purified protein showed
increasing rates of substrate hydrolysis. The increase in substrate
hydrolysis was proportional to the amount of AA7 fusion protein
added.
[0067] FIG. 5 shows the effect of the serine esterase inhibitor
PMSF on esterase AA7 activity. Esterase activity of the
His-patch/Thio/AA7 fusion protein was assessed in the absence
(.nu.) and presence (.sigma.) of 10 mM PMSF. A buffer-only reaction
(.circle-solid.) was used as a negative control. The presence of
PMSF reduced HN001 esterase AA7 enzyme activity.
[0068] FIG. 6 shows the nucleotide sequence of L. rhamnosus strain
HN001 autoaggregation gene AG5 (SEQ ID NO: 10) showing ATG
initiation and translation stop codons (boxed).
[0069] FIG. 7 shows the amino acid sequence of HN001
autoaggregation protein AG5 (SEQ ID NO: 52).
[0070] FIGS. 8A and 8B are images of phase contrast
photomicrographs. FIG. 8A illustrates an image of a phase-contrast
photomicrograph (exposure 1/8 sec, final magnification.times.240)
showing obvious clumping of washed L. rhamnosus strain HN001 cells
in the presence of AG5 autoaggregation protein tagged with GST.
FIG. 8B illustrates an image of a phase-contrast photomicrograph
(exposure 1/8 sec, final magnification.times.240) showing no
clumping of washed L. rhamnosus strain HN.sub.001 cells in the
presence of an irrelevant (non-adhesion) HN001 protein tagged with
GST, as a negative control.
[0071] FIG. 9 shows the nucleotide sequence of L. rhamnosus strain
HN001 malic enzyme gene AA5 (SEQ ID NO: 2) showing ATG initiation
and translation stop codons (boxed).
[0072] FIG. 10 shows the amino acid sequence of HN001 malic enzyme
AA5 (SEQ ID NO: 43).
[0073] FIG. 11 demonstrates malate enzyme activity measured
experimentally as rate of pyruvate reduction by crude lysate
preparations of EJ1321 cell transformants. .nu. PBS buffer-only;
.sigma. 3.5 .mu.g wild-type EJ1321 cell lysate; .upsilon. 3.5 .mu.g
cell lysate of EJ1321 transformed with pGEX-6P-3 construct encoding
an irrelevant HN001 protein (AD5); .lamda. 3.5 .mu.g cell lysate of
EJ1321 transformed with pGEX-6P-3 construct encoding HN001 malic
enzyme AA5.
[0074] FIG. 12 shows experimental data illustrating the effect of
increasing amounts of EJ1321 crude lysate on malic enzyme activity.
.nu. 5 .mu.l wild-type EJ1321 cell lysate; .sigma. 5 .mu.l cell
lysate of EJ1321 transformed with pGex-6P-3 encoding AA5; .upsilon.
50 .mu.l cell lysate of EJ1321 transformed with pGex-6P-3 encoding
AA5; .lamda. 200 .mu.l cell lysate of EJ1321 transformed with
pGex-6P-3 encoding AA5.
[0075] FIG. 13 shows the nucleotide sequence of L. rhamnosus strain
HN001 malate dehydrogenase gene AG3 (SEQ ID NO: 9) showing TTG
initiation and translation stop codons (boxed).
[0076] FIG. 14 shows the amino acid sequence of HN001 malate
dehydrogenase AG3 (SEQ ID NO: 51).
[0077] FIG. 15 shows the nucleotide sequence of L. rhamnosus strain
HN001 dihydrodipicolinate synthase gene AI2 (SEQ ID NO: 13) showing
ATG initiation and translation stop codons (boxed).
[0078] FIG. 16 shows the amino acid sequence of HN001
dihydrodipicolinate synthase AI2 (SEQ ID NO: 55).
[0079] FIG. 17 shows the nucleotide sequence of L. rhamnosus strain
aspartate aminotransferase gene AH9 (SEQ ID NO: 12) showing GTG
initiation and translation stop codons (boxed).
[0080] FIG. 18 shows the amino acid sequence of HN001 aspartate
aminotransferase AH9 (SEQ ID NO: 54).
[0081] FIG. 19 shows the nucleotide sequence of L. rhamnosus strain
HN001 serine dehydratase subunits .alpha. (AF8) and .beta. (AF7).
ATG translation initiation codons and termination codons are shown,
boxed for AF8, and shaded for AF7.
[0082] FIG. 20 shows the experimentally measured percentage serine
utilisation by HN001 strain in liquid culture with 5 mM initial
serine concentration. .nu. HN001 transformed with vector only;
.upsilon. pTRKH2 construct containing HN001 serine dehydratase.
[0083] FIG. 21 shows the experimentally determined percentage
serine utilization by HN001 strain in liquid culture with 12 mM
initial serine concentration, .nu. HN001 transformed with vector
only, and .upsilon. pTRKH2 construct containing HN001 serine
dehydratase.
[0084] FIG. 22 shows the amino acid sequence of L. rhamnosus strain
HN001 serine dehydratase subunit .alpha. (AF8; SEQ ID NO: 49), and
the amino acid sequence of L. rhamnosus strain HN001 serine
dehydratase subunit .beta. (AF7; SEQ ID NO: 48).
[0085] FIG. 23 shows the nucleotide sequence of L. rhamnosus strain
HN001 histidinol-phosphate aminotransferase gene AG2 (SEQ ID NO: 8)
showing ATG initiation and translation stop codons (boxed).
[0086] FIG. 24 shows the amino acid sequence of HN001
histidinol-phosphate aminotransferase AG2 (SEQ ID NO: 50).
[0087] FIG. 25 shows the nucleotide sequence of L. rhamnosus strain
HN001 malY-aminotransferase gene AJ6 (SEQ ID NO: 17) showing ATG
initiation and translation stop codons (boxed).
[0088] FIG. 26 shows the amino acid sequence of HN001
malY-aminotransferase AJ6 (SEQ ID NO: 59).
[0089] FIG. 27 shows the nucleotide sequence of L. rhamnosus strain
HN001 malY-aminotransferase gene AJ7 (SEQ ID NO: 18) showing ATG
initiation and translation stop codons (boxed).
[0090] FIG. 28 shows the amino acid sequence of HN001
malY-aminotransferase AJ7 (SEQ ID NO: 60).
[0091] FIG. 29 shows the nucleotide sequence of L. rhamnosus strain
HN001 cystathione .beta.-lyase gene AC8 (SEQ ID NO: 5) showing ATG
initiation and translation stop codons (boxed).
[0092] FIG. 30 shows the amino acid sequence of HN001 cystathione
.beta.-lyase AC8 (SEQ ID NO: 46).
[0093] FIG. 31 shows experimental results demonstrating cystathione
.beta.-lyase activity measured as rate of mercaptide formation.
.upsilon. 10 .mu.l purified HN001 cystathione .beta.-lyase AC8
fusion protein; .nu. 10 .mu.l purified CAT fusion protein; .nu. 10
.mu.l H.sub.2O only; .lamda. 10 .mu.l elution buffer only.
[0094] FIG. 32 shows the experimentally determined dose-response of
the AC8 fusion protein. Cystathione .beta.-lyase activity of
increasing amounts of His-patch/Thio/AC8 fusion protein; 10 .mu.l
(.upsilon.), 25 .mu.l (.nu.) and 50 .mu.l (.sigma.) purified
protein showed increasing rates of mercaptide formation. The
increase in mercaptide formation was proportional to the amount of
AC8 fusion protein added.
[0095] FIG. 33 shows the nucleotide sequence of L. rhamnosus strain
HN001 phosphoenolpyruvate hydratase AK4 (SEQ ID NO: 20) showing ATG
initiation and translation stop codons (boxed).
[0096] FIG. 34 shows the amino acid sequence of L. rhamnosus strain
HN001 phosphoenolpyruvate hydratase AK4 (SEQ ID NO: 62).
[0097] FIG. 35 shows the nucleotide sequence of L. rhamnosus strain
HN001 tagatose bisphosphate aldolase AK1 (SEQ ID NO: 19) showing
ATG initiation and translation stop codons (boxed).
[0098] FIG. 36 shows the amino acid sequence of L. rhamnosus strain
HN.sub.001 tagatose bisphosphate aldolase AK1 (SEQ ID NO: 61).
[0099] FIG. 37 shows the nucleotide sequence of L. rhamnosus strain
HN001 phosphoglycerate kinase AK6 (SEQ ID NO: 22) showing TTG
initiation and translation stop codons (boxed).
[0100] FIG. 38 shows the amino acid sequence of L. rhamnosus strain
HN001 phosphoglycerate kinase AK6 (SEQ ID NO: 64).
[0101] FIG. 39 shows the nucleotide sequence of L. rhamnosus strain
HN001 triosephosphate isomerase AK5 (SEQ ID NO: 21) showing ATG
initiation and translation stop codons (boxed).
[0102] FIG. 40 shows the amino acid sequence of L. rhamnosus strain
HN001 triosephosphate isomerase AK5 (SEQ ID NO: 63).
[0103] FIG. 41 shows the nucleotide sequence of L. rhamnosus strain
HN001 phosphoryl carrier protein HPR AA9 (SEQ ID NO: 4) showing ATG
initiation and translation stop codons (boxed).
[0104] FIG. 42 shows the amino acid sequence of L. rhamnosus strain
HN001 phosphoryl carrier protein HPR AA9 (SEQ ID NO: 45).
[0105] FIG. 43 shows the nucleotide sequence of L. rhamnosus strain
HN001 glyceraldehyde-3-phosphate dehydrogenase AK7 (SEQ ID NO: 23)
showing ATG initiation and translation stop codons (boxed).
[0106] FIG. 44 shows the amino acid sequence of L. rhamnosus strain
HN001 glyceraldehyde-3-phosphate dehydrogenase AK7 (SEQ ID NO:
65).
[0107] FIG. 45 shows the nucleotide sequence of L. rhamnosus strain
HN001 sorR transcription regulator AL3 (SEQ ID NO: 24) showing ATG
initiation and translation stop codons (boxed).
[0108] FIG. 46 shows the amino acid sequence of L. rhamnosus strain
HN001 sorR transcription regulator AL3 (SEQ ID NO: 66).
[0109] FIG. 47 shows the nucleotide sequence of L. rhamnosus strain
fpg gene AL4 (SEQ ID NO: 25) showing ATG initiation and translation
stop codons (boxed).
[0110] FIG. 48 shows the amino acid sequence of HN001 fpg AL4 (SEQ
ID NO: 67).
[0111] FIG. 49 shows the nucleotide sequence of the L. rhamnosus
strain HN001 acetoin dehydrogenase gene AP1 (SEQ ID NO: 32) showing
ATG initiation and translation stop codons (boxed).
[0112] FIG. 50 shows the amino acid sequence of HN001 acetoin
dehydrogenase AP1 (SEQ ID NO: 74).
[0113] FIG. 51 illustrates the experimental results of an acetoin
reductase assay as measured by oxidation of NADH co-factor by OD at
340 nm in the presence of acetoin substrate. .lamda., elution
buffer only; .nu., purified irrelevant GST-fusion protein; .nu.,
purified GST protein; .upsilon., purified AP1-GST fusion
protein.
[0114] FIG. 52 shows the nucleotide sequence of the L. rhamnosus
strain HN001 aflatoxin B.sub.1 aldehyde reductase gene AI7 (SEQ ID
NO: 15) showing ATG initiation and translation stop codons
(boxed).
[0115] FIG. 53 shows the amino acid sequence of HN001 aflatoxin
B.sub.1 aldehyde reductase AI7 (SEQ ID NO: 57).
[0116] FIG. 54 shows the experimental results of aflatoxin B.sub.1
aldehyde reductase assay according to oxidation of the NADPH
co-factor in the presence of acetoin substrate. X, water only; +,
Sepharose column elution buffer only; .lamda., irrelevant
GST-fusion protein; .nu., 10 .mu.l purified AP4-GST fusion protein;
.sigma. 20 .mu.l purified AP4-GST fusion protein.
[0117] FIG. 55 shows the experimental determination of
6-Phospho-.beta.-galactosidase enzyme activity as measured by
substrate utilization using crude lysates of strains transformed
with pGex-6P-3 encoding A05 (.upsilon.), pGex-6P-3 encoding an
irrelevant protein (.nu.), or using lysis buffer only (X).
[0118] FIG. 56 shows the experimentally determined
6-Phospho-.beta.-galactosidase enzyme activity as measured
experimentally by substrate utilization using increasing amounts of
crude lysate from strains transformed with pGex-6P-3 encoding
A05-GST fusion protein. .upsilon., 50 .mu.l lysate; .nu., 100 .mu.l
lysate; .sigma., 200 .mu.l lysate; .lamda., 200 .mu.l lysis buffer
only.
[0119] FIG. 57 shows the nucleotide sequence of the L. rhamnosus
strain HN001 aromatic aminotransferase gene AH7 (SEQ ID NO: 11)
showing ATG initiation and translation stop codons (boxed).
[0120] FIG. 58 shows the amino acid sequence of HN001 aromatic
aminotransferase AH7 (SEQ ID NO: 53).
[0121] FIG. 59 shows the nucleotide sequence of the L. rhamnosus
strain HN001 acetate kinase gene AP5 (SEQ ID NO: 33) showing ATG
initiation and translation stop codons (boxed).
[0122] FIG. 60 shows the amino acid sequence of HN001 acetate
kinase AP5 (SEQ ID NO: 75).
[0123] FIG. 61 shows the nucleotide sequence of the L. rhamnosus
strain HN001 basic surface protein gene AC9 (SEQ ID NO: 6) showing
ATG initiation and translation stop codons (boxed).
[0124] FIG. 62 shows the amino acid sequence of HN001 basic surface
protein AC9 (SEQ ID NO: 47).
[0125] FIGS. 63A-C show the nucleotide sequence of the L. rhamnosus
strain HN001 aromatic outer membrane protein A AL8 (SEQ ID NO: 27)
showing ATG initiation and translation stop codons (boxed).
[0126] FIG. 64 shows the amino acid sequence of HN001 outer
membrane protein AL8 (SEQ ID NO: 69).
[0127] FIGS. 65A-D show the nucleotide sequence of the L. rhamnosus
strain HN001 aromatic extracellular matrix binding protein AM4 (SEQ
ID NO: 28) showing ATG initiation and translation stop codons
(boxed).
[0128] FIGS. 66A-B show the amino acid sequence of HN001
extracellular matrix binding protein AM4 (SEQ ID NO: 70).
[0129] FIGS. 67A-D show the nucleotide sequence of the L. rhamnosus
strain HN001 aromatic high-molecular-weight adhesion protein AL7
(SEQ ID NO: 26) showing ATG initiation and translation stop codons
(boxed).
[0130] FIG. 68 shows the amino acid sequence of HN001
high-molecular-weight adhesion protein AL7 (SEQ ID NO: 68).
[0131] FIG. 69 shows the nucleotide sequence of the L. rhamnosus
strain HN001 aromatic PEB1 AJ4 (SEQ ID NO: 16) showing ATG
initiation and translation stop codons (boxed).
[0132] FIG. 70 shows the amino acid sequence of HN001 PEB1 AJ4 (SEQ
ID NO: 58).
[0133] FIG. 71 shows the experimentally determined relative density
of autoradiographic signals from AJ4 protein (grey bars) to dot
blots of intestinal proteins, compared to a positive control (mapA,
white bars) and negative control (irrelevant HN001 protein, black
bars). Results for each dot (duplicates) are shown.
[0134] FIG. 72 shows the nucleotide sequence of the L. rhamnosus
strain HN001 dihydrodipicolinate reductase AI3 (SEQ ID NO: 14)
showing ATG initiation and translation stop codons (boxed).
[0135] FIG. 73 shows the amino acid sequence of HN001
dihydrodipicolinate reductase AI3 (SEQ ID NO: 56).
[0136] FIG. 74 shows the nucleotide sequence of the L. rhamnosus
strain HN001 Fructose-bisphosphate aldolase AM8 (SEQ ID NO: 29)
showing ATG initiation and translation stop codons (boxed).
[0137] FIG. 75 shows the amino acid sequence of HN001
Fructose-bisphosphate aldolase AM8 (SEQ ID NO: 71).
[0138] FIG. 76 shows the nucleotide sequence of the L. rhamnosus
strain HN001 chaperone protein dnaK AM9 (SEQ ID NO: 30) showing ATG
initiation and translation stop codons (boxed).
[0139] FIG. 77 shows the amino acid sequence of HN001 chaperone
protein dnaK AM9 (SEQ ID NO: 72).
[0140] FIG. 78 shows the nucleotide sequence of the L. rhamnosus
strain HN001 6-phospho-.beta.-galactosidase gene AO5 (SEQ ID NO:
31) showing translation stop codon (boxed).
[0141] FIG. 79 shows the amino acid sequence of HN001
6-phospho-.beta.-galactosidase AO5 (SEQ ID NO: 73).
[0142] FIGS. 80A-B show the nucleotide sequence of the L. rhamnosus
strain HN001 peptidase pepO (SEQ ID NO: 1) showing ATG initiation
and translation stop codons (boxed).
[0143] FIG. 81 shows the amino acid sequence of HN001 peptidase
pepO (SEQ ID NO: 42).
DETAILED DESCRIPTION
[0144] The polynucleotides disclosed herein were isolated by high
throughput sequencing of DNA libraries from the lactic acid
bacteria Lactobacillus rhamnosus as described in Example 1. The
polynucleotides and polypeptides of the present invention including
cell components selected from the group consisting of:
peptidoglycans, teichoic acids, lipoteichoic acids,
polysaccharides, adhesion proteins, secreted proteins, surface
layer or S-layer proteins, collagen binding proteins and other cell
surface proteins, and antibacterial substances such as bacteriocins
and organic acids produced by these bacteria. Such bacterial cell
components are known to mediate immune modulation, cell adhesion
and antibacterial activities, producing many beneficial effects
including: resistance to enteric pathogens: modulation of cancer,
including colon cancer: anti-mutagenesis effects; reduction of
small bowel bacterial overgrowth; modulation of auto-immune
disorders; reduction in allergic disorders; modulation of
urogenital infections, inflammatory bowel disorder, irritable bowel
syndrome, Helicobacter pylori infection and hepatic encephalopathy;
reduction of infection with pathogens; regulation of colonocyte
proliferation and differentiation; reduction of mucosal
permeability; and relief of constipation and diarrhea.
Polynucleotides involved in the synthesis of these proteins and in
the synthesis, modification, regulation, transport, synthesis
and/or accumulation of precursor molecules for these proteins are
used to modulate the immune effects, antibacterial, cell adhesion
and competitive exclusion effects of the bacteria or of components
that might be produced by these bacteria.
[0145] In order to function effectively as probiotic bacteria, L.
rhamnosus HN001 survives environmental stress conditions in the
gastrointestinal tract, as well as commercial and industrial
processes. Modification of particular polynucleotides or regulatory
processes has been shown to be effective against a number of
stresses including oxidative stress, pH, osmotic stress,
dehydration, carbon starvation, phosphate starvation, nitrogen
starvation, amino acid starvation, heat or cold shock and mutagenic
stress. Polynucleotides involved in stress resistance often confer
multistress resistance, i.e., when exposed to one stress, surviving
cells are resistant to several non-related stresses. Bacterial
genes and/or processes shown to be involved in multistress
resistance include:
[0146] Intracellular phosphate pools--inorganic phosphate
starvation leads to the induction of pho regulon genes, and is
linked to the bacterial stringent response. Gene knockouts
involving phosphate receptor genes appear to lead to multistress
resistance.
[0147] Intracellular guanosine pools--purine biosynthesis and
scavenger pathways involve the production of phosphate-guanosine
compounds that act as signal molecules in the bacterial stringent
response. Gene knockouts involving purine scavenger pathway genes
appear to confer multistress resistance.
[0148] Osmoregulatory molecules--small choline-based molecules,
such as glycine-betaine, and sugars, such as trehalose, are
protective against osmotic shock and are rapidly imported and/or
synthesized in response to increasing osmolarity.
[0149] Acid resistance--lactobacilli naturally acidify their
environment through the excretion of lactic acid, mainly through
the cit operon genes responsible for citrate uptake and
utilization.
[0150] Stress response genes--a number of genes appear to be
induced or repressed by heat shock, cold shock, and increasing salt
through the action of specific promoters.
[0151] The isolated polynucleotides of the present invention and
genetic constructs comprising such polynucleotides may be employed
to produce bacteria having desired phenotypes, including increased
resistance to stress and improved fermentation properties. Such
genetic constructs may be used to increase production of selected
polypeptides of the present invention in modified bacteria, or to
produce modified levels and/or compositions of polypeptides related
to polypeptides of the present invention in modified bacteria.
Bacteria having desired phenotypes may also be produced by
modulating the transcription and/or expression of polynucleotides
of the present invention and incorporating modified regulatory
elements in modified bacteria. Additionally, production of selected
polypeptides of the present invention may be reduced or blocked in
modified bacteria using techniques that are well known in the art,
such as antisense RNAi or other gene silencing techniques. Such
modified bacteria are also encompassed by the present
invention.
[0152] Many enzymes are known to influence dairy product flavor,
functional and textural characteristics, as well as general
fermentation characteristics such as speed of growth, acid
production and survival. These enzymes include those involved in
the metabolism of lipids, polysaccharides, amino acids and
carbohydrates, as well as those involved in the lysis of the
bacterial cells.
[0153] The isolated polynucleotides and polypeptides of the present
invention have been demonstrated to have the identities, functions
and utilities described throughout this application and in the
Examples. The polynucleotide and polypeptide SEQ ID NOs of the
present invention, and corresponding identification and functional
information is provided below in Table 1A. TABLE-US-00001 TABLE 1A
SEQ ID SEQ ID NO: NO: Polynucleotide Polypeptide Category
Identification and Description 1 42 Flavor, Peptidases are enzymes
that break the peptide bonds nutrition linking the amino group of
one amino acid with the carboxy group (acid group) of an adjacent
amino acid in a peptide chain. Peptidases are important in the
process of cheese ripening and the development of cheese flavor. 2
43 Flavor, Homolog isolated from L. rhamnosus of citM malic
carbohydrate enzyme that catalyzes L-malate oxidative metabolism
decarboxylation and pyruvate reductive carboxylation. It is part of
the noncyclic, branched pathway "tricarboxylic acid cycle" that is
characteristic of anaerobic citrate metabolism and is part of the
pathway that converts L-malate to L-lactate. 3 44 Flavor Homolog
isolated from L. rhamnosus of her esterase that catalyzes the
lipolysis of milk fat in dairy products such that the triglycerides
are hydrolyzed to free fatty acids and glycerol or mono- and
diglycerides. The protein plays an essential role in the
development of flavor in cheese 4 45 Survival Homolog isolated from
L. rhamnosus of JP28/pbH phosphoryl carrier protein HPR, involved
in the phosphoenolpyruvate:carbohydrate phosphotransferase system
(PTS) that is responsible for the uptake and phosphorylation of a
number of carbohydrates. The gene is up-regulated on heatshock 5 46
Amino acid Homolog isolated from L. rhamnosus of metC metabolism,
cystathione beta-lyase (EC 4.4.1.8) that is involved in flavor
metabolism of sulpher-containing compounds with important flavor
impacts. 6 47 Adhesion Homolog isolated from L. rhamnosus of basic
surface protein bspA (1) that is involved in adhesion to intestinal
epithelial cells and binds mucin. 7 48 Amino acid Homolog isolated
from L. rhamnosus of serine metabolism, dehydratase sdhB, beta
subunit that is involved in the flavor production of pyruvate from
serine. It plays a role in metabolism, flavor and survival in
carbohydrate poor media (including milk). 7 49 Amino acid Homolog
isolated from L. rhamnosus metabolism, of the serine dehydratse
alpha subunit sdhA flavor that is involved in the production of
pyruvate from serine. It plays a role in metabolism, flavor and
survival in carbohydrate poor media (including milk). 8 50 Amino
acid Homolog isolated from L. rhamnosus of metabolism,
Aminotransferase HisC that is involved in histidine flavor
biosynthesis. It plays a role in the development flavor and
biogenic amines. 9 51 Flavor, Homolog isolated from L. rhamnosus of
malate carbohydrate dehydrogenase citH that is involved in amino
acid metabolism biosynthesis as well as L-malate utilization
pathways. It is important for carbohydrate metabolism and
production of flavor intermediates. 10 52 Adhesion Homolog isolated
from L. rhamnosus of autoaggregation protein aggH that plays a role
in colonization of intestinal surface by excluding other bacteria
from binding sites. 11 53 Amino acid Homolog isolated from L.
rhamnosus of aromatic metabolism, amino acid transferase araT (1)
that is involved in flavor production of flavor compounds. 12 54
Amino acid Homolog isolated from L. rhamnosus of aspartate
metabolism, aminotransferase aspB that produces alpha- flavor
ketoglutarate using L-glutamate as an amino donor. It is involved
in production of important flavor determinants. 13 55 Amino acid
Homolog isolated from L. rhamnosus of metabolism,
dihydrodipicolinate synthase dapA (EC 4.2.1.52) that flavor
converts L-aspartate 4-semialdehyde and pyruvate to l-
2,3-dihydrodipicolinate as part of the lysine biosynthesis pathway.
L-aspartate 4-semialdehyde is also the first step of the glycine,
serine and threonine metabolic pathways. It is involved in
production of important flavor determinants. 14 56 Amino acid
Homolog isolated from L. rhamnosus of metabolism,
dihydrodipicolinate reductase dapB (EC 1.3.1.26) that flavor
converts L-2,3-dihydrodipicolinate to L- tetrahydropicolinate as
part of the lysine biosynthesis pathway. L-aspartate 4-semialdehyde
is also the first step of the glycine, serine and threonine
metabolic pathways. It is involved in production of important
flavor determinants. 15 57 Health Homolog isolated from L.
rhamnosus of Aflatoxin B1 aldehyde reductase afar that metabolizes
the carcinogen aflatoxin B1 (AFB1) and that is associated with
AFB1-resistance. Afar is active against particular ketones,
aromatic and aliphatic aldehydes and is an antocarcinogenic. It is
also useful for the production of flavor compounds. 16 58 Adhesion
Homolog isolated from L. rhamnosus of pebB that mediates binding to
epithelial cells, excludes binding of other bacteria and prevents
pathogenic infection. It is involved in colonization of intestinal
surfaces. 17 59 Amino acid Homolog isolated from L. rhamnosus of
Pyridoxal-5'- metabolism, phosphate-dependent aminotransferase patB
(1) that flavor has both aminotransferase and regulatory
activities, including the transamination of methionine and
regulation of maltose utilization. It plays a role in production of
flavor intermediates and growth on particular sugars. 18 60 Amino
acid Homolog isolated from L. rhamnosus of Pyridoxal-5'-
metabolism, phosphate-dependent aminotransferase patB (2) that
flavor has both aminotransferase and regulatory activities,
including the transamination of methionine and regulation of
maltose utilization. It plays a role in production of flavor
intermediates and growth on particular sugars. 19 61 Survival
Homolog isolated from L. rhamnosus of Tagatose 1,6- diphosphate
aldolase lacD (EC 4.1.2.40), a glycolytic enzyme that is
up-regulated by stress conditions and is involved in stress
resistance and carbohydrate utilization. 20 62 Survival Homolog
isolated from L. rhamnosus of Phosphoenolpyruvate hydratase eno (EC
4.2.1.11), a glycolytic enzyme up-regulated by stress conditions.
It is involved in stress resistance and carbohydrate utilization.
21 63 Survival Homolog isolated from L. rhamnosus of
triosephosphate isomerase tpi (EC 5.3.1.1), a glycolytic enzyme
up-regulated by stress conditions. It is involved in stress
resistance and carbohydrate utilization. 22 64 Survival Homolog
isolated from L. rhamnosus of phosphoglycerate kinase pgk (EC
2.7.2.3), a glycolytic enzyme up-regulated by stress conditions. It
is involved in stress resistance and carbohydrate utilization. 23
65 Cell wall Homolog isolated from L. rhamnosus of structure and
Glyceraldehyde-3-phosphate dehydrogenase gapdh function (EC
1.2.1.12), a glycolytic enzyme up-regulated by stress conditions.
It is involved in stress resistance and carbohydrate utilization
and is also a major cell wall component. 24 66 Regulation Homolog
isolated from L. rhamnosus of the positive regulator sorR in the
sorbose operon. It is important in the control of carbohydrate
metabolism and useful for inducible promoter for novel vectors. 25
67 Survival Homolog isolated from L. rhamnosus of
Formamidopyrimidine-DNA-glycosylase fpg that is important in
protecting bacterial DNA against oxidative free radicals. It
removes oxidized purine residues present in DNA, including the
highly mutagenic C8-oxo-guanine (8-oxoG) generated in DNA by active
oxygen during metabolism. It plays an important role in stress
resistance. 26 68 Adhesion Homolog isolated from L. rhamnosus of
hia, that mediates binding to epithelial cells and excludes binding
of other bacteria. It is involved in colonization of intestinal
surfaces. 27 69 Adhesion Homolog isolated from L. rhamnosus of
Outer membrane protein rompA, a surface bound molecule required for
adhesion. 28 70 Adhesion Homolog isolated from L. rhamnosus of
MLC36/emb that mediates binding to epithelial cells, excludes
binding of other bacteria and prevents pathogenic infection. It is
involved in colonization of intestinal surfaces and is involved in
plasminogen binding. It plays a role in immune impacts. 29 71
Survival Homolog isolated from L. rhamnosus of Fructose-
bisphosphate aldolase fba (EC 4.1.2.13), a glycolytic enzyme that
catalyzes the elimination reaction of D- Fructose 1,6-bisphosphate
to glycerone phosphate and D-glyceraldehyde 3-phosphate. It is
Up-regulatedby shock and is involved in metabolism, as a flavor
intermediates and in stress resistance. 30 72 Stress Homolog
isolated from L. rhamnosus of chaperone resistance protein dnaK
that plays a role in enhanced bacterial survival in industrial
processes, improved colonization of human intestinal environment,
altered protein translation characteristics and control of plasmid
stability. 31 73 Bacterial Homolog isolated from L. rhamnosus of
6-phospho-.beta.- growth, galactosidase (EC 3.2.1.85) that
catalyzes the nutrition, hydrolysis of O-glycosyl bonds of
6-phospho-beta-D- flavor galactosides to give alcohols and
6-phospho-D- development galactose, and is involved in lactose
utilization. It is useful for flavor and aroma enhancement,
nutritional enhancement, altered bacterial metabolic/growth
characteristics and removal of bitter or undesirable flavors. 32 74
Flavor Homolog isolated from L. rhamnosus of Acetoin dehydrogenase
butA (EC 1.1.1.5) that catalyzes the reduction of diacetyl to
acetoin, and acetoin to 2,3- butanediol as part of the pyruvate to
2,3-butanediol pathway. Diacetyl is an important dairy flavor
component. 33 75 Flavor Homolog isolated from L. rhamnosus of
Acetyl kinase ackA (EC 2.7.2.1) that catalyzes the phosphotransfer
between ADP and acetyl phosphate to yield ATP and acetate.
[0154] Isolated polynucleotides of the present invention include
the polynucleotides identified herein as SEQ ID NO: 1-33; isolated
polynucleotides comprising a polynucleotide sequence selected from
the group consisting of SEQ ID NO: 1-33; isolated polynucleotides
comprising at least a specified number of contiguous residues
(x-mers) of any of the polynucleotides identified as SEQ ID NO:
1-33; isolated polynucleotides comprising a polynucleotide sequence
that is complementary to any of the above polynucleotides; isolated
polynucleotides comprising a polynucleotide sequence that is a
reverse sequence or a reverse complement of any of the above
polynucleotides; antisense sequences corresponding to any of the
above polynucleotides; and variants of any of the above
polynucleotides, as that term is described in this
specification.
[0155] The word "polynucleotide(s)," as used herein, means a single
or double stranded polymer of deoxyribonucleotide or ribonucleotide
bases and includes DNA and corresponding RNA molecules, including
mRNA molecules, both sense and antisense strands of DNA and RNA
molecules, and comprehends cDNA, genomic DNA and recombinant DNA,
as well as wholly or partially synthesized polynucleotides. A
polynucleotide of the present invention may be an entire gene, or
any portion thereof. A gene is a DNA sequence which codes for a
functional protein or RNA molecule. Operable antisense
polynucleotides may comprise a fragment of the corresponding
polynucleotide, and the definition of "polynucleotide" therefore
includes all operable antisense fragments. Antisense
polynucleotides and techniques involving antisense polynucleotides
are well known in the art and are described, for example, in
Robinson-Benion, et al., "Antisense techniques," Methods in
Enzymol. 254(23): 363-375, 1995; and Kawasaki, et al., Artific.
Organs 20 (8): 836-848, 1996.
[0156] The definitions of the terms "complement," "reverse
complement," and "reverse sequence," as used herein, are best
illustrated by the following examples. For the sequence 5' AGGACC
3', the complement, reverse complement, and reverse sequences are
as follows: TABLE-US-00002 complement 3' TCCTGG 5' reverse
complement 3' GGTCCT 5' reverse sequence 5' CCAGGA 3'
[0157] Preferably, sequences that are complements of a specifically
recited polynucleotide sequence are complementary over the entire
length of the specific polynucleotide sequence.
[0158] Identification of genomic DNA and heterologous species DNA
can be accomplished by standard DNA/DNA hybridization techniques,
under appropriately stringent conditions, using all or part of a
DNA sequence as a probe to screen an appropriate library.
Alternatively, PCR techniques using oligonucleotide primers that
are designed based on known DNA and protein sequences can be used
to amplify and identify other identical or similar DNA sequences.
Synthetic DNA corresponding to the identified sequences or variants
thereof may be produced by conventional synthesis methods. All of
the polynucleotides described herein are isolated and purified, as
those terms are commonly used in the art.
[0159] The polynucleotides identified as SEQ ID NO: 1-33 contain
open reading frames ("ORFs"), or partial open reading frames,
encoding polypeptides. The open reading frames are specifically
identified in Example 1, below. Additionally, polynucleotides
identified as SEQ ID NO: 1-33 may contain non-coding sequences such
as promoters and terminators that may be useful as control
elements. The open reading frames contained in polynucleotides of
the present invention may be isolated and/or synthesized.
Expressible genetic constructs comprising the open reading frames
and suitable promoters, initiators, terminators, etc., which are
well known in the art, may then be constructed. Such genetic
constructs may be introduced into a host cell to express the
polypeptide encoded by the open reading frame. Expression of
quantities of a polypeptide of the present invention using
recombinant methodologies is useful, for example, when
polynucleotides of the present invention are used as nutritional
supplements, as flavor and/or texture enhancers, or the like.
[0160] Genetic constructs may be also designed and constructed, as
is known in the art, to enhance or silence expression of an
identified polypeptide. Antisense and gene silencing genetic
constructs may be designed and constructed, for example, to reduce
or silence expression of polypeptides of the present invention.
Genetic constructs of the present invention may thus be assembled
using techniques known in the art to enhance or reduce expression
of polypeptides of the present invention encoded by polynucleotides
of the present invention. Suitable host cells may include various
prokaryotic and eukaryotic cells. In vitro expression of
polypeptides is also possible, as well known in the art.
[0161] As used herein, the term "oligonucleotide" refers to a
relatively short segment of a polynucleotide sequence, generally
comprising between 6 and 60 nucleotides, and comprehends both
probes for use in hybridization assays and primers for use in the
amplification of DNA by polymerase chain reaction.
[0162] As used herein, the term "x-mer," with reference to a
specific value of "x," refers to a polynucleotide or polypeptide
comprising at least a specified number ("x") of contiguous residues
of any of the polynucleotides and polypeptides identified as SEQ ID
NO: 1-33 and 42-75. The value of x may be from about 20 to about
600, depending upon the specific sequence.
[0163] In another aspect, the present invention provides isolated
polypeptides encoded, or partially encoded, by the above
polynucleotides, including the polypeptides identified as SEQ ID
NO: 42-75. As used herein, the term "polypeptide" encompasses amino
acid chains of any length, including full-length proteins, wherein
the amino acid residues are linked by covalent peptide bonds. The
term "polypeptide encoded by a polynucleotide" as used herein,
includes polypeptides encoded by a polynucleotide which comprises
an isolated polynucleotide sequence or variant provided herein.
Polypeptides of the present invention may be naturally purified
products, or may be produced partially or wholly using recombinant
techniques. Such polypeptides may be glycosylated with bacterial,
fungal, mammalian or other eukaryotic carbohydrates or may be
non-glycosylated.
[0164] Polypeptides of the present invention may be produced
recombinantly by inserting a polynucleotide that encodes the
polypeptide into an expression vector and expressing the
polypeptide in an appropriate host. Any of a variety of expression
vectors known to those of ordinary skill in the art may be
employed. Expression may be achieved in any appropriate host cell
that has been transformed or transfected with an expression vector
containing a polynucleotide encoding a recombinant polypeptide.
Suitable host cells include prokaryotes, yeast and higher
eukaryotic cells. Preferably, the host cells employed are
Escherichia coli, Lactococcus lactis, Lactobacillus, insect, yeast
or mammalian cell lines, such as COS and CHO. The polynucleotide(s)
expressed in this manner may encode naturally occurring
polypeptides, portions of naturally occurring polypeptides, or
other variants thereof.
[0165] In a related aspect, polypeptides are provided that comprise
at least a functional portion of a polypeptide having an amino acid
sequence encoded by a polynucleotide of the present invention. As
used herein, a "functional portion" of a polypeptide is that
portion which contains the active site essential for affecting the
function of the polypeptide, for example, the portion of the
molecule that is capable of binding one or more reactants. The
active site may be made up of separate portions present on one or
more polypeptide chains and will generally exhibit high binding
affinity.
[0166] Functional portions of a polypeptide may be identified by
first preparing fragments of the polypeptide by either chemical or
enzymatic digestion of the polypeptide, or by mutation analysis of
the polynucleotide that encodes the polypeptide and subsequent
expression of the resulting mutant polypeptides. The polypeptide
fragments or mutant polypeptides are then tested to determine which
portions retain biological activity, using, for example, the
representative assays provided below.
[0167] Portions and other variants of the inventive polypeptides
may be generated by synthetic or recombinant means. Synthetic
polypeptides having fewer than about 100 amino acids, and generally
fewer than about 50 amino acids, may be generated using techniques
that are well known to those of ordinary skill in the art. For
example, such polypeptides may be synthesized using any of the
commercially available solid-phase techniques, such as the
Merrifield solid-phase synthesis method, where amino acids are
sequentially added to a growing amino acid chain (See Merrifield,
J. Am. Chem. Soc. 85:2149-2154, 1963). Equipment for automated
synthesis of polypeptides is commercially available from suppliers
such as Perkin Elmer/Applied Biosystems, Inc. (Foster City,
Calif.), and may be operated according to the manufacturer's
instructions. Variants of a native polypeptide may be prepared
using standard mutagenesis techniques, such as
oligonucleotide-directed site-specific mutagensis (Kunkel, Proc.
Natl. Acad. Sci. USA 82: 488-492, 1985). Sections of DNA sequences
may also be removed using standard techniques to permit preparation
of truncated polypeptides.
[0168] In general, the polypeptides disclosed herein are prepared
in an isolated, substantially pure form. Preferably, the
polypeptides are at least about 80% pure; more preferably at least
about 90% pure; and most preferably at least about 99% pure.
[0169] As used herein, the term "variant" comprehends
polynucleotide or polypeptide sequences different from the
specifically identified sequences, wherein one or more nucleotides
or amino acid residues is deleted, substituted, or added. Variants
may be naturally occurring allelic variants, or non-naturally
occurring variants. Variant polynucleotide and polypeptide
sequences preferably exhibit at least 75%, more preferably at least
80%, more preferably yet at least 85%, and most preferably at least
90% or 95% identity to a sequence of the present invention. The
percentage identity is determined by aligning the two sequences to
be compared as described below, determining the number of identical
residues in the aligned portion, dividing that number by the total
number of residues in the inventive (queried) sequence, and
multiplying the result by 100.
[0170] Polynucleotide and polypeptide sequences may be aligned, and
the percentage of identical residues in a specified region may be
determined against another polynucleotide or polypeptide, using
computer algorithms that are publicly available. Two exemplary
algorithms for aligning and identifying the similarity of
polynucleotide sequences are the BLASTN and FASTA algorithms.
Polynucleotides may also be analyzed using the BLASTX algorithm,
which compares the six-frame conceptual translation products of a
nucleotide query sequence (both strands) against a protein sequence
database. The percentage identity of polypeptide sequences may be
examined using the BLASTP algorithm. The BLASTN, BLASTX and BLASTP
programs are available on the NCBI anonymous FTP server and from
the National Center for Biotechnology Information (NCBI), National
Library of Medicine, Building 38A, Room 8N805, Bethesda, Md. 20894,
USA. The BLASTN algorithm Version 2.0.11 [Jan. 20, 2000], set to
the parameters described below, is preferred for use in the
determination of polynucleotide variants according to the present
invention. The BLASTP algorithm, set to the parameters described
below, is preferred for use in the determination of polypeptide
variants according to the present invention. The use of the BLAST
family of algorithms, including BLASTN, BLASTP and BLASTX, is
described at NCBI's website and in the publication of Altschul, et
al., Nucleic Acids Res. 25: 3389-3402, 1997.
[0171] The computer algorithm FASTA is available on the Internet
and from the University of Virginia by contacting the Vice Provost
for Research, University of Virginia, P.O. Box 9025,
Charlottesville, Va. 22906-9025, USA. FASTA Version 2.0u4 [February
1996], set to the default parameters described in the documentation
and distributed with the algorithm, may be used in the
determination of variants according to the present invention. The
use of the FASTA algorithm is described in Pearson and Lipman,
Proc. Natl. Acad. Sci. USA 85:2444-2448, 1988; and Pearson, Methods
in Enzymol. 183: 63-98, 1990.
[0172] The following running parameters are preferred for
determination of alignments and similarities using BLASTN that
contribute to the E values and percentage identity for
polynucleotide sequences: Unix running command: blastall -p blastn
-d embldb -e 10 -G0 -E0 -r 1 -v 30 -b 30 -i queryseq -o results;
the parameters are: -p Program Name [String]; -d Database [String];
-e Expectation value (E) [Real]; -G Cost to open a gap (zero
invokes default behavior) [Integer]; -E Cost to extend a gap (zero
invokes default behavior) [Integer]; -r Reward for a nucleotide
match (BLASTN only) [Integer]; -v Number of one-line descriptions
(V) [Integer]; -b Number of alignments to show (B) [Integer]; -i
Query File [File In]; and -o BLAST report Output File [File Out]
Optional.
[0173] The following running parameters are preferred for
determination of alignments and similarities using BLASTP that
contribute to the E values and percentage identity of polypeptide
sequences: blastall -p blastp -d swissprotdb -e 10 -G 0 -E 0 -v 30
-b 30 -i queryseq -o results; the parameters are: -p Program Name
[String]; -d Database [String]; -e Expectation value (E) [Real]; -G
Cost to open a gap (zero invokes default behavior) [Integer]; -E
Cost to extend a gap (zero invokes default behavior) [Integer]; -v
Number of one-line descriptions (v) [Integer]; -b Number of
alignments to show (b) [Integer]; -I Query File [File In]; -o BLAST
report Output File [File Out] Optional. The "hits" to one or more
database sequences by a queried sequence produced by BLASTN, FASTA,
BLASTP or a similar algorithm, align and identify similar portions
of sequences. The hits are arranged in order of the degree of
similarity and the length of sequence overlap. Hits to a database
sequence generally represent an overlap over only a fraction of the
sequence length of the queried sequence.
[0174] The BLASTN, FASTA, and BLASTP algorithms also produce
"Expect" values for alignments. The Expect value (E) indicates the
number of hits one can "expect" to see over a certain number of
contiguous sequences by chance when searching a database of a
certain size. The Expect value is used as a significance threshold
for determining whether the hit to a database, such as the
preferred EMBL database, indicates true similarity. For example, an
E value of 0.1 assigned to a polynucleotide hit is interpreted as
meaning that in a database of the size of the EMBL database, one
might expect to see 0.1 matches over the aligned portion of the
sequence with a similar score simply by chance. By this criterion,
the aligned and matched portions of the polynucleotide sequences
then have a probability of 90% of being the same. For sequences
having an E value of 0.01 or less over aligned and matched
portions, the probability of finding a match by chance in the EMBL
database is 1% or less using the BLASTN or FASTA algorithm.
[0175] According to one embodiment, "variant" polynucleotides and
polypeptides, with reference to each of the polynucleotides and
polypeptides of the present invention, preferably comprise
sequences producing an E value of 0.01 or less using the BLASTN,
FASTA, or BLASTP algorithms set at parameters described above when
compared to the polynucleotide or polypeptide of the present
invention. According to a preferred embodiment, a variant
polynucleotide is a sequence having an E value of 0.01 or less
using the BLASTN or FASTA algorithms set at parameters described
above when analyzed against a polynucleotide of the present
invention. Similarly, according to a preferred embodiment, a
variant polypeptide is a sequence having an E value of 0.01 or less
using the BLASTP algorithm set at the parameters described above
when analyzed against a polynucleotide of the present
invention.
[0176] As noted above, the percentage identity is determined by
aligning sequences using one of the BLASTN, FASTA, or BLASTP
algorithms, set at the running parameters described above, and
identifying the number of identical nucleic or amino acids over the
aligned portions; dividing the number of identical nucleic or amino
acids by the total number of nucleic or amino acids of the
polynucleotide or polypeptide sequence of the present invention;
and then multiplying by 100 to determine the percentage identity.
For example, a polynucleotide of the present invention having 220
nucleic acids has a hit to a polynucleotide sequence in the EMBL
database having 520 nucleic acids over a stretch of 23 nucleotides
in the alignment produced by the BLASTN algorithm using the
parameters described above. The 23 nucleotide hit includes 21
identical nucleotides, one gap and one different nucleotide. The
percentage identity of the polynucleotide of the present invention
to the hit in the EMBL library is thus 21/220 times 100, or 9.5%.
The polynucleotide sequence in the EMBL database is thus not a
variant of a polynucleotide of the present invention.
[0177] In addition to having a specified percentage identity to an
inventive polynucleotide or polypeptide sequence, variant
polynucleotides and polypeptides preferably have additional
structure and/or functional features in common with the inventive
polynucleotide or polypeptide. Polypeptides having a specified
degree of identity to a polypeptide of the present invention share
a high degree of similarity in their primary structure and have
substantially similar functional properties. In addition to sharing
a high degree of similarity in their primary structure to
polynucleotides of the present invention, polynucleotides having a
specified degree of identity to, or capable of hybridizing to an
inventive polynucleotide preferably have at least one of the
following features: (i) they contain an open reading frame or
partial open reading frame encoding a polypeptide having
substantially the same functional properties as the polypeptide
encoded by the inventive polynucleotide; or (ii) they contain
identifiable domains in common.
[0178] Alternatively, variant polynucleotides of the present
invention hybridize to the polynucleotide sequences recited in SEQ
ID NO: 1-33, or complements, reverse sequences, or reverse
complements of those sequences under stringent conditions. As used
herein, "stringent conditions" refers to prewashing in a solution
of 6.times.SSC, 0.2% SDS; hybridizing at 65.degree. C.,
6.times.SSC, 0.2% SDS overnight; followed by two washes of 30
minutes each in 1.times.SSC, 0.1% SDS at 65.degree. C. and two
washes of 30 minutes each in 0.2.times.SSC, 0.1% SDS at 65.degree.
C.
[0179] The present invention also encompasses polynucleotides that
differ from the disclosed sequences but that, as a consequence of
the discrepancy of the genetic code, encode a polypeptide having
similar enzymatic activity as a polypeptide encoded by a
polynucleotide of the present invention. Thus, polynucleotides
comprising sequences that differ from the polynucleotide sequences
recited in SEQ ID NO: 1-33, or complements, reverse sequences, or
reverse complements of those sequences as a result of conservative
substitutions are encompassed within the present invention.
Additionally, polynucleotides comprising sequences that differ from
the inventive polynucleotide sequences or complements, reverse
complements, or reverse sequences as a result of deletions and/or
insertions totaling less than 10% of the total sequence length are
also contemplated by and encompassed within the present invention.
Similarly, polypeptides comprising sequences that differ from the
inventive polypeptide sequences as a result of amino acid
substitutions, insertions, and/or deletions totaling less than 15%
of the total sequence length are contemplated by and encompassed
within the present invention, provided the variant polypeptide has
similar activity to the inventive polypeptide.
[0180] The polynucleotides of the present invention may be isolated
from various libraries, or may be synthesized using techniques that
are well known in the art. The polynucleotides may be synthesized,
for example, using automated oligonucleotide synthesizers (e.g.,
Beckman Oligo 1000M DNA Synthesizer) to obtain polynucleotide
segments of up to 50 or more nucleic acids. A plurality of such
polynucleotide segments may then be ligated using standard DNA
manipulation techniques that are well known in the art of molecular
biology. One conventional and exemplary polynucleotide synthesis
technique involves synthesis of a single stranded polynucleotide
segment having, for example, 80 nucleic acids, and hybridizing that
segment to a synthesized complementary 85 nucleic acid segment to
produce a 5-nucleotide overhang. The next segment may then be
synthesized in a similar fashion, with a 5-nucleotide overhang on
the opposite strand. The "sticky" ends ensure proper ligation when
the two portions are hybridized. In this way, a complete
polynucleotide of the present invention may be synthesized entirely
in vitro.
[0181] Polynucleotides and polypeptides of the present invention
comprehend polynucleotides and polypeptides comprising at least a
specified number of contiguous residues .alpha.-mers) of any of the
polynucleotides and polypeptides identified as SEQ ID NO: 1-33 and
42-75 or their variants. According to preferred embodiments, the
value of x is preferably at least 20, more preferably at least 40,
more preferably yet at least 60, and most preferably at least 80.
Thus, polynucleotides and polypeptides of the present invention
include polynucleotides comprising a 20-mer, a 40-mer, a 60-mer, an
80-mer, a 100-mer, a 120-mer, a 150-mer, a 180-mer, a 220-mer a
250-mer, or a 300-mer, 400-mer, 500-mer or 600-mer of a
polynucleotide or polypeptide identified as SEQ ID NO: 1-75 or a
variant of one of the polynucleotides or polypeptides identified as
SEQ ID NO: 1-33 and 42-75.
[0182] Oligonucleotide probes and primers complementary to and/or
corresponding to SEQ ID NO: 1-33, and variants of those sequences,
are also comprehended by the present invention. Such
oligonucleotide probes and primers are substantially complementary
to the polynucleotide of interest. An oligonucleotide probe or
primer is described as "corresponding to" a polynucleotide of the
present invention, including one of the sequences set out as SEQ ID
NO: 1-33 or a variant, if the oligonucleotide probe or primer, or
its complement, is contained within one of the sequences set out as
SEQ ID NO: 1-33 or a variant of one of the specified sequences.
[0183] Two single stranded sequences are said to be substantially
complementary when the nucleotides of one strand, optimally aligned
and compared, with the appropriate nucleotide insertions and/or
deletions, pair with at least 80%, preferably at least 90% to 95%,
and more preferably at least 98% to 100%, of the nucleotides of the
other strand. Alternatively, substantial complementarity exists
when a first DNA strand will selectively hybridize to a second DNA
strand under stringent hybridization conditions. Stringent
hybridization conditions for determining complementarity include
salt conditions of less than about 1 M, more usually less than
about 500 mM and preferably less than about 200 mM. Hybridization
temperatures can be as low as 5.degree. C., but are generally
greater than about 22.degree. C., more preferably greater than
about 30.degree. C. and most preferably greater than about
37.degree. C. Longer DNA fragments may require higher hybridization
temperatures for specific hybridization. Since the stringency of
hybridization may be affected by other factors such as probe
composition, presence of organic solvents and extent of base
mismatching, the combination of parameters is more important than
the absolute measure of any one alone. DNA-DNA hybridization
studies may performed using either genomic DNA or DNA derived by
preparing cDNA from the RNA present in a sample to be tested.
[0184] In addition to DNA-DNA hybridization, DNA-RNA or RNA-RNA
hybridization assays are also possible. In the first case, the mRNA
from expressed genes would then be detected instead of genomic DNA
or cDNA derived from mRNA of the sample. In the second case, RNA
probes could be used. In addition, artificial analogs of DNA
hybridizing specifically to target sequences could also be
used.
[0185] In specific embodiments, the oligonucleotide probes and/or
primers comprise at least about 6 contiguous residues, more
preferably at least about 10 contiguous residues, and most
preferably at least about 20 contiguous residues complementary to a
polynucleotide sequence of the present invention. Probes and
primers of the present invention may be from about 8 to 100 base
pairs in length or, preferably from about 10 to 50 base pairs in
length or, more preferably from about 15 to 40 base pairs in
length. The primers and probes may be readily selected using
procedures well known in the art, taking into account DNA-DNA
hybridization stringencies, annealing and melting temperatures,
potential for formation of loops and other factors, which are well
known in the art. Tools and software suitable for designing probes,
and especially suitable for designing PCR primers, are available on
the Internet. In addition, a software program suitable for
designing probes, and especially for designing PCR primers, is
available from Premier Biosoft International, 3786 Corina Way, Palo
Alto, Calif. 94303-4504. Preferred techniques for designing PCR
primers are also disclosed in Dieffenbach and Dyksler, PCR primer:
a laboratory manual, CSHL Press: Cold Spring Harbor, N.Y.,
1995.
[0186] A plurality of oligonucleotide probes or primers
corresponding to a polynucleotide of the present invention may be
provided in a kit form. Such kits generally comprise multiple DNA
or oligonucleotide probes, each probe being specific for a
polynucleotide sequence. Kits of the present invention may comprise
one or more probes or primers corresponding to a polynucleotide of
the present invention, including a polynucleotide sequence
identified in SEQ ID NO: 1-33.
[0187] In one embodiment useful for high-throughput assays, the
oligonucleotide probe kits of the present invention comprise
multiple probes in an array format, wherein each probe is
immobilized in a predefined, spatially addressable location on the
surface of a solid substrate. Array formats which may be usefully
employed in the present invention are disclosed, for example, in
U.S. Pat. Nos. 5,412,087, 5,545,531, and PCT Publication No. WO
95/00530, the disclosures of which are hereby incorporated by
reference.
[0188] Oligonucleotide probes for use in the present invention may
be constructed synthetically prior to immobilization on an array,
using techniques well known in the art (See, for example, Gait,
ed., Oligonucleotide synthesis a practical approach, IRL Press:
Oxford, England, 1984). Automated equipment for the synthesis of
oligonucleotides is available commercially from such companies as
Perkin Elmer/Applied Biosystems Division (Foster City, Calif.) and
may be operated according to the manufacturer's instructions.
Alternatively, the probes may be constructed directly on the
surface of the array using techniques taught, for example, in PCT
Publication No. WO 95/00530.
[0189] The solid substrate and the surface thereof preferably form
a rigid support and are generally formed from the same material.
Examples of materials from which the solid substrate may be
constructed include polymers, plastics, resins, membranes,
polysaccharides, silica or silica-based materials, carbon, metals
and inorganic glasses. Synthetically prepared probes may be
immobilized on the surface of the solid substrate using techniques
well known in the art, such as those disclosed in U.S. Pat. No.
5,412,087.
[0190] In one such technique, compounds having protected functional
groups, such as thiols protected with photochemically removable
protecting groups, are attached to the surface of the substrate.
Selected regions of the surface are then irradiated with a light
source, preferably a laser, to provide reactive thiol groups. This
irradiation step is generally performed using a mask having
apertures at predefined locations using photolithographic
techniques well known in the art of semiconductors. The reactive
thiol groups are then incubated with the oligonucleotide probe to
be immobilized. The precise conditions for incubation, such as
temperature, time and pH, depend on the specific probe and can be
easily determined by one of skill in the art. The surface of the
substrate is washed free of unbound probe and the irradiation step
is repeated using a second mask having a different pattern of
apertures. The surface is subsequently incubated with a second,
different, probe. Each oligonucleotide probe is typically
immobilized in a discrete area of less than about 1 mm.sup.2.
Preferably each discrete area is less than about 10,000 mm.sup.2,
more preferably less than about 100 mm.sup.2. In this manner, a
multitude of oligonucleotide probes may be immobilized at
predefined locations on the array.
[0191] The resulting array may be employed to screen for
differences in organisms or samples or products containing genetic
material as follows. Genomic or cDNA libraries are prepared using
techniques well known in the art. The resulting target DNA is then
labeled with a suitable marker, such as a radiolabel, chromophore,
fluorophore or chemiluminescent agent, using protocols well known
for those skilled in the art. A solution of the labeled target DNA
is contacted with the surface of the array and incubated for a
suitable period of time.
[0192] The surface of the array is then washed free of unbound
target DNA and the probes to which the target DNA hybridized are
determined by identifying those regions of the array to which the
markers are attached. When the marker is a radiolabel, such as
.sup.32P, autoradiography is employed as the detection method. In
one embodiment, the marker is a fluorophore, such as fluorescein,
and the location of bound target DNA is determined by means of
fluorescence spectroscopy. Automated equipment for use in
fluorescence scanning of oligonucleotide probe arrays is available
from Affymetrix, Inc. (Santa Clara, Calif.) and may be operated
according to the manufacturer's instructions. Such equipment may be
employed to determine the intensity of fluorescence at each
predefined location on the array, thereby providing a measure of
the amount of target DNA bound at each location. Such an assay
would be able to indicate not only the absence and presence of the
marker probe in the target, but also the quantitative amount as
well.
[0193] The significance of such a high-throughput screening system
is apparent for applications such as microbial selection and
quality control operations in which there is a need to identify
large numbers of samples or products for unwanted materials, to
identify microbes or samples or products containing microbial
material for quarantine purposes, etc., or to ascertain the true
origin of samples or products containing microbes. Screening for
the presence or absence of polynucleotides of the present invention
used as identifiers for tagging microbes and microbial products can
be valuable for later detecting the genetic composition of food,
fermentation and industrial microbes or microbes in human or animal
digestive system after consumption of probiotics, etc.
[0194] In this manner, oligonucleotide probe kits of the present
invention may be employed to examine the presence/absence (or
relative amounts in case of mixtures) of polynucleotides in
different samples or products containing different materials
rapidly and in a cost-effective manner. Examples of microbial
species which may be examined using the present invention, include
lactic acid bacteria, such as Lactobacillus rhamnosus, and other
microbial species.
[0195] Another aspect of the present invention involves collections
of a plurality of polynucleotides of the present invention. A
collection of a plurality of the polynucleotides of the present
invention, particularly the polynucleotides identified as SEQ ID
NO: 1-33, may be recorded and/or stored on a storage medium and
subsequently accessed for purposes of analysis, comparison, etc.
Suitable storage media include magnetic media such as magnetic
diskettes, magnetic tapes, CD-ROM storage media, optical storage
media, and the like. Suitable storage media and methods for
recording and storing information, as well as accessing information
such as polynucleotide sequences recorded on such media, are well
known in the art. The polynucleotide information stored on the
storage medium is preferably computer-readable and may be used for
analysis and comparison of the polynucleotide information.
[0196] Another aspect of the present invention thus involves
storage medium on which are recorded a collection of the
polynucleotides of the present invention, particularly a collection
of the polynucleotides identified as SEQ ID NO: 1-33. According to
one embodiment, the storage medium includes a collection of at
least 20, of the polynucleotides of the present invention,
preferably at least 20 of the polynucleotides identified as SEQ ID
NO: 1-33, including variants of those polynucleotides.
[0197] Another aspect of the present invention involves a
combination of polynucleotides, the combination containing at least
5, preferably at least 10, more preferably at least 20 different
polynucleotides of the present invention, including polynucleotides
selected from SEQ ID NO: 1-33, and variants of these
polynucleotides.
[0198] In another aspect, the present invention provides genetic
constructs comprising, in the 5'-3' direction, a gene promoter
sequence and an open reading frame coding for at least a functional
portion of a polypeptide encoded by a polynucleotide of the present
invention. In certain embodiments, the genetic constructs of the
present invention also comprise a gene termination sequence. The
open reading frame may be oriented in either a sense or antisense
direction. Genetic constructs comprising a non-coding region of a
gene coding for a polypeptide encoded by the above polynucleotides
or a nucleotide sequence complementary to a non-coding region,
together with a gene promoter sequence, are also provided. A
terminator sequence may form part of this construct. Preferably,
the gene promoter and termination sequences are functional in a
host organism. More preferably, the gene promoter and termination
sequences are common to those of the polynucleotide being
introduced. The genetic construct may further include a marker for
the identification of transformed cells.
[0199] Techniques for operatively linking the components of the
genetic constructs are well known in the art and include the use of
synthetic linkers containing one or more restriction endonuclease
sites as described, for example, by Sambrook et al., in Molecular
cloning: a laboratory manual, Cold Spring Harbor Laboratories
Press: Cold Spring Harbor, N.Y., 1989. The genetic constructs of
the present invention may be linked to a vector having at least one
replication system, for example, E. coli, whereby after each
manipulation, the resulting construct can be cloned and sequenced
and the correctness of the manipulation determined.
[0200] Transgenic microbial cells comprising the genetic constructs
of the present invention are also provided by the present
invention, together with microbes comprising such transgenic cells,
products and progeny of such microbes, and materials including such
microbes. Techniques for stably incorporating genetic constructs
into the genome of target microbes, such as Lactobacillus species,
Lactococcus lactis or E. coli, are well known in the art of
bacterial transformation and are exemplified by the transformation
of E. coli for sequencing in Example 1, as well as the
transformations described in numerous of the examples provided
below.
[0201] Transgenic, non-microbial, cells comprising the genetic
constructs of the present invention are also provided, together
with organisms comprising such transgenic cells, and products and
progeny of such organisms. Genetic constructs of the present
invention may be stably incorporated into the genomes of
non-microbial target organisms, such as fungi, using techniques
well known in the art.
[0202] In preferred embodiments, the genetic constructs of the
present invention are employed to transform microbes used in the
production of food products, ingredients, processing aids,
additives or supplements and for the production of microbial
products for pharmaceutical uses, particularly for modulating
immune system function and immunological effects; and in the
production of chemoprotectants providing beneficial effects,
probiotics and health supplements. The inventive genetic constructs
may also be employed to transform bacteria that are used to produce
enzymes or substances such as polysaccharides, flavor compounds,
and bioactive substances, and to enhance resistance to industrial
processes such as drying and to adverse stimuli in the human
digestive system. The genes involved in antibiotic production, and
phage uptake and resistance in Lactobacillus rhamnosus are
considered to be especially useful. The target microbe to be used
for transformation with one or more polynucleotides or genetic
constructs of the present invention is preferably selected from the
group consisting of bacterial genera Lactococcus, Lactobacillus,
Streptococcus, Oenococcus, Lactosphaera, Trichococcus, Pediococcus
and others potentially useful in various fermentation industries
selected, most preferably, from the group consisting of
Lactobacillus species in the following list: Lactobacillus
acetotolerans, Lactobacillus acidophilus, Lactobacillus agilis,
Lactobacillus alimentarius, Lactobacillus amylolyticus,
Lactobacillus amylophilus, Lactobacillus amylovorus, Lactobacillus
animalis, Lactobacillus arizonae, Lactobacillus aviarius,
Lactobacillus bavaricus, Lactobacillus bifermentans, Lactobacillus
brevis, Lactobacillus buchneri, Lactobacillus bulgaricus,
Lactobacillus casei, Lactobacillus collinoides, Lactobacillus
coryniformis, Lactobacillus crispatus, Lactobacillus curvatus,
Lactobacillus delbrueckii, Lactobacillus delbrueckii subsp.
bulgaricus, Lactobacillus delbrueckii subsp. lactis, Lactobacillus
farciminis, Lactobacillus fermentum, Lactobacillus fructivorans,
Lactobacillus gallinarum, Lactobacillus gasseri, Lactobacillus
graminis, Lactobacillus hamsteri, Lactobacillus helveticus,
Lactobacillus helveticus subsp. jugurti, Lactobacillus hetero,
Lactobacillus hilgardii, Lactobacillus homohiochii, Lactobacillus
japonicus, Lactobacillus johnsonii, Lactobacillus kefiri,
Lactobacillus lactis, Lactobacillus leichmannii, Lactobacillus
lindneri, Lactobacillus mali, Lactobacillus maltaromicus,
Lactobacillus manihotivorans, Lactobacillus mucosae, Lactobacillus
murinus, Lactobacillus oris, Lactobacillus panis, Lactobacillus
paracasei, Lactobacillus paracasei subsp. pseudoplantarum,
Lactobacillus paraplantarum, Lactobacillus pentosus, Lactobacillus
plantarum, Lactobacillus pontis, Lactobacillus reuteri,
Lactobacillus rhamnosus, Lactobacillus niminis, Lactobacillus sake,
Lactobacillus salivarius, Lactobacillus salivarius subsp.
salicinius, Lactobacillus salivarius subsp. salivarius,
Lactobacillus sanfranciscensis, Lactobacillus sharpeae,
Lactobacillus thermophilus, Lactobacillus vaginalis, Lactobacillus
vermiforme, Lactobacillus zeae.
[0203] In yet a further aspect, the present invention provides
methods for modifying the concentration, composition and/or
activity of a polypeptide in a host organism, such as a microbe,
comprising stably incorporating a genetic construct of the present
invention into the genome of the host organism by transforming the
host organism with such a genetic construct. The genetic constructs
of the present invention may be used to transform a variety of
organisms.
[0204] Thus, in yet another aspect, transgenic cells comprising the
genetic constructs of the present invention are provided, together
with organisms, such as microbes, comprising such transgenic cells,
and products and progeny of such microbes. Techniques for stably
incorporating genetic constructs into the genome of target
organisms are well known in the art. Once the cells are
transformed, cells having the genetic construct incorporated in
their genome are selected. Transgenic cells may then be cultured in
an appropriate medium, using techniques well known in the art.
[0205] Polynucleotides of the present invention may also be used to
specifically suppress gene expression by methods such as RNA
interference (RNAi), which may also include cosuppression and
quelling. This and other techniques of gene suppression are well
known in the art. A review of this technique is found in Science
288:1370-1372, 2000. Traditional methods of gene suppression,
employing antisense RNA or DNA, operate by binding to the reverse
sequence of a gene of interest such that binding interferes with
subsequent cellular processes and thereby blocks synthesis of the
corresponding protein. RNAi also operates on a post-transcriptional
level and is sequence specific, but suppresses gene expression more
efficiently.
[0206] Studies have demonstrated that one or more ribonucleases
specifically bind to and cleave double-stranded RNA into short
fragments. The ribonuclease(s) remains associated with these
fragments, which in turn specifically bind to complementary mRNA,
i.e. specifically bind to the transcribed mRNA strand for the gene
of interest. The mRNA for the gene is also degraded by the
ribonuclease(s) into short fragments, thereby obviating translation
and expression of the gene. Additionally, an RNA polymerase may act
to facilitate the synthesis of numerous copies of the short
fragments, which exponentially increases the efficiency of the
system. A unique feature of this gene suppression pathway is that
silencing is not limited to the cells where it is initiated. The
gene-silencing effects may be disseminated to other parts of an
organism and even transmitted through the germ line to several
generations.
[0207] Specifically, polynucleotides of the present invention are
useful for generating gene constructs for silencing specific genes.
Polynucleotides of the present invention may be used to generate
genetic constructs that encode a single self-complementary RNA
sequence specific for one or more genes of interest. Genetic
constructs and/or gene-specific self-complementary RNA sequences
may be delivered by any conventional method known in the art.
Within genetic constructs, sense and antisense sequences flank an
intron sequence arranged in proper splicing orientation making use
of donor and acceptor splicing sites. Alternative methods may
employ spacer sequences of various lengths rather than discrete
intron sequences to create an operable and efficient construct.
During post-transcriptional processing of the gene construct
product, intron sequences are spliced-out, allowing sense and
antisense sequences, as well as splice junction sequences, to bind
forming double-stranded RNA. Select ribonucleases bind to and
cleave the double-stranded RNA, thereby initiating the cascade of
events leading to degradation of specific mRNA gene sequences, and
silencing specific genes. Alternatively, rather than using a gene
construct to express the self-complementary RNA sequences, the
gene-specific double-stranded RNA segments are delivered to one or
more targeted areas to be internalized into the cell cytoplasm to
exert a gene silencing effect.
[0208] Using this cellular pathway of gene suppression, gene
function may be studied and high-throughput screening of sequences
may be employed to discover sequences affecting gene expression.
Additionally, genetically modified microbes and higher order
organisms may be generated.
[0209] In another aspect, the present invention provides methods
for using one or more of the inventive polypeptides or
polynucleotides to treat disorders in a mammal, such as a
human.
[0210] In this aspect, the polypeptide or polynucleotide is
generally present within a composition, such as a pharmaceutical or
immunogenic composition. Pharmaceutical compositions may comprise
one or more polypeptides, each of which may contain one or more of
the above sequences (or variants thereof), and a physiologically
acceptable carrier. Immunogenic compositions may comprise one or
more of the above polypeptides and an immunostimulant, such as an
adjuvant or a liposome, into which the polypeptide is
incorporated.
[0211] Alternatively, a composition of the present invention may
contain DNA encoding one or more polypeptides described herein,
such that the polypeptide is generated in situ. In such
compositions, the DNA may be present within any of a variety of
delivery systems known to those of ordinary skill in the art,
including nucleic acid expression systems, and bacterial and viral
expression systems. Appropriate nucleic acid expression systems
contain the necessary DNA sequences for expression in the patient
(such as a suitable promoter and terminator signal). Bacterial
delivery systems involve the administration of a bacterium (such as
Bacillus Calmette-Guerin) that expresses an immunogenic portion of
the polypeptide on its cell surface. In a preferred embodiment, the
DNA may be introduced using a viral expression system (e.g.,
vaccinia or other poxvirus, retrovirus, or adenovirus), which may
involve the use of a non-pathogenic, or defective, replication
competent virus. Techniques for incorporating DNA into such
expression systems are well known in the art. The DNA may also be
"naked," as described, for example, in Ulmer et al., Science
259:1745-1749, 1993 and reviewed by Cohen, Science 259:1691-1692,
1993. The uptake of naked DNA may be increased by coating the DNA
onto biodegradable beads, which are efficiently transported into
the cells.
[0212] While any suitable carrier known to those of ordinary skill
in the art may be employed in the pharmaceutical compositions of
this invention, the type of carrier will vary depending on the mode
of administration. For parenteral administration, such as
subcutaneous injection, the carrier preferably comprises water,
saline, alcohol, a lipid, a wax or a buffer. For oral
administration, any of the above carriers or a solid carrier, such
as mannitol, lactose, starch, magnesium stearate, sodium
saccharine, talcum, cellulose, glucose, sucrose, and magnesium
carbonate, may be employed. Biodegradable microspheres (e.g.,
polylactic galactide) may also be employed as carriers for the
pharmaceutical compositions of this invention. Suitable
biodegradable microspheres are disclosed, for example, in U.S. Pat.
Nos. 4,897,268 and 5,075,109.
[0213] Any of a variety of adjuvants may be employed in the
immunogenic compositions of the present invention to
non-specifically enhance an immune response. Most adjuvants contain
a substance designed to protect the antigen from rapid catabolism,
such as aluminum hydroxide or mineral oil, and a non-specific
stimulator of immune responses, such as lipid A, Bordetella
pertussis or M. tuberculosis. Suitable adjuvants are commercially
available as, for example, Freund's Incomplete Adjuvant and
Freund's Complete Adjuvant (Difco Laboratories, Detroit, Mich.),
and Merck Adjuvant 65 (Merck and Company, Inc., Rahway, N.J.).
Other suitable adjuvants include alum, biodegradable microspheres,
monophosphoryl lipid A and Quil A.
[0214] Routes and frequency of administration, as well as dosage,
vary from individual to individual. In general, the inventive
compositions may be administered by injection (e.g., intradermal,
intramuscular, intravenous or subcutaneous), intranasally (e.g., by
aspiration) or orally. In general, the amount of polypeptide
present in a dose (or produced in situ by the DNA in a dose) ranges
from about 1 pg to about 100 mg per kg of host, typically from
about 10 pg to about 1 mg per kg of host, and preferably from about
100 pg to about 1 .mu.g per kg of host. Suitable dose sizes will
vary with the size of the patient, but will typically range from
about 0.1 ml to about 2 ml.
[0215] The following examples are offered by way of illustration
and not by way of limitation.
EXAMPLE 1
Isolation and Characterization of DNA Sequences from Lactobacillus
rhamnosus Strain HN001
[0216] Lactobacillus rhamnosus strain HN001 DNA libraries were
constructed and screened as follows.
[0217] DNA was prepared in large scale by cultivating the bacteria
in 2.times.100 ml cultures with 100 ml MRS broth (Difco
Laboratories, Detroit Mich.) and 1 ml Lactobacillus glycerol stock
as inoculum, placed into 500 ml culture flasks and incubated at
37.degree. C. for approx. 16 hours with shaking (220 rpm).
[0218] The cultures were centrifuged at 3500 rpm for 10 min to
pellet the cells. The supernatant was removed and the cell pellet
resuspended in 40 ml fresh MRS broth and transferred to clean 500
ml culture flasks. Fresh MRS broth (60 ml) was added to bring the
volume back to 100 ml and flasks were incubated for a further 2 hrs
at 37.degree. C. with shaking (220 rpm). The cells were pelleted by
centrifugation (3500 rpm for 10 min) and supernatant removed. Cell
pellets were washed twice in 20 ml buffer A (50 mM NaCl, 30 mM Tris
pH 8.0, 0.5 mM EDTA).
[0219] Cells were resuspended in 2.5 ml buffer B (25% sucrose
(w/v), 50 mM Tris pH 8.0, 1 mM EDTA, 20 mg/ml lysozyme, 20 .mu.g/ml
mutanolysin) and incubated at 37.degree. C. for 45 min. Equal
volumes of EDTA (0.25 M) was added to each tube and allowed to
incubate at room temperature for 5 min. 20% SDS (1 ml) solution was
added, mixed and incubated at 65.degree. C. for 90 min. 50 .mu.l
Proteinase K (Gibco BRL, Gaithersburg, Md.) from a stock solution
of 20 mg/ml was added and tubes incubated at 65.degree. C. for 15
min.
[0220] DNA was extracted with equal volumes of
phenol:chloroform:isoamylalcohol (25:24:1). Tubes were centrifuged
at 3500 rpm for 40 min. The aqueous phase was removed to clean
sterile Oak Ridge centrifuge tubes (30 ml). Crude DNA was
precipitated with an equal volume of cold isopropanol and incubated
at -20.degree. C. overnight.
[0221] After resuspension in 500 .mu.l TE buffer, DNase-free RNase
was added to a final concentraion of 100 .mu.g/ml and incubated at
37.degree. C. for 30 min. The incubation was extended for a further
30 min after adding 100 .mu.l Proteinase K from a stock solution of
20 mg/ml. DNA was precipitated with ethanol after a
phenol:chloroform:isoamylalcohol (25:24:1) and a
chloroform:isoamylalcohol (24:1) extraction and dissolved in 250
.mu.l TE buffer.
[0222] DNA was digested with Sau3AI at a concentration of 0.004
U/.mu.g in a total volume of 1480 .mu.l, with 996 .mu.l DNA, 138.75
.mu.l 10.times. REACT 4 buffer and 252.75 .mu.l H.sub.2O. Following
incubation for 1 hour at 37.degree. C., DNA was divided into two
tubes. 31 .mu.l 0.5 M EDTA was added to stop the digestion and 17
.mu.l samples were taken for agarose gel analysis. Samples were put
into 15 ml Falcon tubes and diluted to 3 ml for loading onto
sucrose gradient tubes.
[0223] Sucrose gradient size fractionation was conducted as
follows. 100 ml of 50% sucrose (w/v) was made in TEN buffer (1M
NaCl, 20 mM Tris pH 8.0, 5 mM EDTA) and sterile filtered. Dilutions
of 5, 10, 15, 20, 25, 30, 35 and 40% sucrose were prepared and
overlaid carefully in Beckman Polyallomer tubes, and kept overnight
at 4.degree. C. TEN buffer (4 ml) was loaded onto the gradient,
with 3 ml of DNA solution on top. The gradients were centrifuged at
26K for 18 hours at 4.degree. C. in a Centricon T-2060 centrifuge
using a Kontron TST 28-38 rotor. After deceleration without braking
(approx. 1 hour), the gradients were removed and fractions
collected using an auto Densi-Flow (Haake-Buchler Instruments).
Agarose gel was used to analyse the fractions. The best two pairs
of fractions were pooled and diluted to contain less than 10%
sucrose. TEN buffer (4 ml) was added and DNA precipitated with 2
volumes of 100% ice cold ethanol and an overnight incubation at
-20.degree. C.
[0224] DNA pellets were resuspended in 300 .mu.l TE buffer and
re-precipitated for approx. 6 hours at -20.degree. C. after adding
1/10 volume 3 M NaOAC pH 5.2 and 2 volumes of ethanol. DNA was
pelleted at top speed in a microcentrifuge for 15 min, washed with
70% ethanol and pelleted again, dried and resuspended in 10 .mu.l
TE buffer.
[0225] DNA was ligated into dephosphorylated BamHI-digested
pBluescript SK II.sup.+ and dephosphorylated BamHI-digested lambda
ZAP Express using standard protocols. Packaging of the DNA was done
using Gigapack III Gold packaging extract (Stratagene, La Jolla,
Calif.) following the manufacturer's protocols. Packaged libraries
were stored at 4.degree. C.
[0226] Mass excision from the primary packaged phage library was
done using XL1-Blue MRF' cells and ExAssist Helper Phage
(Stratagene). The excised phagemids were diluted with NZY broth
(Gibco BRL, Gaithersburg, Md.) and plated out onto LB-kanamycin
agar plates containing
5-bromo-4-chloro-3-indolyl-.beta.-D-galactoside (X-gal) and
isopropylthio-beta-galactoside (IPTG). After incubation, single
colonies were picked for PCR size determination before the most
suitable libraries were selected for sequencing.
[0227] Of the colonies picked for DNA minipreps and subsequent
sequencing, the large majority contained an insert suitable for
sequencing. Positive colonies were cultured in LB broth with
kanamycin or ampicillin depending on the vector used, and DNA was
purified by means of rapid alkaline lysis minipreps (solutions:
Qiagen, Venlo, The Netherlands; clearing plates, Millipore,
Bedford, Mass.). Agarose gels at 1% were used to screen sequencing
templates for chromosomal contamination and concentration. Dye
terminator sequencing reactions were prepared using a Biomek 2000
robot (Beckman Coulter, Inc., Fullerton, Calif.) and Hydra 96
(Robbins Scientific, Sunnyvale, Calif.) for liquid handling. DNA
amplification was done in a 9700 PCR machine (Perkin Elmer/Applied
Biosystems, Foster City, Calif.) according to the manufacturer's
protocol.
[0228] The sequence of the genomic DNA fragments were determined
using a Perkin Elmer/Applied Biosystems Division Prism 377
sequencer. The DNA clones were sequenced from the 5' and/or 3' end,
and are identified as SEQ ID NO: 1-33.
[0229] This example not only shows how the sequences were obtained,
but also that a bacterium (E. coli) can be stably transformed with
any desired DNA fragment of the present invention for permanent
marking for stable inheritance.
[0230] The determined DNA sequences were compared to and aligned
with known sequences in the public databases. Specifically, the
polynucleotides identified in SEQ ID NO: 1-33 were compared to
polynucleotides in the EMBL database as of the end of July 2001,
using BLASTN algorithm Version 2.0.11 [Jan. 20, 2000], set to the
following running parameters: Unix running command: blastall -p
blastn -d embldb -e 10 -G 0 -E 0 -r 1 -v 30 -b 30 -i queryseq -o
results. Multiple alignments of redundant sequences were used to
build up reliable consensus sequences. Based on similarity to known
sequences, the isolated polynucleotides of the present invention
identified as SEQ ID NO: 1-33 were identified as encoding
polypeptides.
[0231] Numerous of the sequences provided in SEQ ID NO: 1-33 were
found to be "full-length" and to contain open reading frames
(ORFs). These full-length sequences, the location of ORFs (by
nucleotide position) contained within these sequences, and the
corresponding amino acid sequences are provided in Table 1B below.
TABLE-US-00003 TABLE 1B Polynucleotide Polypeptide SEQ ID NO: ORF
SEQ ID NO: 1 1,128-3,026 42 2 196-924 43 3 145-1,098 44 4 82-348 45
5 103-1,239 46 6 122-934 47 7 94-759 48 7 807-1,676 49 8 126-1,232
50 9 181-1,086 51 10 23-1,510 52 11 209-1,381 53 12 1-1,179 54 13
1-650 55 14 1-768 56 15 163-1,167 57 16 64-888 58 17 47-1,219 59 18
45-1,295 60 19 175-1,173 61 20 48-1,352 62 21 1,705-2,280 63 22
60-1,250 64 23 71-1,093 65 24 120-1,074 66 25 86-934 67 26
2,209-7,434 68 27 74-4,465 69 28 821-6,460 70 29 141-1,022 71 30
83-607 72 31 27-875 73 32 96-881 74 33 1-1,191 75
[0232] The polynucleotide and polypeptide sequences of SEQ ID NO:
1-33 and 42-75 were compared to sequences in the EMBL and SwissProt
databases using the BLAST computer algorithms version 2.0.11 [Jan.
20, 2000]. Comparisons of polynucleotide sequences provided in SEQ
ID NO: 1-33 to sequences in the EMBL database were made as of
August 2001. Comparisons of amino acid sequences provided in SEQ ID
NO: 42-75 to sequences in the SwissProt database were made as of
August 2001. Analysis of six-frame translations of the
polynucleotides of SEQ ID NO: 1-33 were also compared to and
aligned with the six-frame translations of polynucleotides in the
SwissProt database using the BLASTX program.
BLASTN Polynucleotide Analysis
[0233] The polynucleotide sequences of SEQ ID NO: 1-3, 5-23 and
25-33 were determined to have less than 50% identity, determined as
described above, to sequences in the EMBL database using the
computer algorithm BLASTN, as described above. The polynucleotide
sequence of SEQ ID NO: 24 was determined to have less than 90%
identity, determined as described above, to sequences in the EMBL
database using BLASTN, as described above. The polynucleotide
sequence of SEQ ID NO: 4 was determined to have less than 98%
identity, determined as described above, to sequences in the EMBL
database using BLASTN, as described above.
BLASTP Amino Acid Analysis
[0234] The amino acid sequences of SEQ ID NO: 43, 45-47, 51-53, 58,
60, 61, 63, 67, 68, 70, 71, 73 and 74 were determined to have less
than 50% identity, determined as described above, to sequences in
the SwissProt database using the BLASTP computer algorithm as
described above. The amino acid sequences of SEQ ID NO: 48-50,
55-56, 62, 64, 66, 69, 72 and 75 were determined to have less than
75% identity, determined as described above, to sequences in the
SwissProt database using the BLASTP computer algorithm as described
above. The amino acid sequences of SEQ ID NO: 57 and 65 were
determined to have less than 90% identity, determined as described
above, to sequences in the SwissProt database using the computer
algorithm BLASTP, as described above. The amino acid sequence of
SEQ ID NO: 54 and 59 was determined to have less than 98% identity,
determined as described above, to sequences in the SwissProt
database using the computer algorithm BLASTP, as described
above.
BLASTX Analysis
[0235] The six-frame translations of the polynucleotide sequences
of SEQ ID NO: 1-33 were compared to and aligned with six-frame
translations of polynucleotides in the EMBL database using the
BLASTX program version 2.0.11 [Jan. 20, 2000] set to the following
running parameters: Unix running command: blastall -p blastn -d
embldb -e 10 -G 0 -E 0 -v 30 -b 30 -i queryseq -o results. The
translations of the polynucleotides of SEQ ID NO: 1, 3, 5-9, 11-19,
21 and 25-32 were determined to have less than 50% identity,
determined as described above, to translations of polynucleotides
in the EMBL database using the computer algorithm BLASTX. The
translations of the polynucleotides of SEQ ID NO: 2, 4, 10, 20, 22,
23 and 33 were determined to have less than 75% identity,
determined as described above, to translations of polynucleotides
in the EMBL database using the computer algorithm BLASTX. The
translations of the polynucleotide sequence of SEQ ID NO: 24 was
determined to have less than 90% identity, determined as described
above, to translations of polynucleotides in the EMBL database
using the computer algorithm BLASTX.
EXAMPLE 2
Isolation and Characterization of Peptidase from L. rhamnosus
[0236] The full-length gene sequence of a peptidase believed to be
related to pepO, and referred to herein as "pepO" from L. rhamnosus
strain HN001 (given in SEQ ID NO: 1 and shown in FIG. 80) was
isolated essentially as described in Example 1. Primers were
designed to this sequence and employed to amplify pepO from L.
rhamnosus HN001 using standard PCR methodology. PepO was cloned in
the vector pTRKH2 (obtained from Dr Todd Klaenhammer, North
Carolina State University, North Carolina, USA) and transformed
into E. coli. Competent cells of L. rhamnosus HN001 were
transformed with the pTRKH2+pepO construct to overexpress the gene
in strain HN001. The amino acid sequence of the expressed protein
is provided in SEQ ID NO: 42 and shown in FIG. 81.
[0237] Cell extracts of the HN001 strain constructs with enhanced
levels of the peptidase enzyme showed enhanced enzyme activity on
the casein peptide, .alpha..sub.S1-casein(1-17). Specifically,
.alpha..sub.S1-casein(1-17) was incubated with non-transformed
strain HN001 (referred to as DR20 WT) and strain HN001 transformed
with the pepO construct described above (referred to as DR20 PepO:1
and DR20 PepO:4). HPLC separation of the resulting peptide products
was performed using a Vydac reverse phase C18 column, 4.6
mm.times.250 mm. The solvent system was solvent A, 0.1% TFA in
water, solvent B, 0.08% TFA in acetonitrile and the gradient
employed was 15-40% solvent B over 20 minutes. A major peak was
observed at 11 minutes, together with other non-identified minor
peaks corresponding to hydrolysis products of the original
substrate.
[0238] With non-transformed HN001 (DR 20 WT), the major peak of
unhydrolysed .alpha..sub.s1-casein(1-17) had a height of
approximately 250 mAU. With each of the two transformed strains of
HN001 (DR 20 PepO:1 and DR 20 PepO:4) the major peak of
unhydrolysed .alpha..sub.si-casein(1-17) had a height of
approximately 150 mAU, demonstrating that HN001 transformed with
the pepO construct has enhanced peptidase activity compared to
non-transformed HN001.
[0239] The peptidase of SEQ ID NO: 42 was not active on bradykinin,
a standard substrate for measuring pepO activity (Pritchard et al.,
Microbiol. 140:923-30,1994). The enzyme of SEQ ID NO: 42 thus has a
specificity that is significantly different from the homologous
enzyme from Lactococcus.
[0240] The polypeptide of SEQ ID NO: 42 and the polynucleotide of
SEQ ID NO: 1 have utility in processing food products to develop
new characteristics in food products, and as supplements and
additives to food products, including cheese and hydrolyzed milk
protein products. This enzyme may also be used to develop non-food
products. The attributes conferred by this enzyme, and the
applications for use of this enzyme, include: flavor and aroma
enhancement; removal of bitter peptides and undesirable flavors;
nutritional enhancement; enhanced texture and functionality;
production of bioactive peptides; and removal of allergenic
peptides or proteins.
[0241] These attributes may be produced in food, such as dairy
products, (including milk protein hydrolysates and cheese) by
directed activity of the enzyme, introduced in a bacterial strain
(including strain HN001 or starter cultures) comprising a
polynucleotide of SEQ ID NO: 1, or as an enzyme preparation
comprising a polypeptide of SEQ ID NO: 42.
EXAMPLE 3
Isolation and Characterisation of an Esterase from L. rhamnosus
HN001
[0242] The full-length polynucleotide sequence of an esterase gene,
given in SEQ ID NO: 3, was used to amplify the AA 7 esterase gene
from L. rhamnosus HN001 using standard PCR methodology. FIG. 1
shows the nucleotide sequence of L. rhamnosus strain HN001 esterase
gene AA 7, with the ATG initiation and translation stop codons
shown boxed.
[0243] The AA7 esterase gene sequence was cloned into the
pUniBlunt/V5-HisTopo vector (Invitrogen, Auckland, NZ) and
transformed into the E. coli strain PIR1 OneShot competent cells
(Invitrogen). To construct an expression plasmid the
pUniBlunt/V5-HisTopo vector construct was recombined with the
pBad/Thio-E vector (Invitrogen) and transformed into the E. coli
strain TOP10 competent cells (Invitrogen) according to the
manufacturer's instructions. The gene product was therefore cloned
as a fusion protein tagged with a His-patch polypeptide and
thioredoxin protein. The esterase fusion protein was expressed and
purified using a Ni-NTA column (Qiagen, Auckland, NZ) according to
the manufacturer's instructions and protein expression checked by
SDS-PAGE. The amino acid sequence of the esterase AA7 polypeptide
is given in SEQ ID NO: 44 and shown in FIG. 2.
[0244] Esterase activity was assessed using the para-nitrophenyl
butyrate assay as described in Lee and Lee, Biotech. Appl. Biochem.
11:552-563, 1989, with some modifications. Briefly, esterase
activity was measured spectrophotometrically using p-nitrophenyl
butyrate (Sigma Chemical Co., St Louis, Mo.) as substrate.
Substrate was prepared by sonicating 1 ml of 50 mM methanolic
p-nitrophenyl butyrate in 18 ml 50 mM sodium phosphate buffer (pH
7.5). Aliquots of 1.9 ml were placed in cuvettes, allowed to
stabilize at 30.degree. C., and between 5 and 20 .mu.l of purified
AA7 esterase added. Changes in optical density (OD) 410 nm were
determined. Based on the results, enzyme activity was calculated,
with one unit (U) of enzyme defined as the amount required to
hydrolyze 1 .mu.mol substrate per minute.
[0245] Esterase activity of the AA7 fusion protein was compared to
the activity of a known esterase enzyme from Streptococcus
thermophilus (ST1, as described in Liu et al., Int. Dairy J.
11:27-35, 2001), a non-esterase HN001 enzyme also expressed as a
His-patch/Thioredoxin fusion protein and buffer-only.
[0246] The results are shown in FIG. 3 and the enzyme activities
are given in Table 1C. FIG. 3 demonstrates the production of ethyl
butyrate from para-nitrophenyl butyrate substrate as measured by
change in OD at 410 nm. As shown in FIG. 3, while buffer only
(.diamond-solid.) and the HN001 non-esterase fusion protein
(.circle-solid.) showed minimal esterase activity, the ST1 esterase
from Streptococcus thermophilus (.sigma.) and the AA7 esterase
fusion protein (.nu.) showed strong activity. Thus, the AA7
esterase fusion protein showed strong esterase activity compared to
the positive control, and negligible amounts of esterase was
produced by the two negative controls (buffer-only and the
non-esterase fusion protein). TABLE-US-00004 TABLE 1C Esterase
activity of the AA7 fusion protein Enzyme activity Protein .DELTA.
OD.sub.410/min (.mu.mol/min/ml) AA7 fusion protein 0.41 3.7 ST1
esterase control 0.49 4.0 Non-esterase control 0.05 0.4 Buffer-only
control 0.02 0.2
[0247] The esterase activity exhibited by the AA7 fusion protein
was not due to background hydrolysis of the substrate as the
buffer-only control showed little or no activity. The specific
enzyme activity of the His-patch/Thio/AA7 fusion protein was 1.42
.mu.mol/min/mg protein compared with 0.03 .mu.mol/min/mg for the
non-esterase fusion protein, showing an almost 50-fold difference
in esterase activity. Therefore, AA7 esterase activity was not due
to the His-patch/Thioredoxin fusion protein tag.
[0248] The dose-response of the AA7 fusion protein was determined
by comparing the esterase activity in a series of three two-fold
dilutions of the purified enzyme. Results are shown in FIG. 4 and
the rate of change in optical density at 410 nm and enzyme
activities given in Table 2. As shown in FIG. 4, while buffer-only
(.lamda.) showed no esterase activity, increasing amounts of
His-patch/Thio/AA7 fusion protein; 5 .mu.l (.upsilon.), 10 .mu.l
(.sigma.) and 20 .mu.l (.nu.) purified protein showed increasing
rates of substrate hydrolysis. The increase in substrate hydrolysis
was proportional to amount of AA7 fusion protein added.
TABLE-US-00005 TABLE 2 Esterase activity for increasing amounts of
AA7 fusion protein Enzyme activity Protein .DELTA. OD.sub.410/min
(.mu.mol/min/ml) 5 .mu.l His-patch/Thio/AA7 0.18 5.9 10 .mu.l
His-patch/Thio/AA7 0.40 6.7 20 .mu.l His-patch/Thio/AA7 0.68 5.6
1.Buffer-only 0.00 0.0
[0249] Results indicated the rate of change in OD at 410 nm was
proportional to the amount of enzyme added, whilst enzyme activity
remained relatively constant. Therefore, esterase activity was
dependent on the amount of esterase AA7 fusion protein present.
[0250] The effect of the serine esterase inhibitor PMSF was
determined using the p-nitrophenyl butyrate assay. Esterase
activity of the AA7 fusion protein was assessed in the presence and
absence of 10 mM PMSF. Results are shown in FIG. 5, and the rate of
change in OD at 410 nm and enzyme activities given in Table 3.
These results indicate that the PMSF inhibitor caused a 17.9%
reduction in the esterase activity of the AA7 fusion protein.
Therefore, AA7 esterase activity was inhibited by the serine
esterase-specific inhibitor PMSF. TABLE-US-00006 TABLE 3 Effect of
PMSF inhibitor on AA7 fusion protein esterase activity Enzyme
activity Protein .DELTA. OD.sub.410/min (.mu.mol/min/ml) AA7 0.68
5.6 AA7 + 10 mM PMSF 0.50 4.1 Buffer-only 0.00 0.0
[0251] The enzymatic breakdown of milk fat plays an essential role
in the development of flavor in cheese. Esterases and lipases
catalyze the lipolysis of milk fat in dairy products such that the
triglycerides are hydrolyzed to free fatty acids and glycerol or
mono- and diglycerides. Although exogenous esterases and lipases of
mammalian and fungal origins are often used to encourage extensive
lipolysis in cheeses, esterases and lipases from cheese
microorganisms may also contribute to lipolysis (reviewed in Fox
and Wallace, Adv. Appl. Microbiol. 45:17-85, 1997 and McSweeney and
Wallace, Lait 80:293-324, 2000).
[0252] The polypeptide of SEQ ID NO: 44 and the polynucleotide of
SEQ ID NO: 3 have utility for processing food products and as
supplements and additives to food products. This esterase may also
be used to develop non-food products. The attributes conferred by
this enzyme include: enhanced flavor and aroma; removal of
off-flavors; altered levels of butyric acid; and altered metabolic
characteristics.
[0253] These attributes may be produced in food, such as dairy
products, by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001 or starter cultures)
comprising a polynucleotide of SEQ ID NO: 3 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 44 or a
variant.
EXAMPLE 4
Isolation and Characterisation of Autoaggregation Protein AG5 from
L. rhamnosus HN001
[0254] The full-length polynucleotide sequence of an
autoaggregation protein from L. rhamnosus strain HN001, given in
SEQ ID NO: 10, was used to amplify the AG5 autoaggregation gene
from L. rhamnosus HN001 DNA using standard PCR methodology. The
full-length polynucleotide sequence of L. rhamnosus strain HN001
autoaggregation gene AG5, showing ATG initiation and translation
stop codons (boxed) is shown in FIG. 6.
[0255] AG5 was then cloned into the EcoRI and SalI sites of the
pGEX-6P-3 expression vector (Pharmacia Biotech, Auckland, NZ) and
transformed into the E. coli strain K12 XL-1Blue competent cells
according to standard laboratory protocols. The amino acid sequence
of the autoaggregation protein AG5 is given in SEQ ID NO: 52 and
shown in FIG. 7.
[0256] The autoaggregation AG5 protein was expressed as a fusion
protein with glutathione S-transferase (GST), isolated and purified
using Glutathione Sepharose 4B resin (Pharmacia Biotech) according
to the manufacturer's instructions and protein expression checked
by SDS-PAGE.
[0257] An assay for aggregation was adapted from Roos et al., Mol.
Microbiol. 32:427-436, 1999. A 10 ml overnight culture of L.
rhamnosus strain HN001 was grown in Man-Rogosa-Sharpe (MRS) broth
(Oxoid) with glucose at a final concentration of 1%. The bacteria
were washed five times in sterile deionized water resulting in loss
of endogenous aggregation. Bacteria were suspended in 1 ml PBS, and
5 .mu.l of the purified the HN001 autoaggregation protein AG5
fusion protein or an irrelevant (ie. non-adhesion) GST-fusion
protein were added to 20 .mu.l aliquots of the bacterial
suspension, and placed on microscope slides. The slides were rocked
gently for 13 min, and aggregation monitored by light
microscopy.
[0258] As shown in FIG. 8A, in the presence of the AG5
autoaggregation GST-fusion protein, L. rhamnosus strain HN001 cells
readily aggregated. FIG. 8A illustrates an image of a
phase-contrast photomicrograph (exposure 1/8 sec, final
magnification.times.240) showing obvious clumping of washed L.
rhamnosus strain HN001 cells in the presence of AG5 autoaggregation
protein tagged with GST. If an irrelevant (ie. non-adhesion)
GST-fusion protein was used, no aggregation occurred. FIG. 8B
illustrates an image of a phase-contrast photomicrograph (exposure
1/8 sec, final magnification.times.240) showing no clumping of
washed L. rhamnosus strain HN001 cells in the presence of an
irrelevant (non-adhesion) HN001 protein tagged with GST, as a
negative control. The GST-tagged HN001 autoaggregation protein AG5
did not form observable clumps in the absence of bacterial cells
(data not shown). Thus, the HN001 autoaggregation protein AG5
mediated the autoaggregation of L. rhamnosus strain HN001
cells.
[0259] The L. rhamnosus strain HN001 is known to have probiotic
properties (see Tannock et al., Appl. Environ. Microbiol.
66:2,578-2,588, 2000; Gill et al., Br. J. Nutr. 83:167-176, 2000;
Prasad et al., Int. Dairy J. 8:993-1002, 1998). In order to
function effectively as probiotic bacteria, L. rhamnosus HN001 must
colonize (at least transiently) the gut environment, as well as
exert positive health benefits, possibly through the exclusion of
pathogenic bacteria from intestinal surfaces. The ability to form
aggregates may be important for both survival in the gut
environment and functionality of L. rhamnosus HN001. The ability to
autoaggregate may assist in the formation of biofilms of L.
rhamnosus HN001 and/or related species, improving the chances of
colonization in the highly competitive gut environment, and then
exclusion of competing bacteria, including pathogens.
[0260] The polypeptide of SEQ ID NO: 52, and the polynucleotide of
SEQ ID NO: 10 have utility for processing food products and as
supplements and additives to food products. This protein may also
be used to develop non-food products. The attributes conferred by
this enzyme include: as a prebiotic to enhance the growth of L.
rhamnosus HN001 or other Lactobacillus species in the gut; as an
agent to promote clumping of L. rhamnosus HN001 in media to improve
survival in industrial processes; and as an agent to help prevent
pathogenic colonization of mucosal surfaces.
[0261] These attributes may be produced in food, such as dairy
products, by directed activity of the autoaggregation protein,
introduced in a bacterial strain (including strain HN001 or starter
cultures) comprising a polynucleotide of SEQ ID NO: 10 or a
variant, or as an enzyme preparation comprising a polypeptide of
SEQ ID NO: 52 or a variant.
EXAMPLE 5
Isolation and Characterisation of Malic Enzyme from L. rhamnosus
HN001
[0262] The full-length polynucleotide sequence of malic enzyme AA5,
given in SEQ ID NO: 2, was amplified from L. rhamnosus HN001 DNA
using standard PCR methodology. The polynucleotide sequence of L.
rhamnosus strain HN001 malic enzyme gene AA5 showing ATG initiation
and translation stop codons (boxed) is shown in FIG. 9. The
upstream and downstream primers were tagged with EcoRI and BamHI
restriction endonuclease recognition sequences to facilitate
cloning.
[0263] The AA5 gene was then cloned into the EcoRI and BamHI sites
of the pGEX-6P-3 expression vector (Pharmacia Biotech) and
transformed into the E. coli strain DH-5.alpha. competent cells
according to standard laboratory protocols. Cells were lysed by
sonication and the AA5 protein, expressed as a GST fusion protein,
was checked by SDS-PAGE analysis. The polypeptide sequence is given
in SEQ ID NO: 43 and shown in FIG. 10.
[0264] Malic enzyme activity was assessed determining the rate of
pyruvate reduction in transformed strains of an E. coli mutant. The
E. coli strain EJ1321 contains multiple mutations that affect both
NAD- and NADP-dependent malic enzyme activity, as well as malic
enzyme regulation (Hansen and Juni, Biochem. Biophys. Res. Comm.
65:559-566, 1975). The strain was obtained from the E. coli Genetic
Stock Centre (Yale University, USA), and transformed with the
pGEX-6P-3 vector construct encoding the HN001 malic enzyme AA5.
Transformants were selected by resistance to 100 .mu.g/ml
ampicillin on M9 plates supplemented with 0.5% glucose (ie.
permissive growth conditions). Ampicillin resistant EJ132 colonies
were picked and grown overnight at 37.degree. C. in 10 ml LB broth
with 100 .mu.g/ml ampicillin and 2 ml then used to inoculate 100 ml
LB broth with 100 .mu.g/ml ampicillin. Cultures were incubated at
37.degree. C. with shaking until OD at 600 nm reached approximately
0.4 whereupon expression of the AA5 protein was induced by the
addition of 100 .mu.l of 1 M IPTG. After a further 4 hours culture
at 37.degree. C. with shaking, 10 ml aliquots were taken, spun at
4000 rpm for 5 min, supernatants removed and cells resuspended in 5
ml PBS. Cultures were then sonicated to produce crude lysates.
[0265] Malic enzyme activity in the crude lysates was measured
according to Kobayashi et al., J. Biol. Chem. 264:3200-3205, 1989,
with modifications. Briefly, total protein content of the lysates
were quantitated using the BCA Protein Assay Reagent kit (Pierce,
Rockford, Ill., USA) according to the manufacturer's instructions,
and 3.5 mg total protein added to 990 .mu.l reaction solution
containing 100 .mu.M MOPS buffer (pH 6.1), 100 .mu.M
Na.sub.2CO.sub.3, 50 .mu.M NADH and 5 .mu.M MgCl.sub.2 (Sigma).
Lastly, 10 .mu.l of 1 M sodium pyruvate was added as substrate and
utilization of NADH measured as change in OD at 340 nm.
[0266] Malic enzyme activity was compared between PBS buffer only
(20 .mu.l), crude lysate from wild type EJ1321 cells (ie.
non-transformed), EJ1321 cells transformed with pGEX-6P-3 encoding
an irrelevant protein (AD5), and EJ1321 cells transformed with
pGEX-6P-3 encoding HN001 malic enzyme AA5 (FIG. 11). Specific
activities are given in Table 4, with a unit of enzyme was defined
as .mu.mole NADH used per min per mg protein.
[0267] The results indicate that although NADH was stable (ie. no
change in OD in the presence of NADH and substrate), some
background NADH reduction occurred when crude lysates from
wild-type EJ1321 cells or EJ1321 cells expressing an irrelevant
protein. Nonetheless, clear malic enzyme activity was observed when
crude lysate from EJ1321 cells expressing AA5 protein was used,
with over 6-fold more enzyme activity compared to background.
Therefore, AA5 encodes a malic enzyme.
[0268] FIG. 11 shows malate enzyme activity measured as rate of
pyruvate reduction by crude lysate preparations of EJ1321 cell
transformants. .nu. PBS buffer-only; .sigma. 3.5 .mu.g wild-type
EJ1321 cell lysate; .upsilon. 3.5 .mu.g cell lysate of EJ1321
transformed with pGEX-6P-3 construct encoding an irrelevant HN001
protein (AD5); .lamda. 3.5 .mu.g cell lysate of EJ1321 transformed
with pGEX-6P-3 construct encoding HN001 malic enzyme AA5.
TABLE-US-00007 TABLE 4 Malic enzyme activity in crude lysates of
transformed and non-transformed EJ1321 cells Enzyme activity Lysate
.DELTA. OD.sub.340/min (.mu.mol/min/ml) Buffer-only 0.00 0.00
Wild-type EJ1321 0.01 2.0 .times. 10.sup.2 EJ1321 with pGEX-6P-3
0.02 4.2 .times. 10.sup.2 encoding an irrelevant protein EJ1321
with pGEX-6P-3 0.12 26.8 .times. 10.sup.2 encoding AA5
[0269] The malic enzyme assay was repeated with increasing amounts
of crude lysate from EJ1321 cells expressing AA5 protein to
determine whether malic enzyme activity was proportional to amount
of AA5 protein present (FIG. 12 and Table 5).
[0270] Results from FIG. 12 and Table 5 indicate that increased
amounts of crude lysate of EJ1321 E. coli strain transformed with
HN001 malic enzyme AA5 led to increased malic enzyme activity.
However, as the amount of substrate became limiting at higher
amounts of lysate, the increases in activity were not strictly
proportional. Nonetheless, these results support the evidence that
AA5 encodes the HN001 malic enzyme.
[0271] FIG. 12 shows data illustrating the effect of increasing
amounts of EJ1321 crude lysate on malic enzyme activity. .nu. 5
.mu.l wild-type EJ1321 cell lysate; .sigma. 5 .mu.l cell lysate of
EJ1321 transformed with pGex-6P-3 encoding AA5; .upsilon. 50 .mu.l
cell lysate of EJ1321 transformed with pGex-6P-3 encoding AA5;
.upsilon. 200 .mu.l cell lysate of EJ1321 transformed with
pGex-6P-3 encoding AA5. TABLE-US-00008 TABLE 5 Malic enzyme
activity with increasing amounts of cell lysate Enzyme activity
Lysate .DELTA. OD.sub.340/min (.mu.mol/min/ml) 5 .mu.l wild-type
EJ1321 0.004 3.2 .times. 10.sup.2 5 .mu.l EJ1321 with pGEX-6P-3
0.032 25.8 .times. 10.sup.2 encoding AA5 2.50 .mu.l EJ1321 with
pGEX-6P- 0.216 17.3 .times. 10.sup.2 3 encoding AA5 3.200 .mu.l
EJ1321 with pGEX- 0.232 4.6 .times. 10.sup.2 6P-3 encoding AA5
[0272] The NAD-dependent malic enzyme (EC 1.1.1.38) catalyzes
L-malate oxidative decarboxylation and pyruvate reductive
carboxylation (Murai, T. et al, Biochem. Biophys. Res. Comm.
43:875-881, 1971) and is central to citrate metabolism.
[0273] The polypeptide of SEQ ID NO: 43 and the polynucleotide of
SEQ ID NO: 2 have utility for processing food products and as
supplements and additives to food products, as well as in
industrial processing. This malic enzyme may also be used to
develop non-food products and in non-food processing systems. The
attributes conferred by this enzyme include: manipulation of energy
production and growth in particular media; altered survival
characteristics in industrial processes; formation of common
intermediates of various flavor compounds; and lactic acid
production, important for antibacterial effects and acid
tolerance.
[0274] These attributes may be produced in food or in other
environments by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001, or starter cultures)
comprising a polynucleotide of SEQ ID NO: 2 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 43 or a
variant.
EXAMPLE 6
Isolation and Characterisation of Malate Dehydrogenase from L.
rhamnosus HN001
[0275] The full-length polynucleotide sequence of malic enzyme,
given in SEQ ID NO: 9, was amplified from the AG3 malate
dehydrogenase gene from L. rhamnosus HN001 DNA using standard PCR
methodology. FIG. 13 shows the polynucleotide sequence of L.
rhamnosus strain HN001 malate dehydrogenase gene AG3 showing the
TTG initiation and translation stop codons (boxed).
[0276] AG3 was then cloned into the pUniBlunt/V5-HisTopo vector
(Invitrogen) and transformed into the E. coli strain PIR1 OneShot
competent cells (Invitrogen) according to the manufacturer's
instructions. To construct an expression plasmid, the
pUniBlunt/V5-HisTopo vector construct was recombined with the
pBad/Thio-E Echo vector (Invitrogen) and transformed into the E.
coli strain TOP10 competent cells (Invitrogen) according to the
manufacturer's instructions. The AG3 gene product was therefore
cloned as a fusion protein tagged with a His-patch polypeptide and
thioredoxin protein. The fusion protein was expressed and purified
using a Ni-NTA column (Qiagen, Auckland, NZ) according to the
manufacturer's instructions and protein expression checked by
SDS-PAGE. The polypeptide sequence is given in SEQ ID NO: 51 and
shown in FIG. 14.
[0277] Malate dehydrogenase activity was assessed by gene
complementation of the mutant E. coli strain UTH4606 that lacks a
functional malate dehydrogenase gene (Heard et al., J. Bacteriol.
122:329-331, 1975; Shaw et al., Mutation Res., 18:247-250, 1973),
provided by the E. coli Genetic Stock Centre (Yale University,
USA). UTH4606 strain cells cannot utilize malate as a carbon
source, in contrast to wild-type E. coli. pBAD-Thio-E construct
containing the HN001 malate dehydrogenase AG3 gene or empty
pBAD-Thio-E vector was transformed into the UTH4606 E. coli strain
and plated onto M9 media plates containing 100 .mu.g/ml kanamycin
and 0.5% glucose. Transformant colonies were picked, and plated out
onto a series of selective M9 agar plates containing 100 .mu.g/ml
Kanamycin and/or 0.5% glucose or 0.5% malate. Growth of the UTH4606
transformed with pBAD-Thio-E encoding the AG3 protein was compared
with wild-type UTH4606 cells and UTH4606 cells transformed with
empty pBAD-Thio-E vector. Plates were incubated aerobically at
37.degree. C. overnight. Growth was assessed for malate
dehydrogenase complementation.
[0278] Results are shown in Table 6 and indicate that wild-type
UTH780 cells grew on M9 media supplemented with glucose, but not on
M9 media supplemented with malate, or on media containing
Kanamycin. This confirmed the phenotype of the UTH780 strain of
being unable to utilize malate as a carbon source due to the loss
of malate dehydrogenase function. Transformation with empty
pBAD/Thio-E vector allowed growth on media containing Kanamycin,
but did not complement the malate dehydrogenase mutation.
Transformation with pBAD/Thio-E encoding the HN001 malate
dehydrogenase AG3 allowed growth on Kanamycin, indicating the
presence of the plasmid, and on malate, indicating that the AG3
protein complemented the E. coli malate dehydrogenase deficiency.
Therefore, the HN001 protein AG3 has malate dehydrogenase activity.
TABLE-US-00009 TABLE 6 Results of LB agar plate assay for malate
dehydrogenase gene complementation M9 agar plates containing: E.
coli UTH780 0.5% 0.5% Glucose + 0.5% Malate + 0.5% transformed
with: Glucose Kanamycin Kanamycin Malate -- + - - - pBAD/Thio-E + +
- - pBAD/Thio-E + + + + encoding AG3 +: growth; -: no growth
[0279] Malate dehydrogenase (EC 1.1.1.37) catalyzes the reversible
oxidation of malate to oxaloacetate with the concomitant reduction
of NAD. As lactobacilli appear not to have a functioning Krebs
cycle, the enzyme may be involved in amino acid biosynthesis or
L-malate utilization pathways.
[0280] The polypeptide of SEQ ID NO: 51, and the polynucleotide of
SEQ ID NO: 9 have utility for processing food and other products
and as supplements and additives to food products and in industrial
processing. The attributes conferred by this enzyme include:
manipulation of energy production and growth in particular media;
altered survival characteristics in industrial processes; and
formation of common intermediates of various flavor compounds.
[0281] These attributes may be produced in food products, or in
industrial processing, by directed activity of the enzyme,
introduced in a bacterial strain (including strain HN001, or
starter cultures) comprising a polynucleotide of SEQ ID NO: 9 or a
variant, or as an enzyme preparation comprising a polypeptide of
SEQ ID NO: 51 or a variant.
EXAMPLE 7
Isolation and Characterisation of Dihydrodipicolinate Synthase from
L. rhamnosus HN001
[0282] The full-length polynucleotide sequence of
dihydrodipicolinate synthase from L. rhamnosus HN001, given in SEQ
ID NO: 13 and shown in FIG. 15 with ATG initiation and translation
stop codons (boxed), was used to amplify the AI2
dihydrodipicolinate synthase gene from L. rhamnosus HN001 DNA using
standard PCR methodology. The upstream and downstream primers were
tagged with EcoRI and SalI restriction endonuclease recognition
sequences to facilitate cloning.
[0283] AI2 was then cloned into the EcoRI and SalI sites of the
pGEX-6P-3 expression vector (Pharmacia Biotech) and transformed
into the E. coli strain K12 XL-1Blue competent cells according to
standard laboratory protocols. The dihydrodipicolinate synthase AI2
protein was expressed as a fusion protein with glutathione
S-transferase (GST), bound to Glutathione Sepharose 4B resin
(Pharmacia Biotech), and PreScission protease used to cleave off
dihydrodipicolinate synthase AI2 protein, according to the
manufacturer's instructions. An aliquot of the purified AI2 protein
was checked by SDS-PAGE analysis. The polypeptide sequence is given
in SEQ ID NO: 55 and is shown in FIG. 16.
[0284] Dihydrodipicolinate synthase activity was assessed by gene
complementation of the mutant E. coli strain AT997 deficient in
dihydrodipicolinate synthase gene function (Bukhari and Taylor, J.
Bacteriol. 105:844-854, 1971), provided by the E. coli Genetic
Stock Centre (Yale University, USA). AT997 cells require
diaminopimelic acid (DAP) for growth, in contrast to wild-type E.
coli that is DAP-independent. pGEX-6P-3 construct containing the
HN001 dihydrodipicolinate synthase AI2 gene or empty pGEX-6P-3
vector was transformed into the AT997 E. coli strain. Transformed
AT997 cells were plated onto LB agar plates containing ampicillin
(100 .mu.g/ml) only or ampicillin and 45 .mu.g/ml DAP, at dilutions
designed to allow the visualization of distinct colonies (ie.
<200 colonies/plate). Plates were incubated aerobically at
37.degree. C. overnight and growth assessed as the presence of
distinct colonies.
[0285] Results in Table 7 indicate that while AT997 cells
transformed with either empty pGEX-6P-3 or pGEX-6P-3 containing the
HN001 dihydrodipicolinate synthase AI2 grew in the presence of DAP,
only cells transformed with vector containing AI2 grew without DAP.
Therefore, the HN001 dihydrodipicolinate synthase protein AI2
complemented the dihydrodipicolinate synthase gene mutation in E.
coli strain AT997. TABLE-US-00010 TABLE 7 Results of LB agar plate
assay for dihydrodipicolinate synthase gene complementation LB agar
plates containing: E. coli AT997 transformed with: Ampicillin and
DAP Ampicillin only pGEX-6P-3 + - pGEX-6P-3 with AI2 + + +: growth;
-: no growth
[0286] Dihydrodipicolinate synthase (EC 4.2.1.52) converts
L-aspartate 4-semialdehyde and pyruvate to
1-2,3-dihydrodipicolinate as part of the lysine biosynthesis
pathway. L-aspartate 4-semialdehyde is also the first step of the
glycine, serine and threonine metabolic pathways.
[0287] The polypeptide of SEQ ID NO: 55 and the polynucleotide of
SEQ ID NO: 13 have utility for processing food products, as
additives for industrial processing, and in the commercial
production of lysine or intermediates. The attributes conferred by
this enzyme include: altered amino acid content, with important
flavor and metabolic impacts; commercial production of lysine or
intermediates; manipulation of energy production and growth in
particular media; and altered survival characteristics in
industrial processes.
[0288] These attributes may be produced in food products and used
in food and other types of industrial processing, by directed
activity of the enzyme, introduced in a bacterial strain (including
strain HN001, or starter cultures) comprising a polynucleotide of
SEQ ID NO: 13 or a variant, or as an enzyme preparation comprising
a polypeptide of SEQ ID NO: 55 or a variant.
EXAMPLE 8
Isolation and Characterisation of Dihydrodipicolinate Reductase
from L. rhamnosus HN001
[0289] The full-length polynucleotide sequence of
dihydrodipicolinate reductase from L. rhamnosus strain HN001, given
in SEQ ID NO: 14 and shown in FIG. 72 with ATG initiation and
translation stop codons (boxed), was used to amplify the AI3
dihydrodipicolinate reductase gene from L. rhamnosus HN001 DNA
using standard PCR methodology. The upstream and downstream primers
were tagged with EcoRI and SalI restriction endonuclease
recognition sequences to facilitate cloning.
[0290] AI3 was then cloned into the EcoRI and SalI sites of the
pGEX-6P-3 expression vector (Pharmacia Biotech) and transformed
into the E. coli strain K12 XL-1Blue competent cells according to
standard laboratory protocols. The polypeptide sequence of
dihydrodipicolinate reductase AI3 is given in SEQ ID NO: 56 and is
shown in FIG. 73. The dihydrodipicolinate reductase AI3 protein was
expressed as a fusion protein with glutathione S-transferase (GST),
bound to Glutathione Sepharose 4B resin (Pharmacia Biotech), and
PreScission protease used to cleave off dihydrodipicolinate
reductase AI3 protein, according to the manufacturer's
instructions. An aliquot of the purified AI3 protein was checked by
SDS-PAGE analysis.
[0291] Dihydrodipicolinate reductase activity was assessed by gene
complementation of the mutant E. coli strain AT999 deficient in
dihydrodipicolinate reductase gene function (Bukhari and Taylor, J.
Bacteriol. 105:844-854, 1971), provided by the E. coli Genetic
Stock Centre (Yale University, USA). AT999 cells require
diaminopimelic acid (DAP) for growth, in contrast to wild-type E.
coli that is DAP-independent. pGEX-6P-3 construct containing the
HN001 dihydrodipicolinate reductase AI3 gene or empty pGEX-6P-3
vector was transformed into the AT999 E. coli strain. Transformed
AT999 cells were plated onto LB agar plates containing ampicillin
(100 .mu.g/ml) only or ampicillin and 45 .mu.g/ml DAP, at dilutions
designed to allow the visualization of distinct colonies (ie.
<200 colonies/plate). Plates were incubated aerobically at
37.degree. C. overnight and growth assessed as the presence of
distinct colonies (Table 8).
[0292] The results in Table 8 indicate that while AT999 cells
transformed with either empty pGEX-6P-3 or pGEX-6P-3 containing the
HN001 dihydrodipicolinate reductase AI3 grew in the presence of
DAP, only cells transformed with vector containing AI3 grew without
DAP. Therefore, the HN001 dihydrodipicolinate reductase protein AI3
complemented the dihydrodipicolinate reductase gene mutation in E.
coli strain AT999. TABLE-US-00011 TABLE 8 Results of LB agar plate
assay for dihydrodipicolinate reductase gene complementation. LB
agar plates containing: E. coli AT999 transformed with: Ampicillin
and DAP Ampicillin only pGEX-6P-3 + - pGEX-6P-3 with AI3 + + +:
growth; -: no growth
[0293] Dihydrodipicolinate reductase (EC 1.3.1.26) converts
L-2,3-dihydro-dipicolinate to L-tetrahydropicolinate as part of the
lysine biosynthesis pathway.
[0294] The polypeptide of SEQ ID NO: 56, and the polynucleotide of
SEQ ID NO: 14 have utility for processing food products, as
additives for industrial processing, and in the commercial
production of lysine or intermediates. The attributes conferred by
this enzyme include: altered amino acid content, with important
flavor and metabolic impacts; commercial production of lysine or
intermediates; manipulation of energy production and growth in
particular media; and altered survival characteristics in
industrial processes.
[0295] These attributes may be produced in food products and used
in food and other types of industrial processing, by directed
activity of the enzyme, introduced in a bacterial strain (including
strain HN001, or starter cultures) comprising a polynucleotide of
SEQ ID NO: 14 or a variant, or as an enzyme preparation comprising
a polypeptide of SEQ ID NO: 56 or a variant.
EXAMPLE 9
Isolation and Characterisation of Aspartate Aminotransferase from
L. rhamnosus HN001
[0296] The full-length gene sequence of aspartate aminotransferase
from L. rhamnosus strain HN001, given in SEQ ID NO: 12 and shown in
FIG. 17 with GTG initiation and translation stop codons (boxed),
was used to amplify the AH9 aspartate aminotransferase gene from L.
rhamnosus HN001 DNA using standard PCR methodology. The upstream
and downstream primers were tagged with EcoRI and SalI restriction
endonuclease recognition sequences to facilitate cloning.
[0297] AH9 was then cloned into the EcoRI and SalI sites of the
pGEX-6P-3 expression vector (Pharmacia Biotech) and transformed
into the E. coli strain K12 XL-1Blue competent cells according to
standard laboratory protocols. The aspartate aminotransferase AH9
protein was expressed as a fusion protein with glutathione
S-transferase (GST), bound to Glutathione Sepharose 4B resin
(Pharmacia Biotech), and PreScission protease used to cleave off
the aspartate aminotransferase AH9 protein, according to the
manufacturer's instructions. An aliquot of the purified AH9 protein
was checked by SDS-PAGE analysis. The polypeptide sequence is given
in SEQ ID NO: 54 and is shown in FIG. 18.
[0298] AH9 activity was assayed according to the previously
published malate dehydrogenase-coupled method (Karmen, J. Clin.
Invest. 34:131-133, 1955) with modifications. Briefly, 1 ml
reaction mixtures containing 100 .mu.mol Tris hydrochloride buffer
(pH 8.0), 100 .mu.mol L-aspartate, 10 .mu.mol of
.alpha.-ketoglutarate, 0.2 .mu.mol NADH, 0.015 .mu.mol pyrodoxal
5'-phosphate (PLP), and 3 .mu.g (3.6 U) malate dehydrogenase (all
chemicals from Sigma Chemical Co.) were incubated at 37.degree. C.
with increasing amounts (0 to 142.5 ng) of the purified HN001
aspartate aminotransferase AH9 protein. The rationale of the assay
is that aspartate aminotransferase converts .alpha.-ketoglutarate
and L-aspartate to oxaloacetate and L-glutamate. The oxaloacetate
is then substrate for the malate dehydrogenase, which oxidizes one
molecule of NADH to NAD.sup.+ for every molecule of oxaloacetate
converted to L-malate. As the first step is rate limiting, the
amount of NADH oxidized in the second step is directly proportional
to the aspartate aminotransferase-dependent production of
oxaloacetate from .alpha.-ketoglutarate in the first step. The
reaction was monitored by the decrease in absorbance at 340 nm, and
results used to calculate the .mu.mol NADH oxidized per minute. One
unit of enzyme was defined as the amount of enzyme that catalyzed
the production of 1 .mu.mol of oxaloacetate per minute at
37.degree. C.
[0299] Results in Table 9 indicate that, while in the absence of
purified HN001 aspartate aminotransferase AH9 protein there was
some background oxidation of NADH, the addition of AH9 protein led
to increased rates of aspartate aminotransferase-dependent NADH
oxidation. Increased amounts of AH9 increased NADH oxidation in a
dose-dependent manner. A similar background rate observed in
reaction mixtures without the addition of AH9 protein was also
observed in reaction mixtures without both AH9 protein and
.alpha.-ketoglutarate substrate (data not shown), indicating that
the background NADH oxidation was not aspartate
aminotransferase-dependent. The addition of 142.5 ng of AH9 protein
led to an over 19-fold increase in NADH oxidation. The activity of
the purified HN001 aspartate aminotransferase AH9 protein was
calculated to be 31 U/mg protein. Therefore, HN001 protein AH9 is
an aspartate aminotransferase. TABLE-US-00012 TABLE 9 Results of
the malate dehydrogenase-coupled aspartate aminotransferase assay.
Concentration of purified HN001 aspartate aminotransferase AH9 NADH
oxidized (ng/ml) (.mu.mol/min/ml) 0 0.20 .times. 10.sup.-3 23.8
0.80 .times. 10.sup.-3 47.5 1.13 .times. 10.sup.-3 71.2 1.61
.times. 10.sup.-3 95.0 1.95 .times. 10.sup.-3 118.8 2.57 .times.
10.sup.-3 142.5 3.82 .times. 10.sup.-3
[0300] .alpha.-Ketoglutarate is an important chemical mediator in
lactic acid bacteria, and the addition of this compound to cheese
curd has positive impacts on cheese flavor (Yvon et al., Int. Dairy
J. 8:889-898, 1998). The formation of .alpha.-ketoglutarate using
L-glutamate as an amino donor, catalysed by aspartate
aminotransferase, is an important pathway in maintaining
intracellular .alpha.-ketoglutarate levels.
[0301] The polypeptide of SEQ ID NO: 54 and the polynucleotide of
SEQ ID NO: 12 have utility for processing food products and as
supplements and additives to food products. This esterase may also
be used to develop non-food products. The attributes conferred by
this enzyme include: altered amino acid content, with important
flavor and metabolic impacts; manipulation of energy production and
growth in particular media; and altered survival characteristics in
industrial processes, including food processing These attributes
may be produced in food, such as dairy products, and in other
industrial processes, by directed activity of the enzyme,
introduced in a bacterial strain (including strain HN001, or
starter cultures) comprising a polynucleotide of SEQ ID NO: 12 or a
variant, or as an enzyme preparation comprising a polypeptide of
SEQ ID NO: 54 or a variant.
EXAMPLE 10
Isolation and Characterisation of Serine Dehydratase subunits
.alpha. and .beta. from L. rhamnosus HN001
[0302] The full-length polynucleotide sequence of serine
dehydratase subunits .alpha. and .beta., given in SEQ ID NO: 7, was
used to amplify the AF8 serine dehydratase cc subunit and AF7
serine dehydratase .beta. subunit from L. rhamnosus HN001 DNA as a
single operon using standard PCR methodology. The polynucleotide
sequence of L. rhamnosus strain HN001 serine dehydratase subunits
.alpha. (AF8) and .beta. (AF7) is shown in FIG. 19, with ATG
translation initiation codons and termination codons shown boxed
for AF8 and shaded for AF7.
[0303] The AF8 serine dehydratase cc subunit and AF7 serine
dehydratase .beta. subunit were amplified from L. rhamnosus HN001
DNA as a single operon using standard PCR methodology. The AF8 and
AF7 genes were cloned in the vector pTRKH2 (obtained from Dr Todd
Klaenhammer, North Carolina State University, North Carolina, USA)
and transformed into E. coli DH5.alpha. cells. Positive
transformants were selected, grown overnight and the plasmid
isolated by standard laboratory techniques. Competent L. rhamnosus
HN001 cells were then transformed with the pTRKH2 construct
containing the HN001 serine dehydratase subunits .alpha. and .beta.
to overexpress the genes in strain HN001. The amino acid sequences
of the expressed proteins AF8 serine dehydratase .alpha. and AF7
serine dehydratase .beta. are given in SEQ ID NO: 49 and 48,
respectively, and shown in FIGS. 22A and 22B, respectively.
[0304] Serine dehydratase enzyme activity was assessed by comparing
serine utilization in liquid cultures of HN001 strain cells
transformed with either the pTRKH2 construct containing the HN001
serine dehydratase or empty pTRKH2 vector only.
[0305] The results shown in FIGS. 20 and 21 indicate that the
presence of the expression plasmid encoding HN001 serine
dehydratase subunits .alpha. (AF8) and .beta. (AF7) significantly
increased the utilization of serine by HN001 strain cells, compared
to cells transformed with empty expression vector only. Therefore
the HN001 genes AF7 and AF8 encode the serine dehydratase enzyme.
FIG. 20 shows the percentage serine utilization by HN001 strain in
liquid culture with 5 mM initial serine concentration: .nu. HN001
transformed with vector only; .upsilon. pTRKH2 construct containing
HN001 serine dehydratase. FIG. 21 shows the percentage serine
utilization by HN001 strain in liquid culture with 12 mM initial
serine concentration: .nu. HN001 transformed with vector only,
.upsilon. pTRKH2 construct containing HN001 serine dehydratase.
[0306] Serine dehydratase (EC 4.2.1.13), comprising .alpha. and
.beta. subunits, catalyzes the irreversible deamination of serine
to pyruvate and ammonia (Ogawa et al., J. Biol. Chem.
264:15818-15822, 1989; Grabowski et al., Trends in Biochem. Sci.
18:297-300, 1993).
[0307] The polypeptides of SEQ ID NO: 48 and 49, and the
polynucleotide of SEQ ID NO: 7 have utility for processing food
products and in other types of industrial processing, and in the
production of ammonia. Applications for the HN001 serine
dehydratase subunits AF7 and AF8 of the present invention include:
energy supply from amino acids present in growth media or
environment; production of ammonia, regarded as a flavor compound;
altered pyruvate levels--pyruvate is a highly reactive compound,
and is important in a number of flavor pathways; and altered
survival characteristics in industrial processes.
[0308] These applications may be implemented by directed activity
of the enzyme, introduced in a bacterial strain (including strain
HN001, or starter cultures) comprising a polynucleotide of SEQ ID
NO: 7 or a variant, or as an enzyme preparation comprising a
polypeptide of SEQ ID NO: 48 and/or 49, or variants.
EXAMPLE 11
Isolation and Characterisation of Histidinol-Phosphate
Aminotransferase from L. rhamnosus HN001
[0309] The full-length polynucleotide sequence of
histidinol-phosphate amino-transferase from L. rhamnosus strain
HN001, given in SEQ ID NO: 8 and shown in FIG. 23 with ATG
initiation and translation stop codons (boxed), was used to amplify
the AG2 histidinol-phosphate aminotransferase gene from L.
rhamnosus HN001 DNA using standard PCR methodology. The upstream
and downstream primers were tagged with EcoRI and BamHI restriction
endonuclease recognition sequences to facilitate cloning.
[0310] AG2 was then cloned into the EcoRI and BamHI sites of the
pGEX-6P-3 expression vector (Pharmacia Biotech) and transformed
into E. coli strain DH-5.alpha. at competent cells according to
standard laboratory protocols. Cells were lysed by sonication and
the presence of AG2 protein, expressed as a GST fusion protein,
checked by SDS-PAGE analysis. The polypeptide sequence of AG2 is
given in SEQ ID NO: 50 and shown in FIG. 24.
[0311] Histidinol-phosphate aminotransferase activity was assessed
by gene complementation of the mutant E. coli strain UTH780 that
lacks a functional his C gene that encodes histidinol-phosphate
aminotransferase (Goldschmidt et al., Genetics, 66:219-229, 1970),
provided by the E. coli Genetic Stock Centre (Yale University,
USA). UTH780 cells require L-histidine for growth, in contrast to
wild-type E. coli that is L-histidine-independent. pGEX-6P-3
construct encoding HN001 histidinol-phosphate aminotransferase AG2
was transformed into the UTH780 E. coli strain and plated onto LB
agar plates containing 100 .mu.g/ml ampicillin.
Ampicillin-resistant transformant colonies were picked and plated
out onto selective media (ie. M9 media plates with and without 100
.mu.g/ml L-histidine, with and without 100 .mu.g/ml ampicillin).
Growth of UTH780 transformed with AG2 was compared with the growth
of wild-type UTH780 cells and UTH780 cells transformed with a
pGex-6P-3 construct encoding a non-histidinol-phosphate
aminotransferase (AE8). Plates were incubated aerobically at
37.degree. C. overnight and growth assessed as the presence of
distinct colonies.
[0312] Results in Table 10 indicate that while wild-type UTH780
cells grew in the presence of histidine, no growth was observed
when ampicillin was added to the media. Therefore, ampicillin
resistance in transformed UTH780 was due to the presence of
pGEX-6P-3 vector. UTH780 cells transformed with either empty
pGEX-6P-3 or pGEX-6P-3 encoding an irrelevant protein (AE9) grew in
the presence of histidine and ampicillin, but remained auxotrophic
for hisitidine, indicating that the H is C phenotype was not
complemented. UTH780 cells transformed with pGEX-6P-3 encoding
HN001 histidinol-phosphate aminotransferase AG2 grew on M9 media
without histidine. Therefore, the AG2 protein complemented the his
C mutation of UTH780 strain E. coli cells. TABLE-US-00013 TABLE 10
Results of M9 agar plate assay for histidinol-phosphate
aminotransferase gene complementation. M9 agar plates containing:
E. coli UTH780 Ampicillin and L- transformed with: L-histidine only
histidine Ampicillin only -- + - - pGEX-6P-3 + + - pGEX-6P-3 + + -
encoding AE9 pGEX-6P-3 + + + encoding AG2 +: growth; -: no
growth
[0313] Histidinol-phosphate aminotransferase (EC 2.6.1.9) catalyzes
the transamination of histidinol phosphate and 2-oxoglutarate to
3-(Imidazol-4-yl)-2-oxopropyl phosphate and glutamate, as the
eighth step in histidine biosynthesis (Martin et al., J. Bio. Chem.
242:1168-1174, 1967). Some lactic acid bacteria are known to
decarboxylate amino acids, such that histidine can be converted to
histamine, which has undesirable physiological effects
(Lonvaud-Funel, FEMS Microb. Lett. 199:9-13, 2001).
[0314] The polypeptide of SEQ ID NO: 50 and the polynucleotide of
SEQ ID NO: 8 have utility for processing food products and as
supplements and additives to food products. This
histidinol-phosphate aminotransferase may also be used to develop
non-food products. The attributes conferred by this enzyme include:
altered levels of particular amino acids, leading to flavor and
metabolic changes; affect aromatic amino acid metabolism, a source
of important flavor compounds; and modulate production of biogenic
amines.
[0315] These attributes may be produced in food, and other
products, by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001, or starter cultures)
comprising a polynucleotide of SEQ ID NO: 8 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 50 or a
variant.
EXAMPLE 12
Isolation and Characterisation of malY-Aminotransferase from L.
rhamnosus HN001
[0316] The full-length polynucleotide sequence of malY
aminotransferase from L. rhamnosus strain HN001, given in SEQ ID
NO: 17 and shown in FIG. 25 with ATG initiation and translation
stop codons (boxed), was used to amplify the AJ6 aminotransferase
gene from L. rhamnosus HN001 DNA using standard PCR methodology.
The upstream and downstream primers were tagged with EcoRI and
BamHI restriction endonuclease recognition sequences to facilitate
cloning.
[0317] AJ6 was then cloned into the EcoRI and BamHI sites of the
pGEX-6P-3 expression vector (Pharmacia Biotech) and transformed
into E. coli strain DH-5.alpha. competent cells according to
standard laboratory protocols. Cells were lysed by sonication and
the presence of AJ6 protein, expressed as a GST fusion protein,
checked by SDS-PAGE analysis. The polypeptide sequence of AJ6 is
given in SEQ ID NO: 59 and shown in FIG. 26.
[0318] A feature of malY-aminotransferases is the ability to
complement mutations of the E. coli cystathione .beta.-lyase
protein metC (Zdych et al., J. Bacteriol. 177:5035-5039, 1995).
Therefore, AJ6 activity was assessed by suppression of the
metC.sup.- phenotype in the E. coli strain CAG18527 (Singer et al.,
Microbiol. Rev. 53:1-24, 1989) provided by the E. coli Genetic
Stock Centre (Yale University, USA). CAG18527 cells require
L-methionine for growth, in contrast to wild-type E. coli that is
L-methionine-independent. A pGEX-6P-3 construct encoding the HN001
aminotransferase AJ6 was transformed into the CAG18527 E. coli
strain and plated onto LB agar plates containing 100 .mu.g/ml
ampicillin. Ampicillin-resistant transformant colonies were picked
and plated out onto selective media (M9 plates with and without 1
mM L-methionine, with and without 5 .mu.g/ml ampicillin). Growth of
the CAG18527 transformed with AJ6 was compared with the growth of
wild-type CAG18527 cells and CAG18527 cells transformed with a
pGEX-6P-3 construct encoding a non-aminotransferase irrelevant
protein. Plates were incubated aerobically at 37.degree. C. for 48
hrs and growth assessed.
[0319] Results in Table 11 indicate that while wild-type CAG18527
cells grew in the presence of methionine, no growth was observed in
the presence of ampicillin. This confirmed the
ampicillin-sensitive, methionine-auxotrophic phenotype of the
CAG18527 strain. CAG18527 cells transformed with either empty
pGEX-6P-3 or pGEX-6P-3 encoding an irrelevant HN001 protein (AC9)
grew in the presence of methionine and ampicillin, but not in the
absence of methionine, indicating that the metC- phenotype was not
suppressed. CAG18527 cells transformed with pGEX-6P-3 encoding
HN001 aminotransferase AJ6 were ampicillin resistant and grew on M9
media without methionine. Therefore, the AJ6 protein suppressed the
metC.sup.- mutation of CAG18527 strain E. coli cells.
TABLE-US-00014 TABLE 11 Results of M9 agar plate assay for
suppression of the metC phenotype. M9 agar plates containing: E.
coli CAG18527 L-methionine Ampicillin and L- transformed with: only
methionine Ampicillin only -- + - - pGEX-6P-3 + + - pGEX-6P-3 + + -
encoding AC9 pGEX-6P-3 + + + encoding AJ6 +: growth; -: no
growth
[0320] The malY/PatB pyridoxal-5'-phosphate-dependent
aminotransferase family (EC 2.6.1.-) appear to have both
aminotransferase and regulatory activities (Mehta and Christen,
Eur. J. Biochem. 203 :373-376, 1993), including the transamination
of methionine and regulation of maltose utilization (Reidl and
Boos, J. Bacteriol. 173:4862-4876, 1991), as well as other
activities (Chu et al., Infect. Imm. 63: 4448-4455, 1995).
[0321] The polypeptide of SEQ ID NO: 59 and the polynucleotide of
SEQ ID NO: 17 have utility for processing food products and as
supplements and additives to food products. This aminotransferase
may also be used to develop non-food products. The attributes
conferred by this enzyme include: altered levels of particular
amino acids, leading to flavor and metabolic changes; altered
expression of catabolite or other regulons; modulation of hemolytic
activity; and probiotic effects.
[0322] These attributes may be produced in food products by
directed activity of the enzyme, introduced in a bacterial strain
(including strain HN001, or starter cultures) comprising a
polynucleotide of SEQ ID NO: 17 or a variant, or as an enzyme
preparation comprising a polypeptide of SEQ ID NO: 59 or a
variant.
EXAMPLE 13
Isolation and Characterisation of malY-Aminotransferase from L.
rhamnosus HN001
[0323] The full-length polynucleotide sequence of a second
malY-aminotransferase from L. rhamnosus strain HN001, given in SEQ
ID NO: 18 and shown in FIG. 27 with ATG initiation and translation
stop codons (boxed), was used to amplify the AJ7 aminotransferase
gene from L. rhamnosus HN001 DNA using standard PCR methodology.
The upstream and downstream primers were tagged with EcoRI and
BamHI restriction endonuclease recognition sequences to facilitate
cloning.
[0324] AJ7 was then cloned into the EcoRI and BamHI sites of the
pGEX-6P-3 expression vector (Pharmacia Biotech) and transformed
into E. coli strain DH-5.alpha. competent cells according to
standard laboratory protocols. Cells were lysed by sonication and
the presence of AJ7 protein, expressed as a GST fusion protein,
checked by SDS-PAGE analysis. The polypeptide sequence of AJ7 is
given in SEQ ID NO: 60 and shown in FIG. 28.
[0325] A feature of malY-aminotransferases is the ability to
complement mutations of the E. coli cystathione .beta.-lyase
protein metC (Zdych et al., J. Bacteriol. 177:5035-5039, 1995).
Therefore, AJ7 activity was assessed by suppression of the
metC.sup.- phenotype in the E. coli strain CAG18527 (Singer et al.,
Microbiol. Rev. 53:1-24, 1989) provided by the E. coli Genetic
Stock Centre (Yale University, USA). CAG18527 cells require
L-methionine for growth, in contrast to wild-type E. coli that is
L-methionine-independent. pGEX-6P-3 construct encoding the HN001
aminotransferase AJ7 was transformed into the CAG18527 E. coli
strain and plated onto LB agar plates containing 100 .mu.g/ml
ampicillin. Ampicillin-resistant transformant colonies were picked
and plated out onto selective media (M9 plates with and without 1
mM L-methionine, with and without 5 .mu.g/ml ampicillin). Growth of
the CAG18527 transformed with AJ7 was compared with the growth of
wild-type CAG18527 cells and CAG18527 cells transformed with a
pGEX-6P-3 construct encoding a irrelevant protein. Plates were
incubated aerobically at 37.degree. C. for 48 hrs and growth
assessed.
[0326] Results in Table 12 indicate that while wild-type CAG18527
cells grew in the presence of methionine, no growth was observed in
the presence of ampicillin. This confirmed the
ampicillin-sensitive, methionine-auxotrophic phenotype of the
CAG18527 strain. CAG18527 cells transformed with either empty
pGEX-6P-3 or pGEX-6P-3 encoding an irrelevant HN001 protein (AC9)
grew in the presence of methionine and ampicillin, but not in the
absence of methionine, indicating that the metC- phenotype was not
suppressed. CAG18527 cells transformed with pGEX-6P-3 encoding
HN001 aminotransferase AJ7 were ampicillin resistant and grew on M9
media without methionine. Therefore, the AJ7 protein suppressed the
metC.sup.- mutation of CAG18527 strain E. coli cells.
TABLE-US-00015 TABLE 12 Results of M9 agar plate assay for
suppression of the metC phenotype. M9 agar plates containing: E.
coli CAG18527 L-methionine Ampicillin and L- transformed with: only
methionine Ampicillin only -- + - - pGEX-6P-3 + + - pGEX-6P-3 + + -
encoding AC9 pGEX-6P-3 + + + encoding AJ7 +: growth; -: no
growth
[0327] The malY/PatB pyridoxal-5'-phosphate-dependent
aminotransferase family (EC 2.6.1.-) appear to have both
aminotransferase and regulatory activities (Mehta and Christen,
Eur. J. Biochem. 203:373-376, 1993), including the transamination
of methionine and regulation of maltose utilization (Reidl and
Boos, J. Bacteriol. 173:4862-4876, 1991), as well as other
activities (Chu et al., Infect. Imm. 63: 4448-4455, 1995).
[0328] The polypeptide of SEQ ID NO: 60 and the polynucleotide of
SEQ ID NO: 18 have utility for processing food products and as
supplements and additives to food products. This aminotransferase
may also be used to develop non-food products. The attributes
conferred by this enzyme include: altered levels of particular
amino acids, leading to flavor and metabolic changes; altered
expression of catabolite or other regulons; modulation of hemolytic
activity; and probiotic effects.
[0329] These attributes may be produced in food, such as dairy
products, by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001, or starter cultures)
comprising a polynucleotide of SEQ ID NO: 18 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 60 or a
variant.
EXAMPLE 14
Isolation and Characterisation of Cystathione .beta.-Lyase from L.
rhamnosus HN001
[0330] The full-length polynucleotide sequence of cystathione
.beta.-lyase from L. rhamnosus strain HN001, given in SEQ ID NO: 5
and shown in FIG. 29 with ATG initiation and translation stop
codons (boxed), was used to amplify the AC8 cystathione
.alpha.-lyase gene from L. rhamnosus HN001 DNA using standard PCR
methodology.
[0331] AC8 was cloned into the pUniBlunt/V5-HisTopo vector
(Invitrogen) and transformed into the E. coli strain PIR1 OneShot
competent cells (Invitrogen). To construct an expression plasmid,
the pUniBlunt/V5-HisTopo vector construct was recombined with the
pBad/Thio-E vector (Invitrogen) and transformed into the E. coli
strain TOP10 competent cells (Invitrogen) according to the
manufacturer's instructions. The AC gene product was therefore
cloned as a fusion protein tagged with a His-patch polypeptide and
thioredoxin protein. The AC8 fusion protein was expressed and
purified using a Ni-NTA column (Qiagen, Auckland, NZ) according to
the manufacturer's instructions and protein expression checked by
SDS-PAGE. The polypeptide sequence of AC8 is given in SEQ ID NO: 46
and shown in FIG. 30.
[0332] Cystathione .beta.-lyase activity was assessed according to
the method of Uren, Methods in Enzymol. 143:483-496, 1987, with
modifications. Briefly, aliquots of the purified AC8-GST fusion
protein were added to 1 ml cuvettes containing 780 .mu.l of 0.1 M
Tris-HCl pH 9.0, 200 .mu.l of 10 mM L-cystathionine, and 20 .mu.l
of 0.1 M potassium phosphate, with pyridoxal-5'-phosphate added to
a final concentration of 20 .mu.M, on ice. Change in OD was
measured at 412 nm over time, and one unit of enzyme defined as the
formation of 1 .mu.mol of mercaptide per minute at 37.degree. C.
Cystathione .beta.-lyase activity of the AC8 fusion protein was
compared with activity of an irrelevant protein
(pBAD/Thio-E/Uni-CAT expression control vector, Invitrogen), and
reactions containing water or Ni-NTA column elution buffer.
[0333] The results are shown in FIG. 31, with rates of change of OD
and enzyme activity given in Table 13. These results indicate that
similar background rates of mercaptide formation were observed in
reactions containing water only, elution buffer only or 10 .mu.l
purified CAT fusion protein. Significantly greater mercaptide
formation was observed in reactions containing 10 .mu.l purified
HN001 cystathione .alpha.-lyase AC8 fusion protein. Therefore, AC8
protein has cystathione .alpha.-lyase activity. FIG. 31 shows
cystathione .beta.-lyase activity measured as rate of mercaptide
formation. .upsilon. 10 .mu.l purified HN001 cystathione
.beta.-lyase AC8 fusion protein; .nu. 10 .mu.l purified CAT fusion
protein; .sigma. 10 .mu.l H.sub.2O only; .lamda. 10 .mu.l elution
buffer only. TABLE-US-00016 TABLE 13 Cystathione .beta.-lyase
activity of AC8 compared with irrelevant protein, H.sub.2O and
elution buffer controls. Enzyme activity Protein .DELTA.
OD.sub.412/min (.mu.mol/min/ml) AC8 fusion protein 0.00328 16.31
CAT fusion protein 0.00242 12.03 H.sub.2O only 0.00232 11.53
Elution buffer-only 0.00233 11.58
[0334] The dose-response of the HN001 cystathione .beta.-lyase
activity AC8 was determined by comparing mercaptide formation in a
series of dilutions of the purified enzyme. Results are shown in
FIG. 32, and the rate of change in optical density and enzyme
activities given in Table 14.
[0335] These results indicate that the increased rate of mercaptide
peptide was proportional to the amount of AC8 fusion protein,
supporting that AC8 encodes HN001 cystathionine .beta.-lyase. FIG.
32 shows the experimentally determined dose-response of the AC8
fusion protein. Cystathione .beta.-lyase activity of increasing
amounts of His-patch/Thio/AC8 fusion protein; 10 .mu.l (.upsilon.),
25 .mu.l (.nu.) and 50 .mu.l (.sigma.) purified protein showed
increasing rates of mercaptide formation. The increase in
mercaptide formation was proportional to amount of AC8 fusion
protein added. TABLE-US-00017 TABLE 14 Cystathione .beta.-lyase
activity in increasing amounts of AC8 protein Amount of purified
AC8 Enzyme activity fusion protein .DELTA. OD.sub.410/min
(.mu.mol/min/ml) 10 .mu.l 0.00319 15.8 25 .mu.l 0.00378 18.8 50
.mu.l 0.00496 24.7
[0336] Cystathionine .beta.-lyase (EC 4.4.1.8) deaminates
cystathionine to L-homocysteine, ammonia and pyruvate (Dwivedi et
al., Biochem. 21:3064-3069, 1982), and may also have active on
L-cystine and related substrates (Uren, Methods in Enzymol.
143:483-486, 1987; Alting et al., Appl. Environ. Microbiol.
61:4037-4042, 1995). Thus, cystathionine .beta.-lyase is involved
in a number of pathways including methionine metabolism and
catabolism of sulphur-containing compounds. L-homocysteine has been
shown to have important health impacts in humans (Nittynen et al.,
Ann. Med. 31:318-326, 1999; Giles et al., Am. Heart J. 139:446-453,
2000).
[0337] The polypeptide of SEQ ID NO: 46 and the polynucleotide of
SEQ ID NO: 5 have utility for processing food products and as
supplements and additives to food products. This lyase may also be
used to develop non-food products. The attributes conferred by this
enzyme include: altered flavor and metabolic characteristics
through changes in levels of particular amino acids; altered levels
of important sulphur-containing flavor compounds; and health
impacts through the modulation of L-homocysteine levels.
[0338] These attributes may be produced in food products by
directed activity of the enzyme, introduced in a bacterial strain
(including strain HN001, or starter cultures) comprising a
polynucleotide of SEQ ID NO: 5 or a variant, or as an enzyme
preparation comprising a polypeptide of SEQ ID NO: 46 or a
variant.
EXAMPLE 15
Isolation and Characterisation of Phosphoenolpyruvate Hydratase
from L. rhamnosus HN001
[0339] HN001 phosphoenolpyruvate hydratase AK4 was isolated by a
series of experiments designed to identify HN001 strain proteins
that were up-regulated in response to physiological stresses
encountered during industrial processes. Cells were subjected to
heat or osmotic shock, proteins radiolabeled with
[.sup.35S]-methionine and [.sup.35S]-cysteine (Amersham, USA), and
cell-free extracts from shocked and non-shocked HN001 cultures
compared by 2-D analysis and N-terminal sequencing as below.
[0340] Shock proteins were radiolabeled according to standard
laboratory methods. Heat shock was performed by incubation at
50.degree. C. on both log phase and stationary phase HN001 strain
cultures, and salt (osmotic) shock on late log phase by HN001
strain cultures by transfer into MRS broth containing 0.6 M sodium
chloride. Immediately after heat or osmotic shock, approximately 5
.mu.Ci ml.sup.-1 each of L-[.sup.35S]-methionine and
L-[.sup.35S]-cysteine were added to the culture medium and
incubated for 30 min, followed by the addition of excess of cold 1
mM L-cysteine hydrochloride and 1 mM L-methionine, and cultures
then placed on ice. Radiolabeled cells were collected by
centrifugation, washed twice in washing buffer (0.1 M Tris-HCl, 1
mM EDTA, pH 7.5) and resuspended in resuspension buffer (10 mM
Tris-HCl, 5 mM MgCl.sub.2, 2 mM PMSF, pH 7.5). About 0.5 ml cell
suspension was mixed with 0.5 g of 0.17-0.18 mm glass beads and
homogenized using Shake-it-Baby (Biospec products). After
homogenization for 25 min, the suspension was centrifuged and the
supernatant was collected. 2-D Gel electrophoresis was performed on
the cell free extract containing 50-75 .mu.g of protein. Excess
chilled methanol was added and kept at -80.degree. C. for 1 hr
followed by centrifugation at 13,000 rpm to collect the pellet. The
pellet was vacuum-dried and resuspended in rehydration buffer (8M
urea, 2% Triton X 100, 0.5% (v/v) IPG buffer (Amersham Pharmacia
Biotech, USA) and few grains of bromophenol blue). Endonuclease
(Sigma) was added (150 U) to the rehydrated sample and incubated at
room temperature for 20 min. The solution was then added to IPG
strips and rehydrated overnight at 20.degree. C. The rehydrated IPG
strips were placed on a flat bed electrophoresis unit (Amersham
Pharmacia Biotech, USA) and focused at 300 Volts for 30 min
followed by 3,000 volts for 4 hrs. The focused strips were
equilibrated (15 min) in equilibration buffer (50 mM Tris-HCl, pH
8.8, 6 M Urea, 30% (v/v) glycerol, 2% (w/v) SDS and few grains
bromophenol blue) containing either dithioerythritol (1.0% w/v) or
iodoacetamide (2.5% w/v). After equilibration, the strips were
placed on the second dimensional (vertical SDS-PAGE homogeneous)
gels a using PROTEAN II xi cell (Bio-Rad). The second dimension was
carried out at 20 mA per plate for 15 min and 40 mA per plate for 4
hrs.
[0341] Gels were then equilibrated in protein transfer buffer (24.8
mM Tris, pH 8.3, 192 mM Glycine and 10% (v/v) methanol) and blotted
on a PVDF membrane using a Trans-blot apparatus (Bio-Rad) at 24
volts overnight at 4.degree. C. PVDF membranes were exposed to
Hyperfilm-.beta.max (Amersham Pharmacia Biotech, USA) for up to two
weeks using standard procedures. Resultant autoradiograms were
scanned using the Fluor-S Multimager system (Bio-Rad) and patterns
compared using PDQuest software. For N-terminal sequencing,
membranes were stained with Coommassie Brilliant Blue R-250. The
desired spots were excised and N-terminal sequencing carried out
using a protein sequencer (Applied BioSystems, Model 476A)
according to standard methods.
[0342] A protein up-regulated by heat and osmotic shock was
N-terminal sequenced and the amino acid sequence is given in SEQ ID
NO: 83. This sequence was used to search an HN001 sequence database
using the TBLASTN program (NCBI) and the corresponding
polynucleotide and polypeptide sequences are given in SEQ ID NO: 20
and 62, and shown in FIGS. 33 and 34, respectively. Similarity
searching using BLAST software revealed closest amino acid sequence
similarity to phosphoenolpyruvate hydratase sequences but with
significant differences.
[0343] Phosphoenolpyruvate hydratase (EC 4.2.1.11) is a glycolytic
pathway enzyme that hydrolyzes 2-phospho-D-glycerate to give
phosphoenolpyruvate (Malmstroem, B. G, The Enzymes, 2nd. Ed.,
Boyer, P. D., Lardy, H., Myrback, K., eds., 5:471-494, 1961).
[0344] The polypeptide of SEQ ID NO: 62 and the polynucleotide of
SEQ ID NO: 20 have utility for processing food products and as
supplements and additives to food products. This hydratase may also
be used to develop non-food products. The attributes conferred by
this enzyme include: enhanced bacterial survival in industrial
processes; improved colonization of human intestinal environment;
and altered metabolic characteristics through changes in
carbohydrate utilization.
[0345] These attributes may be produced in food products by
directed activity of the enzyme, introduced in a bacterial strain
(including strain HN001, or starter cultures) comprising a
polynucleotide of SEQ ID NO: 20 or a variant, or as an enzyme
preparation comprising a polypeptide of SEQ ID NO: 62 or a
variant.
EXAMPLE 16
Isolation and Characterisation of Tagatose Bisphosphate Aldolase
from L. rhamnosus HN001
[0346] HN001 tagatose bisphosphate aldolase AK1 was isolated by a
series of experiments designed to identify HN001 strain proteins
that were up-regulated in response to physiological stresses
encountered during industrial processes. Cells were subjected to
heat or osmotic shock, proteins radiolabeled with
[.sup.35S]-methionine and [.sup.35S]-cysteine (Amersham, USA), and
cell-free extracts from shocked and non-shocked HN001 cultures
compared by 2-D analysis and N-terminal sequencing as described for
Example 15 (HN001 phosphoenolpyruvate hydratase AK4).
[0347] A protein up-regulated by heat and osmotic shock was
N-terminal sequenced and the polypeptide sequence is given in SEQ
ID NO: 81. This was used to search an HN001 sequence database using
the TBLASTN program (NCBI) and the corresponding polynucleotide and
polypeptide sequences are given in SEQ ID NO: 19 and 61, and shown
in FIGS. 35 and 36, respectively. Similarity searching using BLAST
software revealed closest amino acid sequence similarity to
tagatose bisphosphate aldolase sequences but with significant
differences.
[0348] Tagatose bisphosphate aldolase (EC 4.1.2.40) is involved in
the tagatose 6-phosphate pathway of lactose catabolism, and
converts D-tagatose 1,6-bisphosphate to glycerone phosphate and
D-glyceraldehyde 3-phosphate (Anderson and Markwell, Methods in
Enzymol. 90:232-234, 1982).
[0349] The polypeptide of SEQ ID NO: 61 and the polynucleotide of
SEQ ID NO: 19 have utility for processing food and other products,
and as supplements and additives to food products. This aldolase
may also be used to develop non-food products. The attributes
conferred by this enzyme include: enhanced bacterial survival in
industrial processes; improved colonization of human intestinal
environment; and altered metabolic characteristics through changes
in carbohydrate utilization.
[0350] These attributes may be produced in food products or in
supplements, by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001, or starter cultures)
comprising a polynucleotide of SEQ ID NO: 19 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 61 or a
variant.
EXAMPLE 17
Isolation and Characterisation of Phosphoglycerate Kinase from L.
rhamnosus HN001
[0351] HN001 phosphoglycerate kinase AK6 was isolated by a series
of experiments designed to identify HN001 strain proteins that were
up-regulated in response to physiological stresses encountered
during industrial processes. Cells were subjected to heat or
osmotic shock, proteins radiolabeled with [.sup.35S]-methionine and
[.sup.35S]-cysteine (Amersham, USA), and cell-free extracts from
shocked and non-shocked HN001 cultures compared by 2-D analysis and
N-terminal sequencing as described for Example 15 (HN001
phosphoenolpyruvate hydratase AK4).
[0352] A protein up-regulated by heat and osmotic shock was
N-terminal sequenced and the polypeptide sequence is given in SEQ
ID NO: 82. This was used to search an HN001 sequence database using
the TBLASTN program (NCBI) and the corresponding polynucleotide and
polypeptide sequences are given in SEQ ID NO: 22 and 64, and shown
in FIGS. 37 and 38, respectively. Similarity searching using BLAST
software revealed closest amino acid sequence similarity to
phosphoglycerate kinase sequences but with significant
differences.
[0353] Phosphoglycerate kinase (EC 2.7.2.3) is involved in the
glycolysis pathway, and catalyzes the phospho-transfer reaction of
ATP and 3-phospho-D-glycerate to ADP and 3-phospho-D-glyceroyl
phosphate (bacterial enzyme reviewed in Suzuki and Imahori, Methods
in Enzymol. 90:126-130, 1982).
[0354] The polypeptide of SEQ ID NO: 64 and the polynucleotide of
SEQ ID NO: 22 have utility for processing food products, and as
supplements and additives to food products. This kinase may also be
used to develop non-food products. The attributes conferred by this
enzyme include: enhanced bacterial survival in industrial
processes; improved colonization of human intestinal environment;
and altered metabolic characteristics through changes in
carbohydrate utilization.
[0355] These attributes may be produced in food products and
supplements by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001, or starter cultures)
comprising a polynucleotide of SEQ ID NO: 22 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 64 or a
variant.
EXAMPLE 18
Isolation and Characterisation of Triosephosphate isomerase from L.
rhamnosus HN001
[0356] HN001 triosephosphate isomerase AK5 was isolated by a series
of experiments designed to identify HN001 strain proteins that were
up-regulated in response to physiological stresses encountered
during industrial processes. Cells were subjected to heat or
osmotic shock, proteins radiolabeled with [.sup.35S]-methionine and
[.sup.35S]-cysteine (Amersham, USA), and cell-free extracts from
shocked and non-shocked HN001 cultures compared by 2-D analysis and
N-terminal sequencing as described for Example 15 (HN001
phosphoenolpyruvate hydratase AK4).
[0357] A protein up-regulated by heat and osmotic shock was
N-terminal sequenced. The polypeptide sequence is given in SEQ ID
NO: 76. This sequence was used to search an HN001 sequence database
using the TBLASTN program (NCBI) and the corresponding
polynucleotide and polypeptide sequences are given in SEQ ID NO: 21
and 63, and shown in FIGS. 39 and 40, respectively. Similarity
searching using BLAST software revealed closest amino acid sequence
similarity to triosephosphate isomerase sequences but with
significant differences. FIG. 39 shows the nucleotide sequence of
L. rhamnosus strain HN001 triosephosphate isomerase AK5 showing ATG
initiation and translation stop codons (boxed).
[0358] Triosephosphate isomerase (EC 5.3.1.1) is involved in the
glycolysis pathway, and catalyzes the isomerisation reaction of
D-glyceraldehyde 3-phosphate to glycerone phosphate (Fahey et al.,
Biochem. J. 124:77P, 1971).
[0359] The polypeptide of SEQ ID NO: 63 and the polynucleotide of
SEQ ID NO: 21 have utility for processing food and other products
and as supplements and additives to food products. This isomerase
may also be used to develop non-food products. The attributes
conferred by this enzyme include: enhanced bacterial survival in
industrial processes, including food processing; improved
colonization of human intestinal environment; and altered metabolic
characteristics through changes in carbohydrate utilization.
[0360] These attributes may be produced in food products or
supplements by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001, or starter cultures)
comprising a polynucleotide of SEQ ID NO: 21 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 63 or a
variant.
EXAMPLE 19
Isolation and Characterisation of Fructose-bisphosphate Aldolase
from L. rhamnosus HN001
[0361] HN001 fructose-bisphosphate aldolase AM8 was isolated by a
series of experiments designed to identify HN001 strain proteins
that were up-regulated in response to physiological stresses
encountered during industrial processes. Cells were subjected to
heat or osmotic shock, proteins radiolabeled with
[.sup.35S]-methionine and [.sup.35S]-cysteine (Amersham, USA), and
cell-free extracts from shocked and non-shocked HN001 cultures
compared by 2-D analysis and N-terminal sequencing as described in
Example 15.
[0362] A protein upregulated by heat and osmotic shock was
N-terminal sequenced. The amino acid is given in SEQ ID NO: 77.
This was used to search an HN001 sequence database using the
TBLASTN program (NCBI). The corresponding polynucleotide and
polypeptide sequences are given in SEQ ID NO: 29 and 71, and shown
in FIGS. 74 and 75, respectively.
[0363] Fructose-bisphosphate aldolase (EC 4.1.2.13) is involved in
the glycolysis pathway, and catalyzes the elimination reaction of
D-fructose 1,6-bisphosphate to glycerone phosphate and
D-glyceraldehyde 3-phosphate (bacterial enzyme reviewed in: Ujita
and Kimura, Methods in Enzymol. 90: 235-241, 1982).
[0364] The polypeptide of SEQ ID NO: 71 and the polynucleotide of
SEQ ID NO: 29 have utility for processing food and other products
and as supplements and additives to food and other products. This
aldolase may also be used to develop non-food products. The
attributes conferred by this enzyme include: enhanced bacterial
survival of industrial processes; improved colonization of human
intestinal environment; and altered metabolic characteristics
through changes in carbohydrate utilization.
[0365] These attributes may be produced in food products and
supplements by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001, or starter cultures)
comprising a polynucleotide of SEQ ID NO: 29 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 71 or a
variant.
EXAMPLE 20
Isolation and Characterisation Phosphoryl Carrier Protein HPR from
L. rhamnosus HN001
[0366] HN001 phosphoryl carrier protein HPR AA9 was isolated by a
series of experiments designed to identify HN001 strain proteins
that were up-regulated in response to physiological stresses
encountered during industrial processes. Cells were subjected to
heat or osmotic shock, proteins radiolabeled with
[.sup.35S]-methionine and [.sup.35S]-cysteine (Amersham, USA), and
cell-free extracts from shocked and non-shocked HN001 cultures
compared by 2-D analysis and N-terminal sequencing as described for
Example 15.
[0367] A protein upregulated by heat and osmotic shock was
N-terminal sequenced, with the determined amino acid sequence being
given in SEQ ID NO: 78. This sequence was used to search an HN001
sequence database using the TBLASTN program (NCBI) and the
corresponding polynucleotide and polypeptide sequences are given in
SEQ ID NO: 4 and 45, and shown in FIGS. 41 and 42, respectively.
Similarity searching using BLAST software revealed closest amino
acid sequence similarity to phosphoryl carrier protein HPR
sequences but with significant differences.
[0368] Phosphoryl carrier protein HPR is involved in the
phosphoenol-pyruvate:carbohydrate phosphotransferase system (PTS)
responsible for the uptake and phosphorylation of a number of
carbohydrates (De Reuse et al., Gene 35:199-207, 1985;
Gonzy-Treboul et al., Mol. Microbiol. 3:103-112, 1989). PTS is also
involved in the regulation of various bacterial functions by
various mechanisms, including catabolite repression, inducer
exclusion, and inducer expulsion (reviewed in Postma et al.,
Microbiol. Rev. 57:543-594, 1993; Reizer et al., Crit. Rev.
Microbiol. 15:297-338, 1988; Saier et al., Microbiol 142:217-230,
1996).
[0369] The polypeptide of SEQ ID NO: 45 and the polynucleotide of
SEQ ID NO: 4 have utility for processing food products and as
supplements and additives to food products. This aldolase may also
be used to develop non-food products. The attributes conferred by
this enzyme include: enhanced bacterial survival in industrial
processes; improved colonization of human intestinal environment;
altered metabolic characteristics through changes in carbohydrate
utilization; and control of catabolite regulation.
[0370] These attributes may be produced in food, such as dairy
products, by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001, or starter cultures)
comprising a polynucleotide of SEQ ID NO: 4 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 45 or a
variant.
EXAMPLE 21
Isolation and Characterisation of Chaperone Protein dnaK from L.
rhamnosus HN001
[0371] HN001 dnaK chaperone protein AM9 was isolated by a series of
experiments designed to identify HN001 strain proteins that were
up-regulated in response to physiological stresses encountered
during industrial processes. Cells were subjected to heat or
osmotic shock, proteins radiolabeled with [.sup.35S]-methionine and
[.sup.35S]-cysteine (Amersham, USA), and cell-free extracts from
shocked and non-shocked HN001 cultures compared by 2-D analysis and
N-terminal sequencing as described for Example 15.
[0372] A protein up-regulated by heat and osmotic shock was
N-terminal sequenced. The determined amino acid sequence is given
in SEQ ID NO: 79. This sequence was used to search an HN001
sequence database using the TBLASTN program (NCBI). The
corresponding polynucleotide and polypeptide sequences are given in
SEQ ID NO: 30 and 72 and shown in FIGS. 76 and 77, respectively.
Similarity searching using BLAST software revealed closest amino
acid sequence similarity to chaperone protein dnaK sequences but
with significant differences.
[0373] Chaperone protein dnaK is a 70 kDa heat shock protein (HSP).
DnaK chaperones act by binding and protecting exposed regions on
unfolded or partially folded protein chains, and are involved in
reactivating proteins that become aggregated after heat shock
(reviewed in Lund, Adv. Microbial Physiol. 44:93-140, 2001).
Overexpression may contribute to plasmid instability (Lobacz and
Wolska, Acta Microbiol. Pol. 46:393-397, 1977).
[0374] The polypeptide of SEQ ID NO: 72 and the polynucleotide of
SEQ ID NO: 30 have utility for processing food products and as
supplements and additives to food products. This chaperone protein
may also be used to develop non-food products. The attributes
conferred by this protein include: enhanced bacterial survival in
industrial processes; improved colonization of human intestinal
environment; altered protein translation characteristics; and
methods to control plasmid stability.
[0375] These attributes may be produced in food, such as dairy
products, by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001, or starter cultures)
comprising a polynucleotide of SEQ ID NO: 30 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 72 or a
variant.
EXAMPLE 22
Isolation and Characterisation of Glyceraldehyde-3-phosphate
Dehydrogenase from L. rhamnosus HN001
[0376] HN0001 glyceraldehyde-3-phosphate dehydrogenase AK7 was
isolated by a series of experiments designed to identify HN001
strain proteins that were up-regulated in response to physiological
stresses encountered during industrial processes. Cells were
subjected to heat or osmotic shock, proteins radiolabeled with
[.sup.35S]-methionine and [.sup.35S]-cysteine (Amersham, USA), and
cell-free extracts from shocked and non-shocked HN001 cultures
compared by 2-D analysis and N-terminal sequencing as described for
Example 15.
[0377] A protein up-regulated by heat and osmotic shock was
N-terminal sequenced and the determined amino acid sequence is
given in SEQ ID NO: 80. This sequence was used to search an HN001
sequence database using the TBLASTN program (NCBI). The
corresponding polynucleotide and polypeptide sequences are given in
SEQ ID NO: 23 and 65, and shown in FIGS. 43 and 44, respectively.
Similarity searching using BLAST software revealed the closest
amino acid sequence similarity to glyceraldehyde-3-phosphate
dehydrogenase sequences but with significant differences.
[0378] A second experiment was also performed to identify surface
layer proteins extracted from Lactobacillus rhamnosus HN0001
strain. Surface layer proteins were extracted using the method of
Turner et al., J. Bacteriol. 179:3310-3316, 1997. Briefly, 100 ml
stationary phase HN001 culture was pelleted by centrifugation,
washed with an equal volume of 0.15M NaCl, resuspended in 1 ml of
5M LiCl.sub.2 and kept on ice for 15 min. The crude lysate was
centrifuged at 13,000 rpm using a microcentrifuge and analyzed by
SDS-PAGE on a 12.5% gel. To facilitate better extraction of surface
layer proteins, freeze-dried DR20 was extracted with 0.2% SDS and
5M LiCl.sub.2 as described by Brennan et al., Infect. Imm.
52:840-845, 1986 and Toba et al., J Imm. Methods 182:193-207, 1995.
After 1-D electrophoresis according to standard laboratory methods,
gels were blotted on a PVDF membrane using a Semi-dry blotting
apparatus (Bio-Rad). A major surface protein with molecular weight
between 30 and 46 kDa was excised and N-terminal sequencing
performed using a protein sequencer (Applied BioSystems, Model
476A). The determined N-terminal sequence was identical to that
obtained from the heat and osmotic shock experiments described
above. Therefore, HN001 gene AK7 encodes glyceraldehyde-3-phosphate
dehydrogenase, which is up-regulated by shock and is a major cell
surface protein.
[0379] Glyceraldehyde-3-phosphate dehydrogenase (EC 1.2.1.12) is
part of the glycolytic pathway and catalyzes the redox reaction of
D-glyceraldehyde 3-phosphate, phosphate and NAD.sup.+ to
3-phospho-D-glyceroyl phosphate and NADH (for bacterial enzyme see
Amelunxen, Methods in Enzymol. 41:268-273, 1975; D'Alessio and
Josse, J. Biol. Chem. 246:4326-4333, 1971). The enzyme has also
been found to be a major cell-surface component of several
bacterial species including Saccharomyces cerevisiae (Delgado et
al., Microbiol. 147:411-417, 2001), Candida albicans (Gil-Navarro
et al., J. Bacteriol. 179: 4992-4999, 1997) and group A
Streptococci (Pancholi and Fischetti, Proc. Natl. Acad. Sci. USA
90:8154-8158, 1993).
[0380] The polypeptide of SEQ ID NO: 65 and the polynucleotide of
SEQ ID NO: 23 have utility for processing food products and as
supplements and additives to food products. This dehydrogenase may
also be used to develop non-food products. The attributes conferred
by this enzyme include: flavor and aroma enhancement; enhanced
bacterial survival in industrial processes; prolonged survival in
storage; improved colonization of human intestinal environment;
enhanced textural properties; enhanced adhesion to intestinal cell
surfaces; and altered metabolic characteristics.
[0381] These attributes may be produced in food, such as dairy
products, by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001, or starter cultures)
comprising a polynucleotide of SEQ ID NO: 23 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 65 or a
variant.
EXAMPLE 23
Isolation and Characterisation of Transcription Regulator sorR from
L. rhamnosus HN001
[0382] The full-length polynucleotide sequence of a transcription
regulator sorR, given in SEQ ID NO: 24 and shown in FIG. 45, was
used to amplify the AL3 transcription regulator sorR gene from L.
rhamnosus HN001 DNA using standard PCR methodology. The upstream
and downstream primers were tagged with BamHI and PstI restriction
endonuclease recognition sequences to facilitate cloning. The
polypeptide sequence of AL3 is given in SEQ ID NO: 66 and shown in
FIG. 46.
[0383] Full-length HN001 sorR transcription regulator AL3 was
cloned into BamHI and PstI cut pFX3 vector (an E. coli/Lactococcus
lactis shuttle vector as used in Xu et al., FEMS Microbiol. Lett.
61:55-59, 1991), and transformed into competent E. coli DH5.alpha.
cells according to standard laboratory methods. Positive
transformants were selected, grown overnight, and the plasmid
construct isolated using a QIAprep Spin Miniprep Kit (Qiagen). The
pFX3 construct encoding the HN001 sorR transcription regulator AL3
was digested using the restriction enzymes EcoRI and NruI, which
released a 500 bp internal AL3 fragment that was cloned into the
pBEryl vector cut with EcoRI and SmaI. The 3.6 kb pBEryl vector was
constructed using the replicon and multiple cloning site (MCS) from
the phagemid pBlueScript (pBS-SK+) (Stratagene, La Jolla Calif.,
USA). The ampicillin resistance gene in pBS-SK+ was removed by
digestion with RcaI (Roche, Auckland, New Zealand) and the 1,953 bp
fragment containing the ColE1 origin and multiple cloning site
purified and treated with Klenow enzyme (Roche) to give a
blunt-ended fragment. A gene encoding resistance to erythromycin
(Em) was isolated on a 1.6 kb fragment obtained after cutting
pVA891 (Macrina et al., Gene 25:145-50, 1983) with ClaI and HindIII
and treatment with Klenow to give blunt ends. The 1.6 kb Em
fragment was ligated to the 1,953 bp pBS-SK+ fragment, transformed
into E. coli TG1 (Gibson T J, Studies on the Epstein-Barr virus
genome. Ph.D. Thesis, University of Cambridge, Cambridge, England,
1984), and plated on LB agar plates containing 200 .mu.g/ml Em.
Maintenance of .alpha.-complementation for blue/white color
selection of recombinant pBEry1 clones was confirmed by growing E.
coli colonies on agar plates containing IPTG/X-gal.
[0384] The resulting pBEryl construct encoding the HN001 sorR
transcription regulator AL3 gene was transformed into competent
HN001 cells and grown anaerobically for 48 hrs at 37.degree. C. on
MRS lactobacilli agar (Difco, Detroit Mich.) containing 2.5
.mu.g/ml Em. Erythromycin-resistant HN001 were checked for
integration of the plasmid construct into the sorR gene by PCR
using vector-specific (T3 or T7) and AL3 internal fragment-specific
primers. Colonies giving PCR patterns consistent with the
insertional inactivation of the endogenous HN001 sorR transcription
regulator AL3 gene were assessed for sorbose auxotrophy.
[0385] Auxotrophy of selected HN001 mutants for metabolism of
sorbose was tested by growing pure cultures (1% inoculum) overnight
at 37.degree. C. on MRS agar in the presence of 1% sorbose or 1%
glucose, compared to wild-type HN001 and undefined mutant HN001
(Em-resistant cultures with intact sorR transcription regulator AL3
gene, the result of a random integration event) cultures.
[0386] As shown in Table 15, the results indicate that the
AL3.sup.- HN001 mutant strain failed to utilize sorbose as a carbon
source in contrast to wild type HN001 and undefined mutant HN001
strain. This result was confirmed by growing pure cultures (1%
inoculum) overnight at 37.degree. C. in liquid MRS broth with 1%
sorbose or 1% glucose and measuring absorbance at 600 nm. Again,
results showed a clear difference in growth between the AL3.sup.-
mutant strain, and the wild-type and undefined mutant HN001 strains
containing intact the AL3 gene. Thus, the AL3 gene is required for
sorbose metabolism in HN001, and encodes the sorR transcriptional
regulator. TABLE-US-00018 TABLE 15 Results of assessment of sorbose
auxotrophy. MRS Wild type Undefined HN001 AL3.sup.- mutant plates
with: HN001 mutant HN001 1% glucose + + + 1% sorbose + + - +:
growth; -: no growth
[0387] The sorR transcriptional regulator is required for the
transcription of the sorbose operon, thereby regulating the
utilization of L-sorbose as a carbon source, and its expression is
induced by sorbose (Yebra et al., J. Bacteriol. 182:155-163, 2000;
Sprenger and Lengeler, Mol. Gen. Genetics 209:352-359, 1987).
[0388] The polypeptide of SEQ ID NO: 66 and the polynucleotide of
SEQ ID NO: 24 have utility as transcriptional regulators in L.
rhamnosus and other bacterial species. Specifically, applications
for the HN001 sorR transcriptional regulator include: reagents for
the control or modification of metabolic processes; and
construction of sorbose-inducible HN001 expression vectors using
the sorR gene promoter.
EXAMPLE 24
Isolation and Characterisation of
Formamidopyirimidine-DNA-Glycosylase from L. rhamnosus HN001
[0389] The full-length polynucleotide sequence of
formamidopyrimidine-DNA-glycosylase (fpg) from L. rhamnosus strain
HN001, given in SEQ ID NO: 25 and shown in FIG. 47 with ATG
initiation and translation stop codons (boxed), was used to amplify
the AL4 fpg gene from L. rhamnosus HN001 DNA using standard PCR
methodology. The upstream and downstream primers were tagged with
EcoRI and SalI restriction endonuclease recognition sequences to
facilitate cloning.
[0390] AL4 was then cloned into the EcoRI and SalI sites of the
pKK223-3 expression vector (Pharmacia Biotech) and transformed into
the E. coli strain DH5.alpha. competent cells according to standard
laboratory protocols. The polypeptide sequence of AL4 is given in
SEQ ID NO: 67 and shown in FIG. 48. Expression of the fpg AL4
protein was confirmed by SDS-PAGE analysis.
[0391] AL4 fpg activity was assayed according to previously
published methods (Duwat et al., Microbiol. 141:411-417, 1995;
Zhang et al., Nucleic Acids Res. 26:4669-4675, 1998) that examine
the ability of fpg to suppress the spontaneous mutator phenotype of
fpg or mutY mutants of E. coli. The E. coli strain CSH117 (Miller,
in: A short course in Bacterial Genetics, Cold Spring Harbor Press,
Cold Spring Harbor, N.Y., 1992) that contains a mutated mutY gene
was obtained from the E. coli Genetic Stock Centre (Yale
University, USA) and transformed with the pKK223-3 construct
encoding the HN.sub.001 fpg AL4 gene according to standard
laboratory methods. Positive transformants were selected according
to ampicillin resistance, and used to innoculate 7 ml LB broth
cultures containing 100 .mu.g/ml ampicillin and incubated
aerobically at 37.degree. C. with shaking. Cultures containing
pKK223-3 constructs encoding AL4 or empty pKK223-3 vector were
grown to similar OD at 600 nm, serially diluted, and plated in
triplicate on LB plates with and without 100 .mu.g/ml rifampicin
(Sigma). Plates were incubated overnight at 37.degree. C. and
colonies counted. Results are shown in Table 16 as mean plate
counts from three independent experiments.
[0392] These results indicate that there was a significant
difference in the frequency of mutations leading to rifampicin
resistance in E. coli CSH117 transformed with pKK223-3 encoding
HN001 fpg AL4 and empty pKK22-3 vector (p<0.001 by paired
Student's t-test (1-tailed)). Because the presence of AL4
suppressed the spontaneous mutation rate, it was concluded that AL4
encoded the HN001 fpg protein. TABLE-US-00019 TABLE 16 Spontaneous
mutagenesis in E. coli CHS117 expressing the HN001 fpg AL4 gene. E.
coli CSH117 Counts on Counts on LB transformed with LB plates (no
plates with pKK223-3 rifampicin) rifampicin) Mutation Expt:
encoding: (10.sup.8/ml) (10.sup.1/ml) frequency* 1 Empty 13.8 20.0
14.5 AL4 11.0 3.7 3.4 2 Empty 13.0 25.8 20 AL4 10.3 9.5 9.3 3 Empty
12.1 24.4 20.1 AL4 11.6 8.6 7.7 *expressed as the number of
rifampicin-resistant mutants per 10.sup.8 cells
[0393] The fpg protein (EC 3.2.2.23) is a DNA glycosylase/AP lyase
that removes oxidized purine residues present in DNA, including the
highly mutagenic C8-oxo-guanine (8-oxoG) generated in DNA by active
oxygen during metabolism (Laval et al., Mutation Res. 233:73-79,
1990; Boiteux et al., EMBO J. 6: 3177-3183, 1987). The fpg protein
exhibits three catalytic activities in vitro (Olga et al., J. Biol.
Chem. 275:9924-9929, 2000): a DNA glycosylase that excises modified
nucleotide bases (Laval et al., Mutation Res. 402:93-102, 1998), an
AP lyase that incises DNA at abasic sites by an elimination
mechanism, and a deoxyribophosphodiesterase that removes
5'-terminal deoxyribose phosphate residues.
[0394] The polypeptide of SEQ ID NO: 67 and the polynucleotide of
SEQ ID NO: 25 have utility for processing food products, and as
supplements and additives to food products. This glycosylase may
also be used to develop non-food products. The applications for and
attributes conferred by this enzyme include: reagents or techniques
to improve the survival of HN001 in aerobic conditions; enhanced
bacterial survival in industrial processes; and enhanced bacterial
survival in the intestinal environment. These attributes may be
produced in food, such as dairy products, by directed activity of
the enzyme, introduced in a bacterial strain (including strain
HN001, or starter cultures) comprising a polynucleotide of SEQ ID
NO: 25 or a variant, or as an enzyme preparation comprising a
polypeptide of SEQ ID NO: 67 or a variant.
EXAMPLE 25
Isolation and Characterisation of Acetoin Dehydrogenase from L.
rhamnosus HN001
[0395] The full-length polynucleotide sequence of acetoin
dehydrogenase from L. rhamnosis strain HN001, given in SEQ ID NO:
32 and shown in FIG. 49 with ATG initiation and translation stop
codons (boxed), was used to amplify the AP1 acetoin dehydrogenase
gene from L. rhamnosus HN001 DNA using standard PCR methodology.
The upstream and downstream primers were tagged with EcoRI and SalI
restriction endonuclease recognition sequences to facilitate
cloning.
[0396] AP1 was then cloned into the EcoRI and SalI sites of the
pGEX-6P-3 expression vector (Pharmacia Biotech) and transformed
into E. coli strain K12 XL-1Blue competent cells according to
standard laboratory protocols. The polypeptide sequence of acetoin
dehydrogenase AP1 is given in SEQ ID NO: 74 and shown in FIG. 50.
The acetoin dehydrogenase AP1 protein was expressed as a fusion
protein with glutathione S-transferase (GST), and purified using
Glutathione Sepharose 4B resin (Pharmacia Biotech) according to the
manufacturer's instructions. An aliquot of purified AP1-GST fusion
protein was confirmed by SDS-PAGE analysis.
[0397] Acetoin dehydrogenase activity was assayed according to
published methods (Rattray et al., Int. Dairy J. 10:781-789, 2000)
with some modifications. Briefly, acetoin dehydrogenase activity
was measured spectrophotometrically by monitoring the change in
absorbance of the cofactor NADH at 340 nm. Aliquots of the purified
AP4-GST fusion protein solution were added to reaction mixtures
containing 50 mM 2[N-morpholino]ethanesulphonic acid (MES, Sigma)
buffer pH 5.5 at 30.degree. C. and the reactions started by the
addition of 0.5 mM NADH and 37 mM diacetyl (Sigma) in a total
volume of 1 ml. The change in optical density at 340 nm was
measured, and rates of NADH utilization measured as an indicator of
acetoin dehydrogenase activity. Enzyme activity was calculated as
the amount of protein required to convert 1 .mu.mol diacetyl and
NADH to acetoin and NAD.sup.+ per minute at pH 5.5 at 30.degree. C.
Enzyme activity of AP1-GST fusion protein was compared to that of
an irrelevant GST-fusion protein, GST protein and elution buffer
only.
[0398] Results presented in FIG. 51 and Table 17 indicate
significant background utilization of NADH in the reactions.
Similar rates were observed for elution buffer, GST protein and
irrelevant fusion protein, indicating that the GST fusion protein
did not exhibit acetoin reductase activity. Nonetheless, presence
of the AP1-GST fusion protein gave significantly greater acetoin
dehydrogenase activity than background, indicating that HN001 AP1
protein encodes acetoin dehydrogenase. FIG. 51 shows the results of
an acetoin reductase assay as measured by oxidation of NADH
co-factor by OD at 340 nm in the presence of acetoin substrate:
.lamda., elution buffer only; .nu., purified irrelevant GST-fusion
protein; .sigma., purified GST protein; .upsilon., purified AP1-GST
fusion protein. TABLE-US-00020 TABLE 17 Acetoin reductase activity
of AP1 GST-fusion protein compared to elution buffer, GST protein,
and irrelevant GST-fusion protein controls. .DELTA. OD/min Enzyme
activity (.mu.mol/min/ml) AP1-GST fusion protein 3.54 .times.
10.sup.-3 14.07 Irrelevant GST-fusion 2.77 .times. 10.sup.-3 11.13
protein GST protein 2.68 .times. 10.sup.-3 10.77 Elution buffer
only 2.38 .times. 10.sup.-3 9.56
[0399] Acetoin dehydrogenase (EC 1.1.1.5) catalyzes the reduction
of diacetyl to acetoin, and acetoin to 2,3-butanediol as part of
the pyruvate to 2,3-butanediol pathway (reviewed in Sarmiento and
Burgos, Methods in Enzymol. 89:516-523, 1982). Diacetyl is an
important flavor component in a variety of dairy products including
butter, buttermilk, sour cream, fermented cream and cheese. Like
its metabolites or related compounds acetoin, acetaldehyde and
2,3-butanediol, diacetyl plays a role in flavor when present in
trace amounts (reviewed in Escamilla-Hurtado et al., Rev.
Latinoamerican Microbiol. 38:129-37, 1996). A mixture of all these
compounds is produced during lactic acid fermentation, and
particular proportions of these compounds lead to characteristic
flavors in dairy products.
[0400] The polypeptide of SEQ ID NO: 74 and the polynucleotide of
SEQ ID NO: 32 have utility for processing food products, and as
supplements and additives to food products. This dehydrogenase may
also be used to develop non-food products. The attributes conferred
by and applications for use of this enzyme include: modulation of
the production of important flavor compounds; modification of
pyruvate metabolic pathways; industrial production of flavor
compounds; and control of diacetyl levels in dairy products.
[0401] These attributes may be produced in food, such as dairy
products, and the applications implemented by directed activity of
the enzyme, introduced in a bacterial strain (including strain
HN001, or starter cultures) comprising a polynucleotide of SEQ ID
NO: 32 or a variant, or as an enzyme preparation comprising a
polypeptide of SEQ ID NO: 74 or a variant.
EXAMPLE 26
Isolation and Characterisation of Aflatoxin B.sub.1 Aldehyde
Reductase from L. rhamnosus HN001
[0402] The full-length polynucleotide sequence of aflatoxin B.sub.1
aldehyde reductase from L. rhamnosus strain HN001, given in SEQ ID
NO: 15 and shown with ATG initiation and translation stop codons
(boxed) in FIG. 52, was used to amplify the AI7 aflatoxin B.sub.1
aldehyde reductase gene from L. rhamnosus HN001 DNA using standard
PCR methodology. The upstream and downstream primers were tagged
with EcoRI and SalI restriction endonuclease recognition sequences
to facilitate cloning.
[0403] AI7 was then cloned into the EcoRI and SalI sites of the
pGEX-6P-3 expression vector (Pharmacia Biotech) and transformed
into E. coli strain DH5.alpha. competent cells according to
standard laboratory protocols. The polypeptide sequence of
aflatoxin B, aldehyde reductase AI7 is given in SEQ ID NO: 57 and
shown in FIG. 53. The aflatoxin B.sub.1 aldehyde reductase AI7
protein was expressed as a fusion protein with glutathione
S-transferase (GST) and purified using Glutathione Sepharose 4B
resin (Pharmacia Biotech) according to the manufacturer's
instructions. An aliquot of the purified AI7 protein was checked by
SDS-PAGE analysis.
[0404] AI7 activity was assayed by the previously published method
of Ellis and Hayes (Biochem. J. 312:535-541, 1995) with some
modifications. Briefly, the aldehyde- and ketone-reducing activity
of aflatoxin B.sub.1 aldehyde reductase was assayed using
4-nitrobenzyl alcohol as substrate and NADPH as a cofactor. Enzyme
activity was assessed spectrophotometrically by monitoring the
utilization of NADPH at an OD of 340 nm. Reaction volumes of 1 ml
containing 100 mM sodium phosphate pH 6.6 and 0.2 mM NADPH were
prepared, aliquots of purified AI7 protein added, and the changes
in OD measured. Enzyme activity was compared between reactions
containing AI7-GST fusion protein, irrelevant GST-fusion protein,
elution buffer used during protein purification and water only.
Enzyme activity was calculated as .mu.mol NADP used/min/ml.
[0405] As shown in FIG. 54 and Table 18, the results indicate that
HN001 AI7 protein fused with GST exhibited significant aldehyde
reductase activity, while the irrelevant GST-fusion protein, as
well as the water and elution buffer controls, showed no activity
whatsoever. Therefore, the aflatoxin B.sub.1 aldehyde reductase
activity of the AP4-GST fusion protein was due to the AI7 moiety
rather than the GST. Also, the results showed increased rate of
substrate utilization proportional to the amount of AI7 protein
added, indicating that aflatoxin B.sub.1 aldehyde reductase
activity of AI7 was dose dependent. Therefore, AI7 encodes HN001
aflatoxin B.sub.1 aldehyde reductase.
[0406] FIG. 54 shows the experimental results of aflatoxin B.sub.1
aldehyde reductase assay according to oxidation of the NADPH
co-factor in the presence of acetoin substrate. X, water only; +,
Sepharose column elution buffer only; .lamda., irrelevant
GST-fusion protein; .nu., 10 .mu.l purified AP4-GST fusion protein;
.sigma. 20 .mu.l purified AP4-GST fusion protein. TABLE-US-00021
TABLE 18 Aflatoxin B.sub.1 aldehyde reductase activity of AI7
GST-fusion protein compared to elution buffer, water and irrelevant
GST-fusion protein controls. .DELTA. OD/min at 340 nm Enzyme
activity (.mu.mol/min/ml) Elution 0.00 0 buffer only Water only
0.00 0 10 .mu.l 0.00 0 Irrelevant protein 10 .mu.l AI7 0.038 606 20
.mu.l AI7 0.087 690
[0407] Aflatoxin B.sub.1 aldehyde reductase metabolizes the
carcinogen aflatoxin B.sub.1 (AFB.sub.1) by converting the
protein-binding dialdehyde form of AFB.sub.1-dihydrodiol to the
non-binding di-alcohol metabolite, and is associated with
AFB.sub.1-resistance in animal studies (Ellis et al., Proc. Natl.
Acad. Sci. USA 90:10350-10354, 1993; Hayes et al., Cancer Res.
53:3887-3894, 1993). The enzyme is also active against other
substrates including a particular class of ketone (ketone groups on
adjacent carbon atoms, e.g. 9,10-phenanthrenequinone), as well as
aromatic and aliphatic aldehydes (Ellis and Hayes, Biochem. J.
312:535-541, 1995).
[0408] The polypeptide of SEQ ID NO: 57 and the polynucleotide of
SEQ ID NO: 15 have utility for processing food products, and as
supplements and additives to food products. This reductase also has
applications in non-food products and processes. The attributes
conferred by and applications for use of this enzyme include:
anti-carcinogenic or chemoprotectant reagents; probiotic bacterial
strains with anti-cancer effects; research tools for cancer
research; enhanced flavor or aroma characteristics; removal of
undesirable flavors; and description and application of novel
metabolic pathways.
[0409] These attributes may be produced and applications
implemented by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001, or starter cultures)
comprising a polynucleotide of SEQ ID NO: 15 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 57 or a
variant.
EXAMPLE 27
Isolation and Characterisation of 6-Phospho-.beta.-galactosidase
from L. rhamnosus HN001
[0410] The full-length polynucleotide sequence of
6-phospho-.beta.-galactosidase, given in SEQ ID NO: 31 and shown
with the translation stop codon (boxed) in FIG. 78, was used to
amplify the A05 6-phospho-.alpha.-galactosidase gene from L.
rhamnosus HN001 DNA using standard PCR methodology. The upstream
and downstream primers were tagged with EcoRI and SalI restriction
endonuclease recognition sequences to facilitate cloning.
[0411] A05 was then cloned into the EcoRI and SalI sites of the
pGEX-6P-3 expression vector (Pharmacia Biotech) and transformed
into E. coli strain DH5.alpha. competent cells according to
standard laboratory protocols. The polypeptide sequence of AO5 is
given in SEQ ID NO: 73 and shown in FIG. 79. The
6-phospho-.beta.-galactosidase AO5 protein was expressed as a
fusion protein with glutathione S-transferase (GST) and purified
using Glutathione Sepharose 4B resin (Pharmacia Biotech) according
to the manufacturer's instructions. An aliquot of the purified AO5
protein was checked by SDS-PAGE analysis.
[0412] A05 activity was assayed using standard laboratory methods
as follows. Briefly, crude cell lysates were prepared by
resuspending a 10 ml overnight culture of E. coli DH5.alpha. cells
in 1 ml lysis buffer (50 mM potassium phosphate pH 7.8, 400 mM
NaCl, 100 mM KCl, 10% glycerol, 0.5% Triton X-100, 10 mM
imidazole). Cells were sonicated and spun to sediment cell debris
according to standard laboratory methods. Aliquots of 50 .mu.l of
cell lysate were added to 900 .mu.l reaction buffer (100 mM
KH.sub.2PO.sub.4 pH 7.0, 2 mM MgCl.sub.2) and 50 .mu.l substrate
O-nitrophenyl .beta.-D-glycopyranoside (ONPG) (Sigma). Utilization
of OPNG was measured spectrophotometrically by monitoring change in
absorbance at 420 nm and enzyme activity was calculated as .mu.mol
OPNG used/min/ml. 6-Phospho-.beta.-galactosidase enzyme activity
was compared in crude lysates from E. coli DH5.alpha. transformed
with pGEX-6P-3 encoding A05, pGEX-6P-3 encoding an irrelevant
protein, and lysis buffer only.
[0413] Experimental results presented in FIG. 55 and Table 19
indicate that while reactions containing crude lysates from cells
transformed with an irrelevant GST-fusion protein or lysis buffer
only exhibited little or no enzyme activity, crude lysate from E.
coli expressing AO5-GST fusion protein showed significant enzyme
activity. FIG. 55 shows the experimental determination of
6-phospho-.beta.-galactosidase enzyme activity as measured by
substrate utilization using crude lysates of strains transformed
with pGex-6P-3 encoding A05 (.upsilon.), pGex-6P-3 encoding an
irrelevant protein (.nu.), or using lysis buffer only (X).
TABLE-US-00022 TABLE 19 6-Phospho-.beta.-galactosidase enzyme
activity in crude cell lysates Enzyme activity Crude cell lysate
expressing: .DELTA. OD/min at 420 nm (.mu.mol/min/ml) AO5-GST
fusion protein 0.074 0.60 Irrelevant GST-fusion protein 0.001 0.01
Lysis buffer only 0.000 0.00
[0414] Enzyme activity was also measured in increasing amounts of
crude cell lysates to assess dose-dependency. Results shown in FIG.
56 and Table 20 indicate that increasing amounts of cell lysates
from cells expressing the A05-GST fusion protein led to
proportional increases in 6-phospho-.beta.-galactosidase enzyme
activity. Therefore, A05 encodes HN001
6-phospho-.beta.-galactosidase. FIG. 56 shows
6-phospho-.beta.-galactosidase enzyme activity as measured
experimentally by substrate utilisation using increasing amounts of
crude lysate from strains transformed with pGex-6P-3 encoding
A05-GST fusion protein. .upsilon., 50 .mu.l lysate; .nu., 100 .mu.l
lysate; .sigma., 200 .mu.l lysate; .lamda., 200 .mu.l lysis buffer
only. TABLE-US-00023 TABLE 20 6-Phospho-.beta.-galactosidase enzyme
activity in increasing amounts of crude cell lysates. Crude cell
lysate expressing Enzyme activity AO5-GST fusion protein .DELTA.
OD/min at 420 nm (.mu.mol/min/ml) 50 .mu.l 0.074 0.60 100 .mu.l
0.113 0.92 200 .mu.l 0.169 1.38 200 .mu.l 0.000 0.00 Lysis buffer
only
[0415] 6-Phospho-.beta.-galactosidase (EC 3.2.1.85) catalyzes the
hydrolysis of O-glycosyl bonds of 6-phospho-beta-D-galactosides to
give alcohols and 6-phospho-D-galactose, and is involved in lactose
utilization (Hengstenberg and Morse, Methods in Enzymol.
42:491-494, 1975).
[0416] The polypeptide of SEQ ID NO: 73 and the polynucleotide of
SEQ ID NO: 31 have utility for processing food products and as
supplements and additives to food products. This galactosidase may
also be used to develop non-food products. The attributes conferred
by this enzyme include: flavor and aroma enhancement; nutritional
enhancement; altered bacterial metabolic/growth characteristics;
and removal of bitter or undesirable flavors.
[0417] These attributes may be produced in food, such as dairy
products, by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001, or starter cultures)
comprising a polynucleotide of SEQ ID NO: 31 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 73 or a
variant.
EXAMPLE 28
Isolation and Characterisation of Aromatic Aminotransferase from L.
rhamnosus HN001
[0418] The full-length polynucleotide sequence of aromatic
aminotransferase of L. rhamnosus strain HN001, given in SEQ ID NO:
11 and shown in FIG. 57 with ATG initiation and translation stop
codons (boxed), was used to amplify the AH7 aromatic
aminotransferase gene from L. rhamnosus HN001 DNA using standard
PCR methodology. The upstream and downstream primers were tagged
with EcoRI and SalI restriction endonuclease recognition sequences
to facilitate cloning.
[0419] AH7 was then cloned into the EcoRI and SalI sites of the
pGEX-6P-3 expression vector (Pharmacia Biotech) and transformed
into E. coli strain DH5.alpha. competent cells according to
standard laboratory protocols. The polypeptide sequence of aromatic
aminotransferase AH7 is given in SEQ ID NO: 53 and shown in FIG.
58. The aromatic aminotransferase AH7 protein was expressed as a
fusion protein with glutathione S-transferase (GST) and purified
using Glutathione Sepharose 4B resin (Pharmacia Biotech) according
to the manufacturer's instructions. An aliquot of the purified AH7
protein was checked by SDS-PAGE analysis.
[0420] Aromatic aminotransferase activity was assayed according to
previously published methods (Yvon et al., Appl. Environ.
Microbiol. 63:414-419, 1997) with modifications. The assay is
composed of two parts: the first is an aminotransferase reaction
using the aromatic amino acid phenylalanine as substrate and
results in the production of glutamate from .alpha.-ketoglutarate.
The second part of the assay is the colorimetric determination of
the glutamate. For the phenylalanine transamination, 250 .mu.l
reaction mixtures containing 70 mM Tris-HCl pH 8.0, 3 mM
L-phenylalanine, 10 mM .alpha.-ketoglutarate and 0.05 .mu.M
pyridoxal 5' phosphate were incubated with purified proteins or
elution buffer at 37.degree. C. for 15 min. Aliquots of 20 .mu.l
were then taken and glutamate levels determined by adding to a
reaction mixture containing 65 mM Tris pH 9.0, 1.3 mM EDTA, 40 mM
hydrazine, 19.5 mM NAD.sup.+ and 65 mM ADP, with and without 2.4 U
glutamate dehydrogenase in a total volume of 250 .mu.l in the wells
of a microtitre plate. Reactions were incubated at 37.degree. C.
for 40 min and absorbance at 340 nm measured using a plate reader
(Molecular Devices, Sunnyvale Calif.). Enzyme activity of the
purified AH7-His-Thio fusion protein was compared a purified
irrelevant His-Thio-fusion protein, elution buffer used to elute
the purified proteins from the Ni-NTA columns and water only and
results are shown in Table 21. Glutamate concentrations were
calculated using a standard curve, and assays on all samples and
standards were performed in triplicate. Enzyme activities were
calculated as .mu.mol glutamate produced/min/ml and specific
activities calculated using protein concentrations obtained using
the BCA protein assay kit (Pierce) according to the manufacturer's
instructions. While the irrelevant fusion protein, elution buffer
and water resulted in little glutamate production, AH7 fusion
protein exhibited significant aminotransferase activity using
phenylalanine as substrate, demonstrating that HN001 AH7 encodes an
aromatic amino acid transaminase. TABLE-US-00024 TABLE 21 Aromatic
amino acid transaminase activity in HN001 AH7 purified protein as
measured by glutamate production. mM glutamate Enzyme Specific per
activity activity reaction (.mu.mol/min/ml) (.mu.mol/min/.mu.g)
Water only 0.044 146 -- 10 .mu.l elution buffer 0.031 103 -- 10
.mu.l irrelevant His-Thio- 0.030 100 0.52 fusion protein solution
10 .mu.l His-Thio-AH7 fusion 1.120 3733 17.7 protein solution
[0421] Aromatic amino acid transaminase (EC 2.6.1.57) catalyzes the
transfer of amino groups between an aromatic amino acid and
.alpha.-ketoglutarate to its aromatic oxo-acid and L-glutamate
(Mavrides and Orr, J. Biol. Chem. 250:4128-4133, 1975). The
products of enzymatic amino acid degradation play a major role in
cheese flavor development. Degradation products from aromatic amino
acids have both positive and negative impacts on cheese flavor
(Dunn and Lindsay, J. Dairy Sci. 68:2859-2874, 1985; Engels et al.,
Int. Dairy J. 7:225-263, 1997). Therefore, the applications of
HN001 aromatic amino acid aminotransferase AH7 include: flavor and
aroma enhancement; removal of off-flavors; altered levels of
biogenic amines; and altered metabolic characteristics.
[0422] These attributes may be produced in food, such as dairy
products, by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001 or starter cultures)
comprising a polynucleotide of SEQ ID NO: 11, or as an enzyme
preparation comprising a polypeptide of SEQ ID NO: 53.
EXAMPLE 29
Isolation and Characterisation of Acetate Kinase from L. rhamnosus
HN001
[0423] The full-length polynucleotide sequence of acetate kinase,
given in SEQ ID NO: 33 and shown in FIG. 59 with ATG initiation and
translation stop codons (boxed), was used to amplify the AP5
acetate kinase gene from L. rhamnosus strain. The upstream and
downstream primers were tagged with EcoRI and SalI restriction
endonuclease recognition sequences to facilitate cloning.
[0424] AP5 was then cloned into the EcoRI and SalI sites of the
pGEX-6P-3 expression vector (Pharmacia Biotech) and transformed
into E. coli strain K12 XL-1Blue competent cells according to
standard laboratory protocols. The polypeptide sequence of the
acetate kinase AP5 polypeptide is given in SEQ ID NO: 75 and shown
in FIG. 60. This was expressed as a fusion protein with glutathione
S-transferase (GST) and purified using Glutathione Sepharose 4B
resin (Pharmacia Biotech) according to the manufacturer's
instructions. An aliquot of the purified AP5 protein was checked by
SDS-PAGE analysis.
[0425] AP5 activity was assayed based on a published method for
analysis of the related carbamate kinase (Crow and Thomas, J.
Bacteriol. 150:1024-1032, 1982). Briefly, the assay uses a couple
reaction such that acetyl phosphate and ADP is converted to
CO.sub.2, NH3 and ATP in the presence of acetate kinase. The
produced ATP is then combined with glucose by the enzyme hexokinase
to give glucose-6-phosphate, which in turn is reduced by
glucose-6-phosphate dehydrogenase using the NADP.sup.+ cofactor.
Because the hexokinase glucose-6-phosphate dehydrogenase enzymes
are provided in excess, acetate kinase activity can be assessed
spectrophotometrically by monitoring NADPH production at an OD of
340 nm. Reaction mixtures of 730 .mu.l 200 mM Tris-HCL pH 7.9, 73
.mu.l 200 mM acetyl phosphate, 36.5 .mu.l 200 mM ADP, 36.5 .mu.l
200 mM MgCl.sub.2, 73 .mu.l 500 mM glucose, 7 .mu.l 100 mM
NADP.sup.+ and 7 .mu.l hexokinase glucose-6-phosphate dehydrogenase
were prepared and allowed to equilibrate at 37.degree. C. Purified
AP5-GST fusion protein and sterile milliQ water was added to a
final volume of 1 ml, and changes in OD at 340 nm measured. Enzyme
activity was compared between purified AP5-GST fusion protein,
irrelevant fusion protein, and elution buffer used to elute the
purified proteins off the Sepharose column. The results are shown
in Table 22. Enzyme activities were calculated as .mu.mol NAPDH
produced/min/ml, and specific activities calculated using protein
concentrations obtained using the BCA protein assay kit (Pierce)
according to the manufacturer's instructions. The results indicate
that while elution buffer and irrelevant GST-fusion protein showed
little or no enzyme activity, the AP5-GST fusion protein exhibited
significant activity. Therefore, AP5 encodes HN001 acetate kinase.
TABLE-US-00025 TABLE 22 Acetate kinase activity of HN001 protein
AP5. Enzyme Specific .DELTA. OD/min activity activity at 340 nm
(.mu.mol/min/.mu.l) (.mu.mol/min/.mu.g) 20 .mu.l elution buffer 0.0
0.0 -- 1 .mu.l irrelevant GST-fusion 0.13 0.05 0.025 protein
solution 2 .mu.l AP5-GST fusion 1.72 0.35 0.172 protein
solution
[0426] Acetyl kinase (EC 2.7.2.1) catalyzes the phosphotransfer
between ADP and acetyl phosphate to give ATP and acetate (Nishimura
and Griffith, Methods in Enzymol. 71:311-316, 1981). Acetate, a
flavor compound in its own right, can give ammonia and carbon
dioxide, both of which have important flavor and texture impacts in
cheese (Fox et al., Crit. Rev. Food Sci. Nutr. 29:237-53,
1990).
[0427] The polypeptide of SEQ ID NO: 75 and the polynucleotide of
SEQ ID NO: 33 have utility for processing food products and as
supplements and additives to food products. This kinase may also be
used to develop non-food products. The attributes conferred by this
enzyme include: flavor and aroma enhancement; removal of
off-flavors; altered texture characteristics; and altered metabolic
characteristics.
[0428] These attributes may be produced in food, such as dairy
products, by directed activity of the enzyme, introduced in a
bacterial strain (including strain HN001, or starter cultures)
comprising a polynucleotide of SEQ ID NO: 33 or a variant, or as an
enzyme preparation comprising a polypeptide of SEQ ID NO: 75 or a
variant.
EXAMPLE 30
Isolation and Characterisation of Basic Surface Protein from L.
rhamnosus HN001
[0429] The full-length polynucleotide sequence of basic surface
protein from L. rhamnosus strain HN001, given in SEQ ID NO: 6 and
shown in FIG. 61 with ATG initiation and translation stop codons
(boxed), was used to amplify the AC9 basic surface protein gene,
but excluding the predicted N-terminal Type II signal sequence. The
primer sequences used (SEQ ID NO: 34 and 35) and were tagged with
EcoRI and BamHI restriction endonuclease recognition sequences,
respectively, to facilitate cloning. AC9 sequence was then
amplified from HN001 strain genomic DNA, purified, cloned into
EcoRI/BamHI-cut pGEX-6P-3 expression vector, and transformed into
E. coli DH5.alpha. cells according to standard laboratory methods.
The polypeptide sequence of basic surface protein AC9 is given in
SEQ ID NO: 47 and shown in FIG. 62. The basic surface protein AC9
was expressed as a fusion protein with glutathione S-transferase
(GST), bound to Glutathione Sepharose 4B resin (Pharmacia Biotech),
and PreScission protease used to cleave off the basic surface
protein AC9 protein, according to the manufacturer's instructions.
An aliquot of the purified AC9 protein was checked by SDS-PAGE
analysis.
[0430] Purified AC9 protein (14 .mu.g) was labeled by
radio-iodination with 0.1 mCi iodine-125 (Amersham Pharmacia) using
IODO-BEADS iodination reagent (Pierce) following the manufacturer's
instructions. The radio-iodinated protein was separated from
unincorporated iodine-125 and excess sodium iodide-125 using a
PD-10 desalting column (Amersham-Pharmacia) according to the
manufacturer's instructions, except that the elution was performed
in phosphate buffered saline in twelve 500 .mu.l aliquots.
Radioactivity in eluted fractions was quantitated on a Bioscan
Quick Count QC-4000/XER Benchtop Radioisotope Counter (Bioscan,
Inc.) and fractions containing the first peak of radioactivity
(corresponding to labeled AC9 protein) were pooled and bovine serum
albumin added to a final concentration of 10 mg/ml.
[0431] To analyze the binding of polypeptide AC9 to proteins
associated with intestinal surface proteins known to act as ligands
for bacterial adhesins, different intestinal protein ligands were
dot blotted onto a nitrocellulose membrane using a Convertible
Filtration Manifold System (Life Technologies) following the
manufacturer's instructions. Duplicate dots of approximately 1
.mu.g of type I collagen from calf skin, type IV collagen from
human placenta, fibronectin from human plasma, laminin from the
basement membrane of Engelbreth-Holm-Swarm mouse sarcoma and type
III mucin partially purified from porcine stomach and bovine serum
albumin included as a negative control (all proteins were obtained
from Sigma) were blotted. The blot was incubated at room
temperature on an orbital shaker in 10 ml phosphate buffered
saline, pH 7.4, containing 0.1% Tween 20 and 5 mg/ml bovine serum
albumin for 1 hour. Radio-iodinated AC9 protein was then added to a
final concentration of approximately 500 ng/ml, and incubated at
room temperature for a further hour. The blot was washed three
times in approximately 40 ml phosphate buffered saline, pH 7.4,
containing 0.1% Tween 20 at room temperature for 10 minutes, then
autoradiographed against X-ray film at -80.degree. C. overnight.
The autoradiograph was developed and the resulting image digitized
with a Fluor S MultiImager (BioRad). Binding by AC9 protein to the
intestinal protein ligands was quantitated using Bio-Rad Quantity
One software by measuring the density of the signal on the
autoradiograph resulting from radiolabeled AC9 protein binding to
the different ligands and subtracting the background density of
blank film. To quantitate relative amounts of protein ligands
blotted, blots were stained with Ponceau S using standard
procedures (Ausubel et al., Current Protocols in Molecular Biology,
John Wiley & Sons, 2001), and quantitated as for the
autoradiograhs. The density corresponding to AC9 protein binding to
individual ligands was divided by the average density of Ponceau S
staining of the ligand to give the relative AC9 bound to each
ligand. Binding of iodinated AC9 (1.50.times.10.sup.7 dpm) was
compared to binding of iodinated mucus adhesion promoting (mapA)
protein of Lactobacillus reuteri (GenBank accession number
AJ293860) as a positive control, and iodinated irrelevant HN001
protein (7.00.times.10.sup.6 dpm) as a negative control.
[0432] As shown in Table 23, the results indicate that while the
irrelevant HN001 protein did not bind to any of the intestinal
adhesin ligands, both the AC9 protein and the positive control
protein mapA showed significant binding to mucin. Therefore, AC9
encodes the HN001 basic surface protein. The results represent the
mean of relative density of two dots. TABLE-US-00026 TABLE 23
Density of autoradiographic signals from AC9 basic surface protein
binding to dot blots of intestinal proteins, compared to a positive
control (mapA) and negative control (irrelevant HN001 protein).
Intestinal Relative Relative Relative Irrelevant Protein AC9
Binding mapA Binding protein Binding BSA 0.25 0.76 0.06 Collagen I
0.44 1.02 0.26 Collagen IV 0.34 0.78 0.09 Fibronectin 0.35 0.67
0.09 Laminin 0.53 0.83 0.12 Mucin 2.20 2.57 0.68
[0433] The basic surface protein of Lactobacillus fermentum is a
surface-bound molecule that belongs to a family of ATP-binding
cassette (ABC) receptor solute binding proteins (Turner et al., J.
Bacteriol. 179:3310-3316, 1997; Tam et al., Microbiol. Rev.
57:320-346, 1993). Basic surface protein has also been shown to be
involved in cysteine uptake (Turner et al., J. Bacteriol.
181:2192-2198, 1999) and has been used as an attachment site for
immunodominant proteins in the development of new vaccine
strategies (Turner et al., Infect. Imm. 67:5486-5489, 1999).
[0434] The polypeptide of SEQ ID NO: 47 and the polynucleotide of
SEQ ID NO: 6 have utility for processing food products, and as
supplements and additives. This basic surface protein may also be
used to develop non-food products. The attributes conferred by this
protein include: enhanced adhesion to intestinal surface and cell
lines; enhanced bacterial survival in intestinal environment;
altered metabolic characteristics; altered flavor or aroma
characteristics; enhanced probiotic effects; reagents to block or
modify adherence of bacteria to mucosal surfaces; and development
of vaccine carriers.
[0435] These attributes may be produced in food, such as dairy
products, or in supplements by directed activity of the enzyme,
introduced in a bacterial strain (including strain HN001, or
starter cultures) comprising a polynucleotide of SEQ ID NO: 6 or a
variant, or as an enzyme preparation comprising a polypeptide of
SEQ ID NO: 47 or a variant.
EXAMPLE 31
Isolation and Characterisation of Outer Membrane Protein A from L.
rhamnosus HN001
[0436] The full-length polynucleotide sequence of outer membrane
protein A from L. rhamnosus strain HN001, given in SEQ ID NO: 27
and shown in FIG. 63 with ATG initiation and translation stop
codons (boxed) was used to amplify the N-terminal region of AL8
outer membrane protein A gene. The primer sequences are given in
SEQ ID NO: 36 and 37, respectively, and were tagged with BamHI and
XhoI restriction endonuclease recognition sequences, respectively,
to facilitate cloning. AL8 sequence was then amplified from HN001
strain genomic DNA, purified, cloned into BamHI/XhoI-cut pGEX-6P-3
expression vector, and transformed into E. coli DH5.alpha. cells
according to standard laboratory methods. The polypeptide sequence
of outer membrane protein A AL8 is given in SEQ ID NO: 69 and shown
in FIG. 64. AL8 was expressed as a fusion protein with glutathione
S-transferase (GST), bound to Glutathione Sepharose 4B resin
(Pharmacia Biotech), and PreScission protease was used to cleave
off the AL8 protein, according to the manufacturer's instructions.
An aliquot of the purified AL8 protein was checked by SDS-PAGE
analysis.
[0437] Purified AL8 protein (20 .mu.g) was then labeled by
radio-iodination with 0.1 mCi iodine-125 (Amersham Pharmacia) using
IODO-BEADS iodination reagent (Pierce) following the manufacturer's
instructions. Radio-iodinated protein was separated from
unincorporated iodine-125 and excess sodium iodide-125 using a
PD-10 desalting column (Amersham-Pharmacia) according to the
manufacturer's instructions, except that the elution was performed
in phosphate buffered saline in twelve 500 .mu.l aliquots.
Radioactivity in eluted fractions was quantitated on a Bioscan
Quick Count QC-4000/XER Benchtop Radioisotope Counter (Bioscan,
Inc.) and fractions containing the first peak of radioactivity
(corresponding to labeled AL8 protein) were pooled and bovine serum
albumin added to a final concentration of 10 mg/ml.
[0438] To analyze AL8 protein binding to proteins associated with
intestinal surface proteins known to act as ligands for bacterial
adhesins, different intestinal protein ligands were dot blotted
onto a nitrocellulose membrane using a Convertible Filtration
Manifold System (Life Technologies) following the manufacturer's
instructions. Duplicate dots of approximately 1 .mu.g of type I
collagen from calf skin, type IV collagen from human placenta,
fibronectin from human plasma, laminin from the basement membrane
of Engelbreth-Holm-Swarm mouse sarcoma and type III mucin partially
purified from porcine stomach and bovine serum albumin included as
a negative control (all proteins were obtained from Sigma) were
blotted. The blot was incubated at room temperature on an orbital
shaker in 10 ml phosphate buffered saline, pH 7.4, containing 0.1%
Tween 20 and 5 mg/ml bovine serum albumin for 1 hour.
Radio-iodinated AL8 protein was then added to a final concentration
of approximately 500 ng/ml, and incubated at room temperature for a
further hour. The blot was then washed three times in approximately
40 ml phosphate buffered saline, pH 7.4, containing 0.1% Tween 20
at room temperature for 10 minutes, then autoradiographed against
X-ray film at -80.degree. C. overnight. The autoradiograph was
developed and the resulting image digitized with a Fluor S
Multilmager (BioRad). Binding by AL8 protein to the intestinal
protein ligands was quantitated using Bio-Rad Quantity One software
by measuring the density of the signal on the autoradiograph
resulting from radiolabelled AL8 protein binding to the different
ligands and subtracting the background density of blank film. To
quantitate relative amounts of protein ligands blotted, blots were
stained with Ponceau S using standard procedures (Ausubel et al.,
Current Protocols in Molecular Biology, John Wiley & Sons,
2001), and quantitated as for the autoradiograhs. The density
corresponding to AL8 protein binding to individual ligands was
divided by the average density of Ponceau S staining of the ligand
to give the relative AL8 bound to each ligand. Binding of iodinated
AL8 (3.2.times.10.sup.7 DPM) was compared to binding of iodinated
mucus adhesion promoting (mapA) protein of Lactobacillus reuteri
(GenBank accession number AJ293860) (6.6.times.10.sup.6 dpm) as a
positive control, and iodinated irrelevant HN001 protein
(7.0.times.10.sup.6 DPM) as a negative control.
[0439] The results, shown in Table 24, indicate that while the
irrelevant HN001 protein did not bind to any of the intestinal
adhesin ligands, both the AL8 protein and the positive control
protein mapA showed significant binding to mucin. Therefore, AL8
encodes the HN001 outer membrane protein A. Results represent mean
of relative density of two dots. TABLE-US-00027 TABLE 24 Density of
autoradiographic signals from AL8 outer membrane protein A binding
to dot blots of intestinal proteins, compared to a positive control
(mapA) and negative control (irrelevant HN001 protein). Intestinal
Relative Relative Relative Irrelevant Protein AL8 Binding mapA
Binding protein Binding BSA 0.08 0.76 0.06 Collagen I 0.89 1.02
0.26 Collagen IV 0.16 0.78 0.09 Fibronectin 0.24 0.67 0.09 Laminin
0.47 0.83 0.12 Mucin 2.01 2.57 0.68
[0440] The outer membrane protein A of Rickettsia spp. is a 190 kDa
surface bound molecule required for the adhesion of Rickettsia to
host cells (Li and Walker, Microbial Path. 179:3310-3316, 1998).
Rickettsial outer membrane protein A is also an immunodominant
protein and has been used for the serotyping of rickettsial strains
(Philip et al., J. Imm. 121:1961-1968, 1978).
[0441] The polypeptide of SEQ ID NO: 69 and the polynucleotide of
SEQ ID NO: 27 have utility for processing food products and as
supplements and additives. This outer membrane protein may also be
used to develop non-food products. The attributes conferred by and
applications for this protein include: enhanced adhesion to
intestinal surface and cell lines; enhanced bacterial survival in
intestinal environment; altered texture characteristics; enhanced
probiotic effects; reagents to block or modify adherence of
bacteria to mucosal surfaces; and development of vaccine
carriers.
[0442] These attributes may be produced in food, such as dairy
products, and the applications may be implemented by directed
activity of the protein, introduced in a bacterial strain
(including strain HN001, or starter cultures) comprising a
polynucleotide of SEQ ID NO: 27 or a variant, or as an enzyme
preparation comprising a polypeptide of SEQ ID NO: 69 or a
variant.
EXAMPLE 32
Isolation and Characterisation of Extracellular Matrix Binding
Protein from L. rhamnosus HN001
[0443] The full-length polynucleotide sequence of extracellular
matrix binding protein, AM4, from L. rhamnosus strain HN001, given
in SEQ ID NO: 28 and shown in FIG. 65, was used to amplify the
N-terminal region of AM4 extracellular matrix binding protein gene.
The primer sequences used (SEQ ID NO: 38 and 39) were tagged with
EcoRI and NotI restriction endonuclease recognition sequences,
respectively, to facilitate cloning. AM4 sequence was then
amplified from HN001 strain genomic DNA, purified, cloned into
EcoRI/NotI-cut pGEX-6P-3 expression vector, and transformed into E.
coli DH5.alpha. cells according to standard laboratory methods. The
polypeptide sequence of extracellular matrix binding protein AM4 is
given in SEQ ID NO: 70 and shown in FIG. 66. The extracellular
matrix binding protein AM4 was expressed as a fusion protein with
glutathione S-transferase (GST) and purified using Glutathione
Sepharose 4B resin (Pharmacia Biotech), according to the
manufacturer's instructions. An aliquot of the purified AM4-GST
fusion protein was checked by SDS-PAGE analysis.
[0444] Purified AM4 protein (10 .mu.g) was labeled by
radio-iodination with 0.1 mCi iodine-125 (Amersham Pharmacia) using
IODO-BEADS iodination reagent (Pierce) following the manufacturer's
instructions. Radio-iodinated protein was separated from
unincorporated iodine-125 and excess sodium iodide-125 using a
PD-10 desalting column (Amersham-Pharmacia) according to the
manufacturer's instructions, except that the elution was performed
in phosphate buffered saline in twelve 500 .mu.l aliquots.
Radioactivity in eluted fractions was quantitated on a Bioscan
Quick Count QC-4000/XER Benchtop Radioisotope Counter (Bioscan,
Inc.) and fractions containing the first peak of radioactivity
(corresponding to labeled AM4 protein) were pooled and bovine serum
albumin added to a final concentration of 10 mg/ml.
[0445] To analyze binding of the AM4 protein with intestinal
surface proteins known to act as ligands for bacterial adhesins,
different intestinal protein ligands were dot blotted onto a
nitrocellulose membrane using a Convertible Filtration Manifold
System (Life Technologies) following the manufacturer's
instructions. Duplicate dots were blotted of approximately 1 .mu.g
of type I collagen from calf skin, type IV collagen from human
placenta, fibronectin from human plasma, and laminin from the
basement membrane of Engelbreth-Holm-Swarm mouse sarcoma, with type
III mucin partially purified from porcine stomach and bovine serum
albumin included as a negative control (all proteins were obtained
from Sigma). The blot was incubated at room temperature on an
orbital shaker in 10 ml phosphate buffered saline, pH 7.4,
containing 0.1% Tween 20 and 5 mg/ml bovine serum albumin for 1
hour. Radio-iodinated AM4 protein was then added to a final
concentration of approximately 500 ng/ml, and incubated at room
temperature for a further hour. The blot was then washed three
times in approximately 40 ml phosphate buffered saline, pH 7.4,
containing 0.1% Tween 20 at room temperature for 10 minutes, and
autoradiographed against X-ray film at -80.degree. C. overnight.
The autoradiograph was developed and the resulting image digitized
with a Fluor S Multilmager (BioRad). Binding by AM4 protein to the
intestinal protein ligands was quantitated using Bio-Rad Quantity
One software by measuring the density of the signal on the
autoradiograph resulting from radiolabeled AM4 protein binding to
the different ligands and subtracting the background density of
blank film. To quantitate relative amounts of protein ligands
blotted, blots were stained with Ponceau S using standard
procedures (Ausubel et al., Current Protocols in Molecular Biology,
John Wiley & Sons, 2001), and quantitated as for the
autoradiograhs. The density corresponding to AM4 protein binding to
individual ligands was divided by the average density of Ponceau S
staining of the ligand to give the relative AM4 bound to each
ligand. Binding of iodinated AM4-GST fusion protein
(3.3.times.10.sup.7 DPM) was compared to binding of iodinated mucus
adhesion promoting (mapA) protein of Lactobacillus reuteri (GenBank
accession number AJ293860; 6.6.times.10.sup.6 DPM) as a positive
control, and iodinated irrelevant HN001 protein (7.0.times.10.sup.6
dpm) as a negative control.
[0446] Results in Table 25 indicate that while the irrelevant HN001
protein did not bind to any of the intestinal adhesin ligands, the
AM4 fusion protein gave a very similar binding pattern to the
positive control protein mapA, with significant binding to mucin
and collagen types I and IV. Therefore, AM4 encodes the HN001
extracellular matrix binding protein. Results represent mean of
relative density of two dots. TABLE-US-00028 TABLE 25 Density of
autoradiographic signals from AM4-GST fusion protein to dot blots
of intestinal proteins, compared to a positive control (mapA) and
negative control (irrelevant HN001 protein). Intestinal Relative
AM4-GST Relative Relative Irrelevant Protein Binding mapA Binding
Protein Binding BSA 0.37 0.76 0.06 Collagen I 1.43 1.02 0.26
Collagen IV 0.94 0.78 0.09 Fibronectin 0.53 0.67 0.09 Laminin 0.65
0.83 0.12 Mucin 1.48 2.57 0.68
[0447] The extracellular matrix binding protein is a surface bound
molecule required for the adhesion of Streptococcus spp. to the
extracellular matrix, exposed during tissue injury (Manganelli and
van de Rijn, Infect. Imm. 67:50-56, 1999).
[0448] The polypeptide of SEQ ID NO: 70 and the polynucleotide of
SEQ ID NO: 28 have utility for processing food products and as
supplements and additives. This binding protein also has other
applications. The attributes conferred by and applications for this
enzyme include: enhanced adhesion to intestinal surface and cell
lines; enhanced bacterial survival in intestinal environment;
altered texture characteristics; enhanced probiotic effects;
reagents to block or modify adherence of bacteria to surfaces; and
development of vaccine carriers.
[0449] These attributes may be produced in food, such as dairy
products, and other applications may be implemented by directed
activity of the binding protein, introduced in a bacterial strain
(including strain HN001, or starter cultures) comprising a
polynucleotide of SEQ ID NO: 28 or a variant, or as an enzyme
preparation comprising a polypeptide of SEQ ID NO: 70 or a
variant.
EXAMPLE 33
Isolation and Characterisation of High-Molecular-Weight Adhesion
Protein from L. rhamnosus HN001
[0450] The full-length polynucleotide sequence of
high-molecular-weight adhesion protein, AL7, from L. rhamnosus
strain HN001, given in SEQ ID NO: 26 and shown in FIG. 67 with ATG
initiation and translation stop codons (boxed), was used to amplify
the N-terminal region of AL7 high-molecular-weight adhesion protein
gene. The primer sequences used (SEQ ID NO: 40 and 41) were tagged
with BamHI and EcoRI restriction endonuclease recognition
sequences, respectively, to facilitate cloning. AL7 sequence was
amplified from HN001 strain genomic DNA, purified, cloned into
BamHI/EcoRI-cut pGEX-6P-3 expression vector, and transformed into
E. coli DH5.alpha. cells according to standard laboratory methods.
The polypeptide sequence of high-molecular-weight adhesion protein
AL7 is given in SEQ ID NO: 68 and shown in FIG. 68. The
high-molecular-weight adhesion protein AL7 was expressed as a
fusion protein with glutathione S-transferase (GST) and expression
was checked by SDS-PAGE analysis.
[0451] Lysates of DH5.alpha. clones containing pGEX-6P-3 expressing
AL7-GST fusion protein, lysates of DH5.alpha. clones containing
pGEX-6P-3 expressing irrelevant HN001 GST-fusion protein, and crude
cell wall cytoplasmic HN001 protein preparations (prepared by
standard laboratory methods) were separated by SDS-PAGE. Proteins
were blotted onto nitrocellulose membranes using a Trans-Blot SD
Semi-Dry Electrophoretic Transfer Cell (Bio-Rad) according to the
manufacturer's instructions. The nitrocellulose blot was then
blocked overnight at 4.degree. C. in phosphate buffered saline, pH
7.4, 0.1% Tween 20 (PBS-T), containing 5% non-fat dried milk.
Rabbit anti-sera raised against HN001 cell wall proteins (supplied
by Dr. Paul O'Toole, Institute of Molecular Biosciences, Massey
University, Palmerston North, New Zealand) were diluted 1:5000 in
PBS-T, 5% non-fat dried milk and incubated with the blot for 1 hr
at room temperature. The blot was washed three times for 15 min
each in PBS-T and incubated at room temperature in 50 ml PBS-T, 5%
non-fat dried milk containing a 1:3000 dilution of a horseradish
peroxidase-labeled antibody against rabbit Ig (Amersham Pharmacia)
for 20 min. The blot was washed six times in PBS-T at room
temperature for 15 min each, and binding visualized using the ECL
Western blotting detection system (Amersham Pharmacia) according to
the manufacturer's instructions.
[0452] Results of the Western blot revealed that the anti-sera
detected a number of proteins from HN001 raised against the HN001
cell wall preparations. While several of these proteins were found
in both the cell wall and cytoplasmic preparations of HN001, these
proteins consisted of bands of approximately 66 kDa and less. In
addition, a number of high molecular weight protein bands were
detected in the HN001 cell wall protein preparations that were not
present in the HN001 cytoplasmic protein preparations. These bands
ranged from approx. 130 kDa to approx. 220 kDa or greater.
Therefore the cell wall antisera specifically detected several
large cell wall proteins from HN001. Of the E. coli extracts, the
only signal came from the lysate of the DH5.alpha. clone containing
pGEX-6P-3 expressing the N-terminal region of AL7. This strong band
was approximately 97 kDa, the same size as the AL7-GST fusion
protein. Lysates from E. coli clones expressing unrelated proteins
showed no cross-reactivity with the HN001 cell wall anti-sera. This
data indicates that AL7 encodes a high-molecular-weight adhesion
protein at the cell surface.
[0453] The high-molecular-weight adhesion protein is a homologue of
the surface-bound molecule of Haemophilus influenzae shown to be
involved in adhesion to human cell lines (Barenkamp and St Geme,
Mol. Microbiol. 19:1215-1223, 1996; St Geme et al., Proc. Natl.
Acad. Sci. USA 90:2875-2879, 1993).
[0454] The polypeptide of SEQ ID NO: 68 and the polynucleotide of
SEQ ID NO: 26 have utility for processing food products, as
supplements and additives, and as reagents for several
applications. The attributes conferred by and applications for use
of this adhesion protein include: enhanced adhesion to intestinal
surfaces and cell lines; enhanced bacterial survival in intestinal
environment; altered texture characteristics; enhanced probiotic
effects; reagents to block or modify adherence of bacteria to
surfaces; and development of vaccine carriers. These attributes may
be produced in food, such as dairy products, and implemented in
other applications by directed activity of the adhesion protein,
introduced in a bacterial strain (including strain HN001, or
starter cultures) comprising a polynucleotide of SEQ ID NO: 26 or a
variant, or as an enzyme preparation comprising a polypeptide of
SEQ ID NO: 68 or a variant.
EXAMPLE 34
Isolation and Characterisation of Periplasmic Binding Protein 1
(PEB1) from L. rhamnosus HN001
[0455] The full-length polynucleotide sequence of a periplasmic
binding protein 1 (PEB1), AJ4, from L. rhamnosus strain HN001,
given in SEQ ID NO: 16 and shown in FIG. 69 with ATG initiation and
translation stop codons (boxed), was used to amplify the AJ4 PEB1
gene from HN001 strain genomic DNA by PCR according to standard
laboratory methods. Primers were tagged with BamHI and EcoRI to
facilitate cloning. AJ4 PCR products were purified, cloned into
BamHI/EcoRI-cut pGEX-6P-3 expression vector, and transformed into
E. coli DH5.alpha. cells according to standard laboratory methods.
The polypeptide sequence of PEB1 AJ4 is given in SEQ ID NO: 58 and
shown in FIG. 70. AJ4 was expressed as a fusion protein with
glutathione S-transferase transferase (GST), bound to Glutathione
Sepharose 4B resin (Pharmacia Biotech), and PreScission protease
was used to cleave off the PEB1 AJ4 protein, according to the
manufacturer's instructions. An aliquot of the purified AJ4 protein
was checked by SDS-PAGE analysis.
[0456] Purified AJ4 protein (10 .mu.g) was then labeled by
radio-iodination with 0.1 mCi iodine-125 (Amersham Pharmacia) using
IODO-BEADS iodination reagent (Pierce) following the manufacturer's
instructions. Radio-iodinated protein was separated from
unincorporated iodine-125 and excess sodium iodide-125 using a
PD-10 desalting column (Amersham-Pharmacia) according to the
manufacturer's instructions, except that the elution was performed
in phosphate buffered saline in twelve 500 .mu.l aliquots.
Radioactivity in eluted fractions was quantitated on a Bioscan
Quick Count QC-4000/XER Benchtop Radioisotope Counter (Bioscan,
Inc.) and fractions containing the first peak of radioactivity
(corresponding to labeled AJ4 protein) were pooled and bovine serum
albumin added to a final concentration of 10 mg/ml.
[0457] To analyze the binding of the AJ4 protein to intestinal
surface proteins known to act as ligands for bacterial adhesins,
different intestinal protein ligands were dot blotted onto a
nitrocellulose membrane using a Convertible Filtration Manifold
System (Life Technologies) following the manufacturer's
instructions. Duplicate dots were blotted of approximately 1 .mu.g
of type I collagen from calf skin, type IV collagen from human
placenta, fibronectin from human plasma, laminin from the basement
membrane of Engelbreth-Holm-Swarm mouse sarcoma, and type III mucin
partially purified from porcine stomach and bovine serum albumin
included as a negative control (all proteins were obtained from
Sigma). The blot was incubated at room temperature on an orbital
shaker in 10 ml phosphate buffered saline, pH 7.4, containing 0.1%
Tween 20 and 5 mg/ml bovine serum albumin for 1 hour.
Radio-iodinated AJ4 protein was then added to a final concentration
of approximately 500 ng/ml, and incubated at room temperature for a
further hour. The blot was washed three times in approximately 40
ml phosphate buffered saline, pH 7.4, containing 0.1% Tween 20 at
room temperature for 10 minutes, and autoradiographed against X-ray
film at -80.degree. C. overnight. The autoradiograph was developed
and the resulting image digitized with a Fluor S MultiImager
(BioRad). Binding by AJ4 protein to the intestinal protein ligands
was quantitated using Bio-Rad Quantity One software by measuring
the density of the signal on the autoradiograph resulting from
radio-labeled AJ4 protein binding to the different ligands and
subtracting the background density of blank film. To quantitate
relative amounts of protein ligands blotted, blots were stained
with Ponceau S using standard procedures (Ausubel et al., Current
Protocols in Molecular Biology, John Wiley & Sons, 2001), and
quantitated as for the autoradiograhs. The density corresponding to
AJ4 protein binding to individual ligands was divided by the
average density of Ponceau S staining of the ligand to give the
relative AJ4 bound to each ligand. Binding of iodinated AJ4 protein
(2.6.times.10.sup.6 DPM) was compared to binding of iodinated mucus
adhesion promoting (mapA) protein of Lactobacillus reuteri (GenBank
accession number AJ293860; 1.3.times.10.sup.6 dpm) as a positive
control, and iodinated irrelevant HN001 protein (1.4.times.10.sup.6
DPM) as a negative control.
[0458] Results shown in FIG. 71 demonstrate that while the
irrelevant HN001 protein showed no significant binding to the
intestinal proteins, AJ4 and the positive control protein mapA
showed significant binding to mucin. AJ4 also showed some binding
to laminin, fibronectin, and collagen type IV. Therefore, AJ4
encodes the HN001 PEB1. FIG. 71 shows the relative density of
autoradiographic signals from AJ4 protein (grey bars) to dot blots
of intestinal proteins, compared to a positive control (mapA, white
bars) and negative control (irrelevant HN001 protein, black bars).
Results for each dot (duplicates) are shown.
[0459] The PEB1 is a surface-bound molecule required for the
adhesion of Campylobacter spp. to intestinal epithelial cells and
is required for effective colonization of the gut environment (Pei
et al., Infect. Imm. 66:938-943, 1998; Pei and Blaser, J. Biol.
Chem. 268:18717-18725, 1993).
[0460] The polypeptide of SEQ ID NO: 58 and the polynucleotide of
SEQ ID NO: 16 have utility for processing food products and as
supplements and additives. This binding protein may also be used to
develop non-food products. The attributes conferred by and
applications for this protein include: enhanced adhesion to
intestinal surface and cell lines; enhanced bacterial survival in
intestinal environment; altered texture characteristics; enhanced
probiotic effects; reagents to block or modify adherence of
bacteria to surfaces; and development of vaccine carriers.
[0461] These attributes may be produced in food, such as dairy
products, and implemented in other applications, by directed
activity of the protein, introduced in a bacterial strain
(including strain HN001, or starter cultures) comprising a
polynucleotide of SEQ ID NO: 16 or a variant, or as an enzyme
preparation comprising a polypeptide of SEQ ID NO: 58 or a
variant.
[0462] SEQ ID NO: 1-83 are set out in the attached Sequence
Listing. The codes for nucleotide sequences used in the attached
Sequence Listing, including the symbol "n," conform to WIPO
Standard ST.25 (1998), Appendix 2, Table 1.
[0463] All references cited herein, including all patent and
literature references, are incorporated herein by reference in
their entireties.
[0464] While in the foregoing specification this invention has been
described in relation to certain preferred embodiments, and many
details have been set forth for purposes of illustration, it will
be apparent to those skilled in the art that the invention is
susceptible to additional embodiments and that certain of the
details described herein may be varied considerably without
departing from the basic principles of the invention.
Sequence CWU 1
1
83 1 3215 DNA Lactobacillus rhamnosus 1 gatcatgatg gggcagcagt
cgccatcaag cagtatgcaa tgggtgaagg ttaataaaaa 60 agcgagtcga
attcctgata atggaagtcg actcgctttt tattttagcc gaaatagttt 120
cgtttaaatc taatctttta agtcaataat tgcctgttcc aactcctgtt tctgagctgc
180 agagatttcc ggatatttta gcggcaaagc ggtgacttcg cggttgatga
tttgggacac 240 aaccagtcgg gagtaccact tatcgtctga cggaatcacg
taccagggat ttgttttcgt 300 ggcggtgtgc tgaatggcat cttgataagc
ttgctggtaa tcatcccaaa agcgccgttc 360 gtgaatatcc gccaatgaga
acttccaatt cttttcggga atttcgattc gttttaagaa 420 gcgatttttt
tgttcggcct tggaaatgtg taagaagaac ttgagcagca agatgccatt 480
gcggtgcgca taggtttcta gcgccttgat atcgttgaag cgtttggccc ataaatcgtc
540 atggacatca gcaacggtgt tgattcccgg caggttttct tttaatagca
attcgggatg 600 aacccggtcg accagcactt cttcataatg ggagcgattg
aacaccgtca gttcgccacc 660 agccgggaaa gcgttatgga tgcgccataa
aaagtcatgg cctagttcaa gctcagtcgg 720 tactttaaac gacaccactg
aggttccctg cggattgacg ccggacatga cgtgttcaat 780 catgctgtct
ttgccggctg catccatccc ttgaaagata atcaagacgc tgtattgttt 840
ctgtgccgcc aagtgttgct gaactttgga gagcaccttg atgttatgat caatgtctgc
900 tttgatctgc tcttttttat tttgaaaatg ttctggcggc gcggtcgcaa
acgcttgaat 960 gttaaaggtg ccagtgccgt caaaacgata tttttccaat
gtcatcttat caccttcaat 1020 ttaagcttag tttcaacata gtagttacgc
caaggatgtg caagcaattg acgccttggc 1080 ggattaaatc tatgctgaga
ttacgacatg aaaacggagg caattgcatg acattaccaa 1140 gaattcaaga
tgatttgtac ctagccgtca atggcgaatg gcaagcgaag acgccgattc 1200
cacctgacaa aagtgttgtg agtgcggata gtaatctgac cgatgatatt cgccaaaaac
1260 tagtggctga tctaagcacg atgacgaaaa cagccaaaac tttgccgctc
cagtatgcag 1320 cgcggttgtt tgccaaagcc aatgaccaaa cccgccgtca
gcagctaggc attgagccag 1380 ttcgtgatcg gataagcttt ttgatggcgc
tcacgacgct tgatcaattt cgcagcgcta 1440 tgcccaaact ggttgctgat
caatacgtct taccgatcag tccttacgtt gatgctgata 1500 tgcacgatgc
cgagcataat attctgaatc ttggcgggcc agacacaatt ttacctgatg 1560
cggcgatgta ccaacatgaa gatgccgaaa atgcggcgga tctggcagcg tggtcgcaga
1620 tggcagctgc catgctggct gcggtaggat tcagtcagac tgatcaaaca
gcatatgttg 1680 aagcggctaa acgatttgat cggcgtttgg ctgattatgt
gccagcaaat gttgacttag 1740 cggtagatag cacgtatgac aatccattga
gctggcaggc gtttgaagat gcggccggtt 1800 atttggggat cccacaagcc
tttgcaactt acatgccgca aacaccggcg aaagtcaatg 1860 cggttgtacc
ggcttatctt ccgcacttaa gcaaactact gacgccggac aattattcag 1920
aatggcacgc atggatggtg attaacgaat tgctaacctg cgccacttac ctcagtgatg
1980 atttacgtca attggccgga cagtatgatc ggtttttggc tggtcaacct
gaggcgtcat 2040 cgtggacgaa acacgctttt gggattgcca acgagtattt
tgacgatgtg attggtcagt 2100 attatggtca aacctacttt ggtgccgacg
ctaaggcaga tgtgacggcc atggttaagc 2160 aaattcttgc gcaataccgc
gtgcagctag aaaacaacac ttggctgagt ccggctacga 2220 agcaaaaggc
gatgcgcaag ttagccacga tgcaagtcaa aatggggtat ccggagcgac 2280
tcttttcctt gtatgatcac ttgagcgtgg atgttgacga tgatttgttg acggcaattc
2340 tgaaacttag cgcacagacg caggcctttt ggtttaaaca gttaggccag
acggtggatc 2400 ggaatcaatg gaatatgccg ggacacttgg tgaatgccag
ttatgatccg ctgaaaaatg 2460 acatcacttt tcccgctggt atcttgcagc
cgccgtatta ctcactcaaa tggacccggg 2520 cggaaaacct cggagggaca
ggcgcaacga tcggtcatga aatctcgcat tcgtttgata 2580 ataacggggc
gctgtatgat gaatatggta atttgcataa ctggtggaca ccagcggata 2640
agcaggcatt tgatcagctg gtaaaagcga tggcggcaca gtttgatggc cgtgactatg
2700 aaggagtcaa ggtcaacggt acactgaccg ttagtgaaaa catggcggat
aacgccggca 2760 tggatgtggc gttggcgtta ctaggcgatc agccggatgt
taaggatctg caggcattct 2820 tcatcactta cgctcgttca tgggccacca
aaatgcgacc ggagcgggct aaaactgttt 2880 tgcggcaaga tgttcatgcg
ccggctacct tacgcgtgaa tgtgccggtg caaaactttc 2940 ctgcatggta
ccaggcattt aatgttcagc cacaagatgg tatgtatcgg caaccacaga 3000
agcggctgac gatttggcat cagtaatatt taaataaaag agttttatgt gaaccttttt
3060 cgagaaccgc gagatcaact gtgtgtcaca ctgttcatgg ggaagcgtaa
acaaaaaggc 3120 aacgattgcc gtgagacaat cgttgccttt tttcaatctt
gggacaggtc gtggtaataa 3180 tgtagccagc cggtttcgcg ttcgccgatt tgatc
3215 2 924 DNA Lactobacillus rhamnosus 2 acggctattg tgacggcttg
tcagagtggg atgggcggta ctggcgacgt ggctattctc 60 agtacggcga
atcggatgaa tctgatgcca tttgctcagg tggcaacacg cttgggtggc 120
gcgattaccg ttattaccat gacggcgatt ctgcggatga tcttttaaat cgactagttt
180 cgaaacttaa ggaggatgat tcacatggca aagaaggatt ttaatcaact
agcgctagat 240 caagcaaaag taaatggcgg aaaattgagt gtggaaccga
aagtaccaat tgagacgcgc 300 gatgatttga gtattgcgta tactccaggc
gtcggggcag tttcttctgc tattgccaag 360 gatcagtcgc tcgtttatga
cttaaccact aagaaaaata cggttgcagt tgtcagtgac 420 ggttcggcgg
ttttagggtt aggcaatatc ggtgccgagg ctgcgatgcc ggtgatggaa 480
ggaaaagccg ctttgttcaa acggtttgct aaggttgatg ccgtgccgat tgtgttggat
540 acgcaagaca ctgaagcaat cattgcggcg gttaaagcca ttgcaccaac
atttggcggg 600 atcaatcttg aggatatcag tgcgccacga tgttttgaaa
tcgaagcacg actcattgat 660 gagctcaaca tcccggtgtt ccacgatgat
caacatggca ctgcgattgt ggtgctcgcc 720 gctttgtaca atgccttgaa
agtagcggat aaaaagattg aagacattcg cgtggtggtt 780 aatggcggcg
gctcagcggg gctatccgtt gcccggcgat tcttggcagc cggagtcaaa 840
cacgtcatgg tggtggataa ggtgggcatt ttagctaaaa agaacgctga tcaactgcca
900 ccacatcaag cgggattgcc ttaa 924 3 1218 DNA Lactobacillus
rhamnosus 3 gtgttaaatc caaggatcgt taaaaaacgg gcttaaaatc aaacgattag
actgtcgggt 60 gacgcaccgg cagtcttttt gcgttaatat aggaataacc
ttttaacacg attcgttaac 120 acgaggaaat ggaggcattc gttaatggca
gatgaagagg caatgttggc aaaggttcaa 180 gcgagctggg cgcaaacggc
tgctcgggat aaggcacggt acgcggatga acgggtaccg 240 gaagatgttc
attgggagac ggaatatcgg tacgaacagt cggctgatcc gcagcaaacc 300
ctgaacctgt actatccggc caaaagacgc aacgcaacca tgccgaccgt catcgatatt
360 catggtggcg ggtggtttta tggtgatcgt aatttgaatc gtaattattg
ccgctatttg 420 gctagtcaag gatacgcagt gatgggtatg ggctatcggt
tgttaccgga tgttgattta 480 cgcggccaga ttcaagacat ctttgctagt
ctgcgctggt tatcgcattt tggccctcaa 540 cgcggatttg accttgacca
tgtgcttttg accggggatt cagctggcgg ccacctggcg 600 tccttggttg
cctgcatcca gcagagtgcg gagttacagg aactctttgg cgtgagtcgg 660
gttaatttca acttcaccct ggtggcgctg gtttgtccag tcgcagaacc aagtaagctt
720 cccgaagcag ccggtgacat gagcgatatg gccgcgtttt atctggacaa
gttaagcggc 780 ggcgatcagg cactggccga tcacctgaat ttctcgcagg
ttgtcaaggg tttggacctg 840 ccgccgttta tgctgattgg cgggcaaaat
gacagctttt acttgcaaag ccaagccttg 900 ttgaaggtgt tcgatgctaa
tcacgtcacc tatacaacga agctatggcc ggcaagtgcg 960 gggccacacc
tcaagcatgt gtttaatgtt caacattggg aatggccgga aagtattgag 1020
acgaacttgg agatgctgcg gacgtttgat gcgttaagca agcagcaaga tcaagctgaa
1080 gaaaacgaat ttgaatagtc tgcggaagtg gcagtcatag cagccgctca
tccggcgata 1140 gaaaaagact cagaggcgat ctgagtcttt ttagattaaa
aaaaccgcgc agtttgaagg 1200 ctacgcggag gaaatggc 1218 4 491 DNA
Lactobacillus rhamnosus 4 ttgttttggg tacgagtacg cacacaaact
attcggaaaa acactagaaa aatctagtta 60 atacgaagga gcagatcagt
catggaaaaa cgcgaattta acattattgc agaaaccggg 120 attcacgcac
gtccggcaac cttgttggta caagcagcta gcaagttcaa ctcagatatc 180
aacttggaat ataaaggtaa gagcgttaac ttgaagtcca tcatgggtgt tatgagtttg
240 ggcgttggtc aaggtgccga tgttacaatc tctgctgaag gcgctgacga
agccgatgca 300 atcgctgcaa ttacggacac aatgaaaaag gaaggcttgg
ctgaataatg gctgaacatt 360 tgaagggaat cgctgctagt gatgggatcg
ccacagcgaa ggcctattta ctggttcaac 420 ctgatttatc atttgacaaa
aagacggttg atgatccttc aaaggagatc gaccggctaa 480 agcaggcact t 491 5
1276 DNA Lactobacillus rhamnosus 5 ccaagtaatc atgccattca gctagcaaac
attgcccgtc aacctgcttc attgacgggc 60 atacataaaa gaacactatt
cattaaagga ggtcgggttt caatgaccca attcaatacc 120 aaactcgttc
atggaccaca actaaatgtc gaccaagccg gtgccatcgt gccaccagta 180
taccaaagtg ccatgttccg ctttgctcct gatggtcagg aaacccactg ggactatgcg
240 cgcagtggta acccgacccg tgaatacctg gaacgtcaga ttgctacgct
agaaaatggc 300 gatgctggct ttgcgttttc cagcggtgtt gcagcgattg
caacggtgct cgcgattttc 360 cccgaccaca gtcacttcat tattggtgat
tcgctctaca gtggcaccga tcgcctcatc 420 aaccagtatt tttctcaaca
cggcctgacc tttacaccgg tggatacgcg tgatctggca 480 gcggtggaag
ccgccatccg ccccgaaact aaagcaattt tctttgagac tttttccaat 540
ccgctcctca aagtcagcag cgtcaaggcc atcagtgccc tcgccaaaac ccatgatctg
600 ttaacgattg tcgacaacac gttcttaacc ccttattacc agcggccact
tgacctcggt 660 gccgacatcg ttctacacag cgccaccaaa tacctcggtg
gccacggtga cctcatcgcc 720 ggcctcgttg tctccgctca ccccgacctc
agcgagaagc tcgctttcct gcaaaacacg 780 atcggtgcca ttttaagccc
gcttgactgt agcctcgtca cccgcggcat tgccaccctc 840 tccgttcgcc
ttgatcgtga aactgcaaac gcccaagccg tcgccgaatt tctagcgcag 900
cacccagacg tcgcccacgt ttactacccc ggacttaaaa acgatcccgg ttacgcatta
960 gcccaaaaag aaaccacggg tgccagcgga ctcctgacga tcaaactagc
cgacaacatt 1020 gatcccttaa agttcgttaa cagcaccaaa attttcgact
ttgccgactc acttggcacc 1080 gtctccagtc tagtcaaact accttggttt
aagctcccgg aagacaaacg cgccgatttt 1140 ggtttgacac cgcaacatgt
ccggattgca attggcttgg aggatcagca ggacttgatt 1200 gacgatctgc
agcaggcact ggttgcagcg gaaaaatagt atccaaaata atatctatta 1260
cttttgctaa ataggc 1276 6 1032 DNA Lactobacillus rhamnosus 6
atgccattgt ctgcactttc ttagcttggg gtcagcggta tctcgaaaaa ttcacatcac
60 gctacaatgc caatgcacaa accacgcaat tataatccgc cattttgaaa
ggaagaaagc 120 tatgttaaag aaaaagttgt ggttcctgtt gccgcttgtg
gccttggtaa ccttcacgct 180 caccgcttgc accagcgcat catctgacac
gtcaaaaaac agcgacgtca ccgccgaact 240 catcaacaaa aatgagctta
ccatcggcct tgaaggtact tatgcgccat tttcttatcg 300 caaagatggc
aaacttgaag gcttcgaagt ggaactgggg aaagccttag ccaagaaaat 360
cggggttaag gcaaaattcg tgcccaccca atgggattcg ctgattgcag gattaggcag
420 ccagaaattt gatctcgtac tgaatgatat tagtgaaacg cccgcacgca
aaaaggtcta 480 caacttcacc actccgtaca tgtactcgcg ttatgcctta
ataacccgca gcgataacac 540 caccatcaaa tcgcttgccg atattaaagg
caaaacattt gtcgaaggca ccggtacacc 600 caatgccgct ttagccaaaa
aatacggcgc taagatcacc ccgtctggcg actttaccgt 660 atcgcttagc
cttgtgaaag aaaaacgcgc agacggaacc atcaacgcct cggctgcatg 720
gtatgccttt gccaagaata actcaaccgc gggcttaaag agtcaaaccc tcaaagatag
780 tgtcgttaaa cccgatgaag tagctggcat ggtcagcaaa aaatcgccta
aactacaagc 840 cgcactttca aagggcattc aagaactacg caaagacggc
acgttgaaaa aactgtcgca 900 aaaatatttt ggcaccgatt taaccaccaa
gtaatcatgc cattcagcta gcaaacattg 960 cccgtcaacc tgcttcataa
acgggcatac ataaaagaac actattcatt aaaggaggtc 1020 gggtttcaat ga 1032
7 1886 DNA Lactobacillus rhamnosus 7 aacatcaggg tggtaaaatc
acactgatta aggaacgggt tgtcggcttg aacgactgaa 60 aacttcgact
tcggtcatct aaaggagaaa actatgccag atgtacgttt tcacagcgtc 120
tttgatatta ttggaccggt tatggtgggg ccaagtagct cacatacagc cggggcagcg
180 cggattggta aagtcgtgcg cgacattttt ggcgaacccc cggagacgat
tacgatttac 240 ctttacgaat catttgccaa aacctatcgc ggtcatggta
ccgatgtggc gctagtagca 300 gggctgttgg ggatggcacc cgatgatccg
cggttgccgg aatcgctgaa gttggcctat 360 gaccaaggca ttaaagtgag
ttttgtgccg aaaagcgata aggttgatca tcctaacacg 420 gcacatattg
tcttgcaagc cggtgatcac cggttagcgg tcactggggt ttccattggt 480
ggcgggaata ttcagatcac ggaaatcaat gggtttaaga tatcgttgag catgggtcag
540 ccgacttata tcaccattca tgacgatgtg ccggggatga ttgcacaggt
caccaagatt 600 ttctccgatg ccggcattaa tatcgggaca atgacggtga
cccgcactgc taaaggggaa 660 caggcaatta tgatcattga aacggatgat
tatcatgatg atattttggc caaattgaaa 720 ttattaccgc atatgcgcaa
tgtcacttac tttgagtgat gacgcgctaa caactggtta 780 cgaactggct
aataaaggag cttatcatgt tttataccgt taaagaactt gtagaacaaa 840
gtcatgcctt ctcctcggtt gccgaactca tggtgcatac ggaagtcgaa aactcaacgc
900 ggactgaagc acagatccgt catttaatga gccgtaatct ggaagtgatg
gaacgctcgg 960 ttaaggaagg cattgccggg gtcaaaagtg tcaccgggtt
aaccggcggc gaggccaaaa 1020 agctgaacca ttatattgct gatgaccggt
tcatgagcgg taaaccgatc atggaggctg 1080 ttcgcaatgc agtggcagtt
aatgaagtga acgctaaaat ggggctgatt tgtgcgacgc 1140 cgactgcggg
atcggcagga gttctggccg gtgttttgtt ggcgatgcgt gatcgcctgc 1200
acctgacgca tgatcagcag cttgattttc tttttaccgc tggtgcattt ggcttggtca
1260 ttgcaaataa tgccgggatt gccggagcag aaggcgggtg ccaggaagaa
gttggctcgg 1320 ccagtgcgat ggctgcggcg gcgttggttt gtgctaatgg
cggcagtgcc gaacaggcag 1380 ccaccgccgt tgcgattacg ttgcaaaaca
tgctggggtt ggtttgtgac ccagttgccg 1440 gcttggtgga ggttccgtgt
gtgaagcgaa atgcattggg agcaagtcaa gccatgattt 1500 ccgctgatat
ggcattggcc ggttgcatca gtgtgattcc ggccgatgag gtgattgaag 1560
cggttaaccg cgtcggcatg cagttgccag caacattgcg ggaaaccggc gagggcggcc
1620 tagcaacgac accaactggc ttacggctga aagaacaaat cttcggcaaa
aagtaattgt 1680 gattcaatga cggcacgaca aatttttgcc cggcatgagt
tttatttaaa cggcgttact 1740 ggcaacaagg tatttggaaa gggtcaatcg
tgattaattt atatattatt cgacatggtg 1800 aaacagcagg caatgtgcgc
cgcttaattc aaggcgtgac gaattcacac ttgaatgcgc 1860 gcggacgtaa
acaggcgtat gctttg 1886 8 1350 DNA Lactobacillus rhamnosus 8
gtgaaggaaa aatgagtcgc ttaaaagagc gcgataaaat caacaaatat tgacaaccga
60 ttgccagcca gcgctcacgt ttgaagctcg gccaaaccaa acaagatcac
aaggaggcgt 120 tgtttatgtt taaacccacc attcatcaac ttcatcccta
tacgccagaa aagcctcttg 180 ccgtattaaa agaagaactt ggcttgccac
agctggtgcg gatgtcagca aacgaaaacc 240 cattcggtac cagcgtcaaa
gttcagcagg ccgtgaccaa ctggaatttt acgcaaagtc 300 gtgattaccc
cgatggctat gccagtcaac tacgcaccgc ggtggcaaaa catttagacg 360
ttgccgcaga gcagttggtt tttggcaatg gtctggatga agtcattgcc ttaattgccc
420 gcactttttt gagcccgggg gatgaagtca ttgaaccatg gccaacattt
tccgagtacc 480 gcttgcatgc ccaaattgaa ggggccaccg tgattgatgt
gcccgtcact gaaactggca 540 attttgattt atctgcaatg gcgcaggcgc
taaccgcgaa aacgaaactg atttgggtgt 600 gcaacccaaa taaccccacg
ggcacgctgc tgtcaattgc gacactgacc gaatggctgc 660 gacagatacc
aaaagacgtg ctggttttaa tggatgaggc ttatattgag ttcactgatg 720
actatccagc cacgagcgct atcagcttat tatcaaagtt tccaaacctc gtcgtgctgc
780 gaacattttc aaaaatctat ggactggcga atttccgggt cggcttcggt
gtttttccta 840 aacaacttgt taactacttg caaaccgttc ggctgcctta
caatttaagc agcattgccc 900 aagttagcgc acaggcggcc ttggctgatc
aagattttgt cgcgatgaca cgcaagcgag 960 tgcagcaagc gcgcgatagt
tgggaacgct ttttaaccca aactggactg ccacacaccc 1020 ggagccaaac
caactttcaa ttctttcagg ccccaaaaat gcaggcatcg gctttaaaaa 1080
agcgcctgct acaacaaggt tttcttgtcc gtgatggctt aaaacccggc tggctgcgcg
1140 tcacgtttgg cactgaggta caaaacacgg cggtacagcg catcattgaa
acttttcagg 1200 cagaactcac tgggccaaat gcgctgaagt gattggaacc
gccaccatgc aggcgtaaac 1260 taaaggtgtg gttaatggct catctgaaag
gaagcattta ttttgaaaat tgccaaatta 1320 aacaaccatc cctatctgat
aacgtctgca 1350 9 1275 DNA Lactobacillus rhamnosus 9 aaagcaatcg
gttcgatcat catcgcattt gttgccatga ttttggcttt gctttggcca 60
ccgttaacga tcatactgga cttggtaatg ttactcttgt gggccatccc ggatcagcgg
120 gttgaacggc atttgctaca tggcccgaaa aactaaactt tgtgaaaagg
ggtttttatc 180 ttggcaagaa ccattggtat tatcggtatt ggacatgttg
gggtgacaac agcatttaat 240 ctcgttagca aggggattgc ggatcgtctg
gtgctaattg accaaaaggc tgatttagct 300 gaaggcgaaa gttatgattt
gaaggatgca cttggtggat tgccgactta taccgagatt 360 atcgtcaatg
attacgatgc tttgaaagat gcagatgttg tcatttccgc ggttggcaat 420
atcggtgcga tttcaaacgg cgatcgaatt ggtgaaaccc aaacgtcaaa acaagcatta
480 gacgatgtgg caccaaagtt gaaagcgtcc ggattccatg gcgttttgct
ggatatcacc 540 aatccttgtg atgctgtcac cagctattgg caatatttac
ttgacctacc aaagtcccag 600 attattggca ccggcacctc gctggatact
tatcggatgc ggcgcgcggt tgctgaatcg 660 ctaaatgtga atgtcgccga
tgttcgcggt tataacatgg gtgagcatgg tgagtcacaa 720 tttacggcgt
ggtcaacggt gcgggttaac aacgagccaa tcacggatta tgcgcaagta 780
gattatgatc aattagctga tgcggcgcgg gctggcggct ggaagattta tcaggccaaa
840 cattatacca gctacggtat tgccaccatt gctactgaaa tgacacaggc
gattatcagt 900 gatgccaagc ggatttttcc gtgcgctaac tatgatcctg
aattcggtat cgccatcggt 960 catccggcga cgattggcaa gctcggtgtt
gttaacacgc ctaagttgaa gcttaccgat 1020 gaagagcgtg ctaagtatgt
tcattccgcg ggcatcatta aagctacagt ggaaaagatg 1080 aagtaagatt
aatccagtag cattgatgtc atgcataaaa agacgccaaa ttgtgaccgg 1140
tattctctaa cgttttactc caacgttgag ggtgctgatc aaatcggcgc ctttttacta
1200 gagttaattt daatgttacg ccttaataag gagtttttcg ggtatggtta
aaaaatatac 1260 gttggtgact gttga 1275 10 1536 DNA Lactobacillus
rhamnosus 10 ttcgaagttt aaagaactag gtttggatca tgatctctta aaggcaatcg
cccagtcagg 60 ttttgaggaa gcgacgccga ttcaagcgga gacgatccca
ctggttctgg aaggcaaaga 120 tgtgatcggt caagcccaga ccggtaccgg
gaaaacggca gcatttggct tgccaattct 180 gcaacacatc gataaagccg
accggagtat ccaagcattg gtcatttccc caactcggga 240 attggcgatt
cagacccaag aagagcttta ccgtttaggc cgcgacaaga agatcaaggt 300
tcaggctgtc tatggcggcg ctgatattcg ccgccagatt cgtcagcttg ctgaccatcc
360 gcaaattgtg gttgggacac ctggtcggat tcttgatcat attggtcgtc
ataccttaaa 420 gttggaacac cttgatacct tggtgttaga tgaagccgat
gaaatgctcg atatgggctt 480 cattgacgat attgaaaaga ttgttgaaca
aatgccgacc gagcgtcaaa cattactgtt 540 ctccgcgacg atgccggcag
cgatcatgcg cttaaccaac aagttcatga aagaacctgt 600 gattgtcaag
attaaggcta aggaactgac agcagatacc gttgagcaat attatgttcg 660
ggccaaggac tatgaaaagt tcgatgtcat gacacgactg tttgacgttc aggatccgga
720 cttggcactg atttttggac ggaccaagcg tcgtgttgac gaactgacac
ggggattaaa 780 ggcacgcggc tatcgggctg aaggtattca cggcgattta
acccagcaaa agcgaatgag 840 cgttttgcgg cagttcaaga gcggccaatt
ggattttctg gttgcaaccg atgtcgctgc 900 tcgtgggttg gacatttctg
gtgtcaccca tgtttacaac tatgatatcc cgcaagatcc 960 ggattcctat
gttcaccgta tcggtcggac gggacgcgcc ggacataaag gggtatccgt 1020
aacctttgtc acgccaaatg aaattgaata tctgcacacc attgaagatc tcaccaagaa
1080 gcggatgtta cccatgaagc cgccgacagc tgaagaagca ttaatgggcc
agatctccag 1140 cggcttagca accatcaagg aacaagttga agctaacgat
accgaaaagt atgaagcaat 1200 ggctgaaacc ttgttggaaa actacacccc
gttgcagctg gtttcggcgt atctcaaggc 1260 agtcagccct gacgatgcga
gtgccgttcc ggttaaaatt acaccagaac gtccattacc 1320 acgccgcggc
cgcaacaatc acggccatgg caacaatcgt ggcggttata aaggcggcta 1380
caaaggcaag cgacgcgatg gcggctatca aggtaatcgc gatggcaagc gcagttacga
1440 caagaagcgc aactttggcg acaaacgtaa aaacgttaag cgtaatttca
aaatccgtac 1500 gggtgaataa tcaccagtac gttaatagac cggtca 1536 11
1409 DNA Lactobacillus rhamnosus 11 tatgacgttg cgtgtcgata
ggcaaatgga ctatgctatt tgcatgctat tataacgcgt 60 ttgccagcgt
aaaagtcagt taggcaatct tttagttgta
gccgtctaac tccgacttct 120 aactgcatcg gttcgcgttt acatcataat
gcgctctcct gcccagaaat cgggtttggc 180 tcgcgcttac tttattaagg
agatttgtat gacattgcaa cctttaaacg aacaactacc 240 tgccatcgag
gttagtgaga ttcgacaatt tgacgaaagt gtcagtgata ttcccggtat 300
tttgaaactg acgctaggcg aacctgattt caacaccccg gaacatgtta agcaagccgg
360 gatcaaagcc attcaggaaa attactcgca ttataccggg atggttggtg
atccggagtt 420 acgcgaagcc gcacaacatt tttttaaaac gaaatatgcc
actgactatc gggctacaga 480 tgaaattctg gtgacagtcg gggccactga
agcactggca accgccatta cgacgatcag 540 tgatccgggt gatgccatgc
tggttccgtc accaatttat ccgggctaca ttccgcttct 600 gacgctgaat
cacgttacgc cgctttatat ggatacgagt aaaaccgact ttgtcttgac 660
ccccgaactc attgaggcca ccatcactgc aaatcctgac gctaaaatca aaggcattat
720 ccttaactat ccaagtaatc ccaccggtgt cacgtatcgg gcggcagaag
ttaaagccat 780 tgcggacatc gccgctaaac ataacctcta cattatctgt
gacgaaattt attctgaact 840 gacttatggt gagccgcatg tttccatggg
acaatttgcc tacgatcgta catttattgt 900 caacggtctg tctaaatcac
atgcaatgac cggctggcga atcggctttt tgatgggtcc 960 ccagcagtta
atcgcgcaag ccaaaaaggt gcaccaatat cttgtgactg ccgcaacgac 1020
cattgcccag cgcgctggta ttgaagctct gacgaacggt gcagacgatg ctcaggtgat
1080 gaaagcagct tacgttaaac gccgtgattt tgtttatgcc gccctcatcg
acatgggctt 1140 tagcgtggct cgtcctgatg gtgcctttta tctttttgca
aaaattccga cccaactgca 1200 tctaagctca cgcgaattta cgcacgcctt
ggcacatgaa cagaagttag ctctgatttc 1260 aggtaccgct tttggccccg
gcggcgaagg ttatatccga atcagttacg cggcatcaat 1320 gaccgatctt
caagaagccg ttaagcgatt gcgcgcgttc atggccagcc acatcggcta 1380
atcaagcgta aacggaaaga atccgcacg 1409 12 1247 DNA Lactobacillus
rhamnosus 12 gtgcatttag caaaaagaat cctcaacgtc gcaccgtcag cgacattggc
cttaagtaat 60 cagacgaaag acttaaaggc aaaaggtgcc gacgtcattg
atttgtctat tggccaacca 120 gatttttcaa cccctaaggc gattgatgac
gcagctattg cggcgattca ggctggtaat 180 gccagtttct atacggcagc
aaccggtatt ccggaattaa agcaggcgat tagtgaccgg 240 atatttgccc
aagacggtat tcgttatgat catcgtcaaa tcgttgcaac caccggcgct 300
aagtttgctt tgtatgcctt atttcaggtt ttcttaaacc caggcgatga ggtgctgatt
360 cctgttccat actgggtttc ctacgaggaa cagattaaat tggcgagcgg
cgtgccacat 420 ctggtcatgc cggcagtcgg acataaagtc agtgtcgatg
atcttgaggc ggctcggacc 480 gataaaaccc gggcattgat tatcaattcg
ccacaaaacc caagtggcgt tgtctatgat 540 cgcacggaac tgaccttaat
tggcaattgg gcgctgaagc atcatatttt ggtagtgact 600 gacgatattt
accgagatct gatttataac ggtacgactt acacctcaat gattagtatc 660
gatcccgata tcgcagcgaa tactgtttta atttccggcg tctccaagtc atatgcgatg
720 acgggttggc ggattggtta tgcggccggt ccggaaaagc tgattcaggc
catggcgacc 780 tttattagcc acacgacctc taatccggca gcagtttccg
aatacgccgc ggtggcagct 840 ttaactggcg atcagcaggt tgttgaaaag
atgcgccgtg cttttgaaga acggctgaat 900 cttttctatg atcttctggc
agatattccc ggtttcgata tgggagataa accgcaaggc 960 gccttctatc
ttttcccgaa tattaagcgt gccgctcaat tgagtcatta tggtacggtt 1020
gatgatttta tcagtgcact gttgaccgaa accggggttg ccattgttcg tgctggacgg
1080 gcgtttggca tgccggatca tgcgcggatt agttattgta aagatttggc
cagtctgaaa 1140 gaggccgccc ggcgtatccg ggagtttgtt ggtaaataat
tattgaagtg gggagttaac 1200 gcatgacgga aaagattcgc attattgatg
caaaagaaca tgtgaac 1247 13 650 DNA Lactobacillus rhamnosus 13
atgcaaagag cagaattaat caccgcgatt gtgacaccgt ttaacgaccg cgatgaaatt
60 gactatgata gtatgcaacg gttagtcgat catctcattg atcaaggcac
tgacgggttt 120 gtggttggag ctacgacggg tgaagggcct acgttgagtc
atgatgaaaa gatcaccctt 180 tacacccgtt ttgtggccat ggttcacggg
cgcgcactcg tcattgccaa ttcagggtct 240 aacaacaccc gcgaaaccac
tgattttacg catgaagtcg gtggaattgc cggaattgat 300 gctactttgg
ttgtggttcc gtattacaac aagccggatc aagatggcat gatcgcgcac 360
tataccacgg ttgcggcaag tgcgcaaaaa ccgatcatta tttacaacat tccagggcga
420 accggcgtaa acatgttacc ggaaaccgtg gcaacgctgg cacaaaaccc
catgattcaa 480 gggatcaagc agtgcggcag tctggcagca ctcagcgata
tcatcgaccg aaccaaacac 540 gatgccttca atgtctggac cggcgaagat
gctcaagcgc tgacgatcaa aacactgggc 600 gggatgggcg ttatttcagt
tgcctcccac ctatatgccc atagcatccg 650 14 768 DNA Lactobacillus
rhamnosus 14 ctacaagaaa ttttccaacc ccacaaccaa atgatccgct gcctgaacct
tgcgaatggc 60 aacggcgacc ccttgcatga agctttggcg atcgaaggag
tcttggcgga tggtgagggc 120 ttcaccggga ccgccgaaga ggacttgttc
gtgggcgatg taacctggta agcggacggc 180 gtggaccggg acgtcatcaa
tgcgttggcc gcgggcgtcg ttgtcgatgg tggacaatgg 240 cttttgggtg
cgtccggcgg cgattttgtg cgcagtggcg atggcggtac ctgatggcgc 300
atcggctttg tcctgatgat gcatctcgat aatttcggcg tcagggaagt aggcggcggc
360 ttcctgcgcg aacttcatta agagaaccgc ggaaaggccg aagtttgggg
cgattagacc 420 gccgatatga cgggcttggg cgagttcgat taagcggttt
tgatcggctt gcgtcatgcc 480 gcttgtgcca acgactgggt gaatgcctgc
tttgatcgcg gcttcaatgt tggcagcgac 540 ggcagtggga ttggtaaaat
caacccacac atcggcaatg tcgggattga gctgatcata 600 gctcgtgagc
acttttgtat cagctggtag tccatatttt tgggcatcag cggcagttgc 660
tttgggatca aaaacggcac ttaatgcgaa atctttttgt gactgaacca ttttgactgt
720 tttttgaccc atggcaccgc gaaaaccggc gacaagaacg tgaatcat 768 15
1277 DNA Lactobacillus rhamnosus 15 actaatgtgg atgacggcgt
ggcgaacttt ttaacggatt tttttgagaa gtgagctttt 60 tccgtaaaaa
gtggggtttc tggttgattg ttagcgaaac gtttgccacc atagagatgg 120
taaacgtttt tattttgcgg tcgtttgagg agggctttaa tcatgtatca tgcagcagct
180 gatcgttatg agaaaatgcc ggttcgccat gctggtaaga cagggttgat
gttgccggtt 240 atttcgttgg gattgtggca gcattatggc aacttggatc
catttggccc gcgacgctcg 300 gtgattttgg atgcgtttga tcgtggcgtt
tttcattttg atgtcgctaa tcattatggt 360 aatggtgatc gtgaaccggg
atttggctct agtgaaaggt tactcgggca gattctggcc 420 acggatttaa
aaccgtatcg agacgaattg gtgattagta ccaaggtggg ttatgagatt 480
caccctggtc catacggtgt cgggacgtcg cgtaaagcag ttattcaagg cttgaatgat
540 tcactcaagc gcttgcagtt ggattatgtc gatatttact atgcccaccg
atttgacgat 600 accgtggcct tggaagagac ggttaatgcg ctggatcaaa
cggtgcgtga cggtaaggcg 660 ttgtatattg gtatttccaa ctatgatacg
aagcagacca aagaagcaat tgcgatgttt 720 aaagatctgc acacgccttt
tgtactgaat caatacagtt acaacatgtt taatcgcacc 780 gctgaaacgt
ccggcttgat cgatgcatta aaagctgatg gtgccgggtt gattgcatac 840
ggaccgttat cagaaggctt gttatcagat cgctacctaa agggaattcc ggatactttc
900 aaaatccatc caaccaacaa ggccactttt gctaagggca aagaggctgt
ggttaagcaa 960 ctaaatgcgc ttaatgaaat tgcgcatgat cgtgaccaaa
ccctgagtca aatggccttg 1020 gcgtggttgt tacgggatcc ggttgtcaca
agtgtgatca ttgggacgac ctcagttgaa 1080 caccttcagg ataaccttaa
agcaacggaa catctgacct ttactgctga agagattcaa 1140 caaattgatg
atattttaaa tgcttagttg acgtttggct gtaaaaggct aagcgtaagt 1200
ataaaaaaac ggcttcggag tgttttttga ctccggagcc gttttatttt tgaggaacaa
1260 tgcttgacag gtgctct 1277 16 964 DNA Lactobacillus rhamnosus 16
gcaatgacca cacaatccgg cttctaccca cgctggctgg cgctcacgag gagggacatt
60 aaaatggcaa aaatgtggaa acgcatgctc ctgccactgg tgttgttact
attgatgata 120 ccgttaagca gctgtggcaa aagtgtggcg gatcgtgata
ttttagcgaa cgccaaggca 180 accaatacga ttatttgggg cgtcaaggcc
gatacccgtc tgtttggctt gatgaacatt 240 aaaaccggta aaattgaagg
ctttgatgtt gatatggcca aggcgattac caagcagatt 300 ttaggcaaaa
aagggaacgc ccagctggtt caggtgacca gtgatacccg cgtgccgatg 360
attaaaggtg ggaacctgga cgcggtgatc gctaccatga cgattacccc ggagcgccaa
420 aagattctgg acttttccga tgtttacttt aatgccgggc aaagtctttt
agttaaaaaa 480 ggcagtccga ttaagtcagt gaaggatttg aagaaaggca
ccaaagttat cggcgtgcaa 540 gggtccaatt cagttgataa tgttaaaaaa
gctgctcccg acaccactgt tctgcagtta 600 gccgattatg cgcaggcgtt
taccgctttg aaatcaggcc aaggtgatgc cttgaccact 660 gacaatggga
ttttatacgg gatgtcagaa caggataaga actatattgt caccgggggc 720
accttcacta aagagccata cgggattgcg attaacaaag gccagaagcc gtttgtcaac
780 gcggttaata aggcgatcaa acaactcaaa caaaacggga cttatgcaaa
gctaatcaag 840 aagtggttcg gcgatgtgcc aggattcagt cttaaggagg
tggaataaca tgtggtcaat 900 tcttaccaat aattggaaca cctttctttc
cggacttggt ttcacgttag cagcgagcat 960 ttag 964 17 1263 DNA
Lactobacillus rhamnosus 17 ggatggtgca ggggcttagg cttctgtgcc
tttttagaaa gaagcgatga aattgacaat 60 ttatgacttt gatcatgtta
tcgatcgccg gggtacgttt agcactcaat gggattatat 120 tgctgatagg
tttggccgta acgatatcct gcccttttcg atctccgata cagattttcc 180
agtaccagtt gaagtgcaag atgcgctaaa agaacggtta acacatccaa tttatggcta
240 tacacgatgg aatcatgcta cttacaaaga cagtattgtt cactggttcg
agcgtgatgg 300 tcatacaaag ataaacccgg attggattgt ttatagccct
agcgttgttt ttacgattgc 360 tacactcatt cgaatgaaga gcgatcccgg
ggacggagtg gctgtgttta cgcctatgta 420 tgatgccttc tatggtacga
ttaaacagaa cgatcgagtg ttgatcccga ttcgattagc 480 agctgcagat
gaaggctatg tgattgattg ggatagtttg gcaacggtac ttgctgaaaa 540
gcagacaaaa atattcttac taacaaatcc gcataacccg acaggacatg tttttacaaa
600 atcggaatta gcacgccttt atgacttgtg tcaggcagcc catgttttct
tgatctctga 660 tgatattcac cgcgatattg tttatccggg tcattcgtac
gaaccaatga caaatgtcgg 720 cacaagtgat gttgcactct gctgctcagg
gtcaaagaca tttaacacac caggcctgat 780 tggctcatat gccttcttac
cagatcatga tgtaagggca caatttttga cggaattaaa 840 gcagaaaaat
gctctgtctt ctgtaagcat ctttggcatg ctggcgcaaa ttgcggctta 900
taacggttca gaggattacg tggaacaact gactgcctat acaaaaaata atatggagtt
960 ggttgctagt tatttagagg aaaatttgcc ggaattgcag ttttcgttac
cggatgccac 1020 gtacttagcc tggataaatg tgtctaaact gagattaacg
tcagaggaac ttcaacatcg 1080 gttagtaaac ggcggccatg ttggcattat
ggcgggcaaa acttatggtg ataccagata 1140 tctaaggatg aatattgcct
gtccaaagaa gaagttagtg atggggctag aacgtttaaa 1200 gaagggaatt
aggggataat atgctcttac tcagagaaat caaaatctta cgccgcctgt 1260 ccc
1263 18 1356 DNA Lactobacillus rhamnosus 18 atgactgatt gggtacttga
tgacggtgga catggttcta ctggatgcgt acaatgacaa 60 caaaagcaag
aaagcaggga tcattgatgg aagatttgcc aactgatatt gcaacgtttg 120
tggacacgca cttagttgat cgccataata gcaatgctgt gaagtgggac ggtctgaaag
180 aagaatttgg ccgggctgac ttgttgccta tgtggattgc cgacactgag
tttaaggcgc 240 ctcaagcagt tttggatgca ttgacagttc gcgtcaagga
agggacgttt ggctattcca 300 ttcgcccgca gtcttattac gaagccttca
ttaactggca aaaggaacga catggcatta 360 cggttgaacc tgagtggatg
cgttttggcg ttggcgttgt caaatcactg tatgcgatgg 420 tgaactggct
gacagaacct ggtgatccgg tcctcatcat gcagccggtt tattatccct 480
ttatgaatgc cattaatgat cttggacgta aagtcgtatc agttgacttg caattaaccg
540 ctgatggttg gcgcatggat tttgaccaat tagaaaagac cttggcggcg
aatgaaatta 600 aagcgatgat tctgtgttca ccgcacaatc cggttggtcg
gatctggacc cgagatgagt 660 tagaacaact ttttgccatc acaagtcggt
atgatgtgac agtggtttct gatgaaattc 720 acggtgatct tgaagtgagt
gggccgaagt ttacatccgc tttacaggtc gctgaaggta 780 aagctcgaaa
aaagcttgtt gtgctcaatg cgccgtcaaa aacatttaat ttagccgcct 840
tgctgaattc acacattatt attcccgatc aagcgttgcg tacgagttat gatgccttca
900 ttaagcagct gcatccggtt gatacgagct tgatggggca agtggccggt
gaagctgctt 960 atcggcatgg cgctgcttgg ttagatcagg tcttacaagt
ggttcgctac aattatcggc 1020 aactgcaagc tggtttagcc gcggcggccc
cacaagcgac cctggccgac ttacaaggga 1080 cttatttggc ttatgttgat
atcggtgctt atgttgcgcc aagtcagatc aaagactttg 1140 ttgaaggtgt
gtgcggattg gctgttgatt atggtgcatg gttttcaccg caaacggcaa 1200
cttatattcg tttaaattta gctactgatc ctaagcttgt tgccgaggcg attaaccgac
1260 taaccactca tttggcacag cagccgcagc ggtgatcggg acaagaatta
aattgccttt 1320 ttcaagataa aactcgaatt caaagagacg gaatgg 1356 19
1254 DNA Lactobacillus rhamnosus 19 tatagcacgc caagccaagc
agctcgcagg tggtttttgg gttaaagctt ctattattga 60 ctgactttct
ttgagtttca tgaaaatgat cggcgaaaaa tgtctattat tgtcattttg 120
ttctatacta atcgtgtact gaacatttaa ggattaccta ggaggtattt ttacatgtct
180 gttaaactta ctgctggtca gttagagcat ttgaagcaat tgtccaatga
caacaacgtc 240 atctcggctt tagccattga ccaacgcggt tccctgaaga
agatgcttgc agctgcagcg 300 aacaagccag ctgacgaaac cacgattgtt
gatttcaaga aagctgtttc tgaagaatta 360 accaaatacg ccagcgcgat
tctgcttgat ccagaatacg gcctgccagc tgccaaggtt 420 cgcgatccta
agtccggcct cttgctttcc tatgaaaaga ccggctacga tgcgactgaa 480
cctggccgtt tcccagattt gattgataac caaagtgctt tgcgcatcaa gaacgaaggc
540 ggcgatgcag tcaagttctt actgtacatt gaccctgacg aacctgatag
tatcaacgat 600 cgtaaatatg cgtttgttga acgggttggt gctgaagcta
aggctaatga tctgccactg 660 ttcttggaat tagtttccta cgatggcaag
accaacgaaa ccggcaccgc tgcatgggca 720 aaagcaaagc ctgaaaaagt
tatcaagatc actaaggaat tcagcaaggc gcaatacaac 780 gtttctgttt
tgaagcttga agttccggtt gatcaaaagt ttgttgaagg ttacaccgat 840
gaaggcgtaa cgccggttta cagcaaggaa gaagctgcta agtactacaa ggctcaatcc
900 gatgcaaccg atttgccatt catcttcctg tccgctggtg tttccaacga
attgttcctt 960 gaagaactca aatttgctaa ggaagccggt tcaaccttta
acggtgtgct ttgcggccgg 1020 gcaacctgga agccaggcgt taagccattt
gctgctgaag gcgaagctgc cggcaagaag 1080 tggctgcaaa cggaaggtaa
agctaacatc gatcgtttga acaaggtttt ggctgacact 1140 gctactcctt
ggacagacaa ggttgaaggc taattctttt taactaatta atcgttcaaa 1200
aaccagccac agatgcggct ggttttttat atggtgagcg tgagccagcc cgct 1254 20
1482 DNA Lactobacillus rhamnosus 20 tctggtttca atattaaaca
gccttctggc aaaaaggaga agaatatatg tctatcatta 60 ctgatgtatt
ggcacgcgaa gttttagact cacgtggcaa ccctactgtt gaagttgaat 120
tgtataccga agatggcggt ttcggccgcg cattagttcc atcaggtgct tcaaccggtg
180 aacatgaagc cgttgaattg cgtgatggcg ataaggatcg ttttggcggc
aagggtgttt 240 tgaaggccgt tgaccacgta aacaatgaaa ttgctaaggc
tgtgattggc cttgacgtca 300 ccgaacaacg cttgattgac caaaccatga
tcgatcttga tggcacgcct aataaaggca 360 agctcggtgc caatgcgatt
ttgggtgttt ccttggctgc tgcccgtgct gcggctgatg 420 aagttggtct
gccattgtat caatatcttg gcggcccgaa tgctcatgtt ttgccaacgc 480
caatgatgaa cgttcttaat ggtggtgcac attcaactaa caccgttgac ttccaggaat
540 tcatgatcat gcctgttggt gccaagagtg ttcgtgaagc cgttcggatg
ggttcagaaa 600 ccttccacgc attgcaggca ctgctcaaga gcaagggtga
catcactgct gttggtgatg 660 aaggcggctt tgcacctaac ttgaaggata
acgaagaagc tttcgaattg cttgttgaag 720 cgatcaagaa ggctggctac
aagccgggtg atgacattgc tttggccttc gacgttgctg 780 cttcagaaat
gtacgatgct gataccaaga cgtacacaac caagtggtcc aaccctgaca 840
agaagtacac aaccgaagaa tggaccaaca tgattgacgg ctacattaac aagtatccga
900 tcgtttctgt tgaagatcca atcgatgaaa acgactggga aggctggcag
acattcaccg 960 agaagatggg cgacaaagtc caaatcgttg gtgatgacct
gtttgttacc aacaccgatt 1020 acctgaagaa gggtattgac atgggtgttg
ctaactccat cctgatcaag ttgaaccaaa 1080 tcggtacatt gacagaaacc
ttcgaagcaa tcgaaatggc caaagaagct ggttacacgg 1140 ctgttgtttc
acatcgttca ggtgaaaccg aagataccac gattgctgac ttggttgttg 1200
caaccaacgc cggtgaaatc aagactggtt caatgagccg gactgaccgg attgccaagt
1260 acaatcagtt gatgcgcatc gaagatcaat taggtgctca atcacaatac
aagggtcgca 1320 agtccttcta caacgttaaa gcaattgact aattaacgct
tgacgttaac atgaaaagca 1380 cgtcacttca aatggtggcg tgttttttct
attcttagct taagcaaaag atgaacttgc 1440 tcacgctttg tgactgaggg
ctgtctggtg ccggtgcaag ca 1482 21 2407 DNA Lactobacillus rhamnosus
21 tgcttgcacc ggcaccagac agccctcagt cacaaagcgt gagcaagttc
atcttttgct 60 taagctaaga atagaaaaaa cacgccacca tttgaagtga
cgtgcttttc atgttaacgt 120 caagcgttaa ttagtcaatt gctttaacgt
tgtagaagga cttgcgaccc ttgtattgtg 180 attgagcacc taattgatct
tcgatgcgca tcaactgatt gtacttggca atccggtcag 240 tccggctcat
tgaaccagtc ttgatttcac cggcgttggt tgcaacaacc aagtcagcaa 300
tcgtggtatc ttcggtttca cctgaacgat gtgaaacaac agccgtgtaa ccagcttctt
360 tggccatttc gattgcttcg aaggtttctg tcaatgtacc gatttggttc
aacttgatca 420 ggatggagtt agcaacaccc atgtcaatac ccttcttcag
gtaatcggtg ttggtaacaa 480 acaggtcatc accaacgatt tggactttgt
cgcccatctt ctcggtgaat gtctgccagc 540 cttcccagtc gttttcatcg
attggatctt caacagaaac gatcggatac ttgttaatgt 600 agccgtcaat
catgttggtc cattcttcgg ttgtgtactt cttgtcaggg ttggaccact 660
tggttgtgta cgtcttggta tcagcatcgt acatttctga agcagcaacg tcgaaggcca
720 aagcaatgtc atcacccggc ttgtagccag ccttcttgat cgcttcaaca
agcaattcga 780 aagcttcttc gttatccttc aagttaggtg caaagccgcc
ttcatcacca acagcagtga 840 tgtcaccctt gctcttgagc agtgcctgca
atgcgtggaa ggtttctgaa cccatccgaa 900 cggcttcacg aacactcttg
gcaccaacag gcatgatcat gaattcctgg aagtcaacgg 960 tgttagttga
atgtgcacca ccattaagaa cgttcatcat tggcgttggc aaaacatgag 1020
cattcgggcc gccaagatat tgatacaatg gcagaccaac ttcatcagcc gcagcacggg
1080 cagcagccaa ggaaacaccc aaaatcgcat tggcaccgag cttgccttta
ttaggcgtgc 1140 catcaagatc gatcatggtt tggtcaatca agcgttgttc
ggtgacgtca aggccaatca 1200 cagccttagc aatttcattg tttacgtggt
caacggcctt caaaacaccc ttgccgccaa 1260 aacgatcctt atcgccatca
cgcaattcaa cggcttcatg ttcaccggtt gaagcacctg 1320 atggaactaa
tgcgcggccg aaaccgccat cttcggtata caattcaact tcaacagtag 1380
ggttgccacg tgagtctaaa acttcgcgtg ccaatacatc agtaatgata gacatatatt
1440 cttctccttt ttgccagaag gctgtttaat attgaaacca gattaatctt
ggtagttagc 1500 caaggcgatg aaactgtcag gatccatcga agcgccacca
actaaaccac catcaatatc 1560 aggcttagcc attaattcct tgacgttcgc
tggtttaaca gagccgccgt aaagaatccg 1620 aacagcatct gccgtatctt
tattatacaa cttctcaacg gttgcacgga tgtgagcaac 1680 aacttcttgt
gcttgatctg cagttgctgt tttaccagtg ccgatagccc agattggttc 1740
ataagccaaa accgaaacct taacttggtc ggcacttaag cctgccaaag ctgcttcgat
1800 ttgagaagca acccagtctt cggtttgacc ggcttcacgc tgagccaaac
tttcaccaca 1860 gcagataatc ggcaaaagat tgttcttaaa gatggcctta
gccttcttgt tgatatcttc 1920 gtcggtttcg tggaaataac cgcgacgttc
actgtgaccg ataatgacgt aatcaacgcc 1980 catttctttt aaggctttcg
ggctggtttc gccggtaaaa gcaccttcgt cttcaaagta 2040 gcagttttcc
gccgctgtct tcaaaggagt accttctgca ccggcaacca gtgtcgttag 2100
atcaatggca ggtgcgccaa tgactgtttc aactttgctt gcatcaggta acttaccctt
2160 aacagcatct aagaaggctt gcgtctcctt aggattctta ttcattttcc
agttaccagc 2220 aatgaatggt gtccgcatga cataccttcc tttcattatg
taccgacatg catcatgcat 2280 gtcgataatg actgttagat cagcatcact
aacaattact tgtcagaaat ggctgcaata 2340 cctggtaagg tcttgccttc
aaggtattca aggctagcac cgccaccagt ggagatgtgg 2400 gtaatct 2407 22
1407 DNA Lactobacillus rhamnosus 22 tgttgatggt aagcttaatt
gaaacatcat ctttaggaaa atgaaggagg tcatatcttt 60 tggctaaatt
aatcgtttca gatttagacg ttaaagacaa aaaagtcttg attcgcgttg 120
acttcaacgt gccgatcaaa gacggcgtta tcggtgatga caatcggatc gtggcagcat
180 tgccaaccat ccaatatgtc attgatcacg gcggcaaggc aattctgctg
tctcaccttg 240 gccgggttaa gaccgaagaa gataaggcaa agctgacctt
gaagcctgtt gcagaacgcc 300 ttagtgaatt gctgaagaag ccagttacat
ttgtaccagc tacccgtggt aaagaattgg 360
aagacgcgat cgcaaagtta aatgacggcg acgtactttt gatggaaaat acgcggtttg
420 aagatcttga cggtaaaaaa gaatccggca acgatcctga actcggcaag
tactgggcaa 480 gcttaggcga cttgtttgtc aatgatgcct ttggtaccgc
tcaccgtaag catgcttcaa 540 acgttggtat tgcctccaac atgaaacaaa
ctgctgccgg cttcttgatg gaaaaagaaa 600 tcaagttctt gggtgacgct
gtggacaatc caaagcatcc attcatcgca attttgggtg 660 gtgctaaggt
ttccgataag atcggtgtga ttgaaaacct ggttcctaaa gctgacaaga 720
ttctcatcgg cggcggcatg acttatacct tctatgctgc caagggtatg agcatcggta
780 attcactggt tgaaaaggac aagatcgact tagctaagaa gatcatggac
caagccggtg 840 acaagctgct tttgcctgtt gattctgtgg ttgccccaga
attttctaac gatgcaccgc 900 ataaggttgt tgaaggcgac attccggatg
gctacatggc gttggatatc ggccctaaga 960 cgattcagga attcaaggat
gcacttaagg gtgccaagac agttgtctgg aacggcccaa 1020 tgggtgtctt
tgaaatgagt aactatgctg aaggcacact tgaagttggt cgtgctcttg 1080
gtgatttgaa ggatgcaact acgatcatcg gtggcggcga ctcaacagct gcagctaagc
1140 aacttggcat tgcacctaag attacccaca tctccactgg tggcggtgct
agccttgaat 1200 accttgaagg caagacctta ccaggtattg cagccatttc
tgacaagtaa ttgttagtga 1260 tgctgatcta acagtcatta tcgacatgca
tgatgcatgt cggtacataa tgaaaggaag 1320 gtatgtcatg cggacaccat
tcattgctgg taactggaaa atgaataaga atcctaagga 1380 gacgcaagcc
ttcttagatg ctgttaa 1407 23 1178 DNA Lactobacillus rhamnosus 23
ccacaaactc gattttaact ggggcaaccc gttagaataa accttatttc ctaaaggagg
60 aaattttagc atgactgtta agattggtat taatggtttt ggccgtatcg
gtcgtttggc 120 attccgtcgt atttacgaat tgggtgcaaa gagcaatgac
attcaggttg ttgcgatcaa 180 cgatttgacc agcccaacca tgctggctca
cttgctgaag tatgattcaa cccacggtac 240 tttccctggt gaagttagtg
caaccgataa cggtattgtc gttgacggta aagaataccg 300 tgtctacgca
gaaccgcaag cccagaacat tccttgggtt aagaacgacg gcgttgacta 360
cgttcttgaa tgcacaggct tctatacttc tgctgaaaag tcacaagctc acttggatgc
420 aggcgcaaag cgtgttctga tttctgcccc agctggcaag attaagacta
tcgtttataa 480 cgttaatgat gacaccttga atgcagacga caagatcgtt
tctgcaggtt cttgcacgac 540 caactgcttg gcaccaatgg cttacttcct
gaaccaggaa ttcggcattg aagttggtac 600 catgaccacc gttcatgcct
acacctcaac tcagatgttg cttgacggcc cagttcgtgg 660 cggcaacctg
cgtgctgcac gttcagctgc tgctaacacg attcctcaca gcactggtgc 720
tgctaaggct atcggtttgg ttatcccaga attgaacggc aagttacagg gtcatgcaca
780 gcgtgtttct gttgttgacg gttccttgac tgaattggtt tccatcttga
agaccaagaa 840 cgttacggct gaccaagtca acgaagctat caagaagcac
accgaaaaca accctagctt 900 tggctggaac gaagacgaaa tcgtatcttc
cgatgttatc ggtacgacat acggttcaat 960 cttcgatcct actcagaccg
aagttacaac tgccggtgac tatcaattag ttaagacggt 1020 tgcttggtac
gataacgaat atggctttac ttgccagatg atccgtacct tgctgaaatt 1080
tgctactctc taatccggag taacgctttt ctaaccgcaa catccgaagc ggagggagct
1140 ttactccctc cgcttttttt ggaaagacca ttaaaagg 1178 24 1074 DNA
Lactobacillus rhamnosus 24 tcattcacaa atgttaaact taagttgtta
ctaatttcac ttttgattat aattggaatg 60 taatcggtta caacgtgact
gttgaataat ttcacatttg tgatttcgag gtgacatcaa 120 tgtcaaattt
gcctaaacgg tatgatcgtg caactttagt caagatatcc gatctttact 180
acatgcacgg tctaactcaa caagaaatat ctaacattgc ccatattcac agaaccgaaa
240 taagtcgaat tctgaaggcg gctagggatg aaggcgtggt atctatcgca
atcaatcccg 300 aaaccaccgc cgtcagccaa cttattgatt tttttaaaca
aaaatacaat ttgcgagagg 360 ccgttatagt cccggcttct gaaaatggag
gcaatgagtt aaacgctttg agtgtttacg 420 catcaatgtt tttatcaaga
atcattaaaa gtggtgacgt aattgggtta agttggggtt 480 caacgctttc
aagtgttatc agtcaatttc caacagataa aggccttcgt gatattaaag 540
ttgttccgct ggtgggtggc ccaatgggaa gaataccttc gaactatcat gtgagctatc
600 tgacacaccg gctcgccaat cggctaaacg gaacagcgtt tgtcttggat
tcccctgcct 660 ttgtcagatc aaaagcgctt cgtaaagagc ttctcgccaa
ccccaacacg caagaaatct 720 taggattgtg gaatcgtgtc aatatcgcga
tctttggcat cggaagttca ctaattacag 780 attctcctga ttggcaagcg
ttctatgaga acacaaactt caagtcttat ttcagtgccg 840 atatggtcgg
agatattctt tcacaccctt tcgacaagga tggaaaatta gctcgcgata 900
tcgactccat tcttgttgcc tttccttttt cggcattgcg aaaagtacca cactccgttg
960 gaattgcttt tggggaagaa aaggtaaatg ctatccttgc cgctcttcga
ggtggtctct 1020 taaacacttt aattactacc gaagcaacag caaaggcaat
caaagagttg tcct 1074 25 1025 DNA Lactobacillus rhamnosus 25
gactcggctt gtttcacttg tggtaccttt gaaagtcgaa agtcattatg gaccgacctg
60 gtttgatgcg aaataaggag aactcatgcc tgaattacct gaagttgaaa
cggttcgccg 120 ttccttgtta ccgttagtca aaaataaaaa aatcaccgcg
attagcacaa actgggagaa 180 aatcctaatt aatggtctgg caacctttca
aaaacaggtt gtgggcgctg ctgtcaacac 240 gattgatcgc cgcggtaagt
atttactgat tcggcttaac aacggcatga cgattgtcag 300 tcatttgcgc
atggaaggcc gctattacgt tgtttcggat gccaaaacgc cgctggataa 360
gcatgatcat gtgacgttta cctttcagga tggcagccag ttgcgttacc gcgatctgcg
420 caagtttggc cggatgcggc tgattcacac gggtcaggag caattggtgc
cagcgctggc 480 caagctagga ccggagccga ctgctgctac ttttagcgaa
agtgactttg cccagaaact 540 aaaacggcat cataaagcca ttaaatcggt
tttgctggat caaactgttg tggccggaat 600 tggtaatatt tacgcggatg
aggtcttatg gctcagcaag ctcaatccgc tgcagccagc 660 taatacctta
accaaggcgg aggttcacac gttacatgat gcgattatca aggaattgga 720
cgacgccatt gccgctggcg gtaccagtgc ccatacttac gttgatgcaa aaggcaaccg
780 cggttcgttt caggacgctt tgcatgtcta tgatcgtgaa gggacgcctt
gtgatcgttg 840 cggcaccacg attgtcaaaa ttaaagtcgg tcaacgcggc
acgcattatt gcccgcattg 900 ccagccgtta cgtcgaaggg ggcaactggc
atgacctttt tgttagggct gacgggcggc 960 attgcgtcag gcaagtcaac
ggtaagccgg acatttaaag cagctgggtt tccagtggtg 1020 gatgc 1025 26 7755
DNA Lactobacillus rhamnosus 26 gattcagcag caagcacgag tgatgcaacc
gattcgaaat cgctagcgac agattcagca 60 gcagtcaaac cgcaaacggt
gacccaagaa gaccgctcac ttgcatccgc agctgttcag 120 acaacttcgg
ccgcagcatc atcggcggct tcatctgcat cgtcacaagc atccttagca 180
gcacaatcgg caacaacaac tcaggtcaac acgcaagctc cggccaatgc aacagctgct
240 gaaaatacgc agaccattgg cgactatacc tacagtcttg atacggcaaa
cggtacagca 300 acggttaccg gccgcgccaa cgccaatgtc accgatatta
acattggcgc gtctgttacc 360 tataatggcc aaacttttaa agtgacggcg
attaacaatg gcgcttttgc aacgcttaat 420 aatttgggta atgttaacgt
ggctgatact gtcacgtcca ttggcgaaaa tgcttttgca 480 tacagtcagt
ttacgggcaa cattacaatt gaaaatgcag aaagtctcgg caaagccgca 540
tttgccggaa ttaaggcagg gtcagtcacg ctgaagaaga cggctaacat ttcagagcgc
600 gccttttatt ttgctaacgt gaaagatata acgattgcag acgctcagac
tatagaggca 660 caggcattct ttagtcttac agcttcatct ttaaaaattg
atggtcaagc cgatattggc 720 gagtctgctt ttgaatctgc caatattgct
ggggatgtca ccgttaatcg tgcaaagacg 780 atcggaaaaa atgcattcgc
cactttaaag gcgcattcgt tgacgttgga caatctaacg 840 acgcttgatg
aaggtgcctt tggtggtgct gtattcactg gtaatcttac aattaatggc 900
gcaaaaacta ttggcaagtc cgcattcgct tatgacaaag taaccggaga tgtcacggtg
960 agcggctcac ctgccattgg tgaaattgcc ttttatggga ttcaggcggc
gacaatcacg 1020 attgatggcg cccaaaccac tttcgataag accgcgtttg
gatttgccac ggcggatcac 1080 gtaacagtca atgtagccac ccttgatcat
gaggcatttt atcatcttta tactgaccaa 1140 ctaacccttg gtcctgatgt
tcgagatatt acagatggcg cttttcagtt tattcaaaat 1200 accaaaaaaa
cagagagtaa cgctgaaaat gatactacgg acgttcaaat agcagtgttg 1260
aacctgccag ctaatgtcaa aacaatcagc ggctcggctt tttatggttc gaaagttaaa
1320 acgatcgcag ttgcagaaaa cagtcaattg acaactctcg gatttcaggc
gtttgcattt 1380 tccactgcta cggcgattaa cttacccgat tcgctggagc
agattggtga tcaggcgttt 1440 tatggcggga agcttgtgaa agtagcgttt
ggacccaaat tgcaatcaat tggtaatctg 1500 gcctttactg aatttggccc
gttggaaaat gttgacttta ctcgggccac ggcgctcgaa 1560 acaattggtg
atagtgcgtt tgcctacaat acgattaaca atgcgatcac gttaccacct 1620
aagctattaa cgatcggaaa tgcggccttt gtcgggaata aaattccaaa actggttctg
1680 gatgatcggt taaagacaat cggtgacact gcttttggct ataaccagat
ccaggacgca 1740 ctcgatgttc ctgacagcgt gaccgacatc ggtaagtatg
catttgttta caactctatc 1800 agtaatttaa cgttaggaaa tggactgaaa
acgattggcc aggaagcatt tgaagccaat 1860 gttattttaa atgcgcaaac
gataccaagc agtgttacga gtattggcgc caaggcattt 1920 aaggctaatt
tgattcctaa agttgttgtt gagggcacgc caaccattgg caatgatgct 1980
ttttcgaata accggatcac tgtgctgaaa gcagcgacag ccaagccgac aaccccggat
2040 gctttggagc agaatgccga tgcctataca gactcggcgc acgtaagtct
aagtgatttc 2100 tttgatgtgg ccatttccgg agtgacccac caaaacatcg
ttgtttcaaa catcaaagga 2160 gttaatggcg ctacggtaac ttttgatacg
gcaagtaagt cgtttaaaat gccagctaag 2220 acgcagggat ttaatttcga
ttggtctttg aaagggcaag acggtgttac ctacacaggc 2280 cactacattg
ttcatctcga tgatccagtg attcgtgccc atgacatcag cctatttact 2340
ggccaggtat ggaagccgga actgaatttt gaaaacgcga ttaaaagcga cggtactgag
2400 gttccattga gtgagttgac ttggtcagtg acggatgaaa aaggcaatgt
ggtagcatct 2460 aaggataaaa atggggttgt caccggtcat gtggataata
gccagccaac gacttatgtg 2520 gtcacctata cctatggtgc agaaagcggt
tctgctaaaa tcaattacaa gcaacggtta 2580 gcggcttcat atgctttgac
tggtactcag accgtcaccg caacaggaag tccgattacc 2640 gtcgatgtct
cccaatttgc actgagtttg ggtgacggtt ttgatgcggg gaaattagaa 2700
ttaagtgatc ttaatttctt tgatgccgat ggtaagccgg tagccgcaga tgctctgatt
2760 aaaactggcg tctacagtgt ggaattatca gaagctgcgt gggcacggat
cgccaaatta 2820 acaaatgatg aaggccagtc tgctgcgggt tatgatttta
ccggaacaag tacggcacaa 2880 ttaatcatcg gtctaacggc tacaggtcat
ttgagcgata gcggttttgt ttatgacggc 2940 aaaacaacag ccagtcagtc
taaagatttg gcggtcacgg tgacattgag tgatggcact 3000 cagaaagaaa
tgaacctgac ctcagaagac ttctcattag ttgaaaaaga ttcagctaac 3060
gttggcacgt accattattt gttaaacagc gttggtttcg ctcgtttaca agcgttacta
3120 ggtgataccg tgacgattga tcaaactgcc atcaatcaaa attccggaaa
aatcaccatt 3180 acgccagcac cggctacagt taatagtaat agtacggatt
ttgaatatga tggcaaaacc 3240 aaggccagtg aggctaaagg tattcaagct
acagtcaaac taggcgaaac tggaaaaacg 3300 attgacctga cgtcagctga
cattgttgtt gagaatgatg gtgtagatgc aggcaagtac 3360 agctatgagc
tgagtgacgc tggtaaagct aaattgcaag ccgcaactgg aaataactat 3420
cagttgactg cagacgatct ggctaaagtc acgggagcta tcacgattac gccagctacc
3480 acctcagttg atagcaatga cgtttcattt gaatacgatg gtaagaccaa
ggccagtgaa 3540 gctgcaggta ttcaagccac aatcaagctc gacactggta
aagttgtaga cttgaccgcg 3600 gccgatatta tcgttaccaa tgatgacgta
aacgctggtc agtacagcta tcaactaagt 3660 gatgctggta aggctaagtt
acaagccgca actggaaata actatcagtt gactgcagac 3720 gatttggcca
aggttgctgg aactatcacg atcacgccag ccgttaccac agttgatagt 3780
agtgacgtat cattcgaata tgacggcaag accaaggcca gtgaagccaa gggtattcaa
3840 gctacaatca agctggacac tggtaaagtt gtagacttga ccgcggccga
tattatcgtt 3900 accaacgatg acgtaaacgc tggtcagtac agctatcaac
taagtgatgc tggtaaggct 3960 aagttacaag ccgcaaccgg aaataactac
caactcacgg cagacgattt agctaaagtc 4020 atgggaacca tcacgatcac
gccagccgct gtcacagcag acagcaatga cctttcgttc 4080 gaatatgatg
gtaaaacgaa agccagtgaa gccaaaggta ttcaagccat ggtaaaacta 4140
ggcgagactg aaaaaacggt tgacctgacg tcagctgaca ttgttgttgc caacgatgac
4200 gtaaacgccg gtcagtacag ctatcagcta agtgatgctg gtaaggctaa
gctgcaagct 4260 gcaactggaa ataactatca gttgactgca gacggtttgg
ctaaggttgc tggaacaatc 4320 acaatcacgc cagctaccac tacagcggat
agcaatgacg tttcatttga atacgatggt 4380 aagaccaagg ccagtgaagc
caagggtatt caagccacaa tcaaattagg cgaaattgaa 4440 aaaacggttg
acctatcgtc agctgacatt atcgttgcca atgacggagt aatcgttggc 4500
aaatacactt acagtctgag cgacagcggc aaatctaaat tacaggcggc aacaggaagt
4560 aattatcagt taacgacaga agttttggat aaggtttcag gaagcattac
aatcacccct 4620 gctggagcaa tcgcaacagg caaggatgct cactttgagt
acgatggaaa aacgaaagcc 4680 agtgaagcta aaggcattca agcgattttg
accattgacg ggactgaaaa gactgttgac 4740 ctgaccgcgg ctgacattgt
tgttgcggag gatggcgtag atgcaggcaa gtacagttat 4800 cgactgagcg
atgctggtaa atctaagtta cagagggaag cagggagcga ccatcagcta 4860
accgcagacg acttggctga agtcacggga actatcacga tcacgccagc cattgccaca
4920 gcagatagta atgacgtttc atttgaatat aatggcaaga ccaaggccag
tgaagctgaa 4980 ggtattcaag ccacggttat gctgggtgag tctggacaag
ttgttgctct aacatcggct 5040 gatgttgttg ttgtgaatga tggtgtagat
gcaggcaagt acagctatca gctgagtgat 5100 gctggtaaag ctaagctaca
agccgcaacc ggaaataact accagctcac ggcagacgat 5160 ttagataaag
tcacgggaac catcacgatc acgccagcta ccaccacagt tgatagcaat 5220
gacgtttcat tcgaatatga cggcaagacc aaggccggtg aagctaaggg tattcaagtt
5280 acagtcaaac taggcgaaac tgaaaaaacg gttgacctga cgtcagctga
cattgttgtt 5340 gccaacgatg acgtaaacgc tggtcagtac agctatcagc
taagtgatgc tggtaaggct 5400 aagttacaag ccgcaactgg aaataactac
cagctaactg cagacgatct ggctaaagtc 5460 acgggaacca tcacgatcac
gccagccgtt accacagcag atagcaatga cgtttcattc 5520 gaatatgacg
gcaagaccaa ggccagtgaa gctaagggta ttcaagttat agtcaaacta 5580
ggcgaaactg aaaaaacggt tgacctgacg tcagctgaca ttgttgtagc caacgatgat
5640 gtaaacgctg gtcattacag ctatcagcta agtgatgctg gtaaggctaa
gttgcaagcc 5700 gcaaccggaa ataactatca actaactgca gacgatttgg
ccaagatcac tggaaccatc 5760 acgattaccc cagccgttgc cacagcagat
agcaataacg tttcatttga atataacggc 5820 aagaccaagg ccagtgaagc
tcggggcatt caagccacag tcaaactagg cgaaaatgga 5880 aaaaccgttg
cgctaaccgc ggctgacatt gttgtcgtca atgacggggt caatgctggc 5940
cagtacgact ataagttaag tgctgctggt atgacaaagc tacgccaggc aacaggaact
6000 aattatcaat tcaaaaagga ggacttaacc aaacttggcg gcacggtcac
gatcacgcca 6060 gctacggcat tagctgatct gaatgatgtt tcatttagtt
atgatggaca aactaaggcg 6120 agtcaggcac acgacttaac tgccaacatc
aaacttggta ctaaggttgt ttcggtacat 6180 ctgaacgcca cagacattct
tgtaaccgat gatggtgtgg gcgtaggtca gtaccaatac 6240 aaattggatg
ctaacgggat cgctaaatta cgtcaggcat caggtgataa ttaccaattt 6300
gatgccaaag tcttggcggg attgactggt acgattacaa tcaaaccggt taccggtgcg
6360 gtgacagtta atgacacatc ttttgtttat gatggtcata ctaaagcaag
tgctgccgcg 6420 ggattacagg caagtcttta cctgccgcaa gccgaggcca
aagcaacgat acaactgaca 6480 cgggaagata tccttgtgac aaatgacggc
acagcagcag gtacgtatcg ttatcggttg 6540 agccaaaccg gtatcgccaa
gttacagaag gctgttggca agaactacga gttagatcaa 6600 gatgaattgg
cgggattgac cggcaccatt acgattacgc cgctgacggt gaatgccaca 6660
gttaatcatg gtcagttcca atacaacggt gtcactcgtg caagtcaagc aggcggatta
6720 gcgataactg tccaactgcc agaaaagtct caaaagatcg ccttgacgaa
cacagatatt 6780 gcagttgaaa acgacagcgt caatgtcggg acgtacacgt
atcatttgac agcaagcggg 6840 ctggctaaat tggccgtagc gattggtcct
aattatcagg ttactgatca aacgttcagc 6900 ggcaccatca ccattacacc
agcgcctata tctgcaacgc tcagtggtct tcaaaagaaa 6960 acttacgatg
gccagccagg cgctttgaat gacgactatt atcggttagt tttgggtgac 7020
ggaactgaaa ttcagcttca agccggcgat ctgatctttg tagacggtca agctcctgtt
7080 aatccgggaa gctatgcggt agctctcagc acatctggcc tgcaacgaat
caaggcgtcg 7140 ttgccaaata atctgttgaa aaatgttaac acgcagcagg
ctatttttga gattgttgcc 7200 ttgccaagtc ctgatcccgg gaccggaaca
acgccggata cgccggatca tcacttgccg 7260 aatacaggta ctggcaccca
acagtccgag atttccacgc ataatggaac gaaacatcga 7320 cttccacaaa
caggcgatac ccagtcacaa acactaagcc tcatgggatt gttgctggca 7380
acgatgagcg gcttattcgg attagctggc cggaaacgga aagcgcaccg ttaaacgttt
7440 tgttagaaat gtagtgatta aaaagatcct atcacgatga gttctgctca
tgtggtggga 7500 tcttttgtta tggcaaaaac taggcgcaaa agcttacagt
ggtaccgctg cgccttgggt 7560 taaccctgat ttgattttgg caaaagccgg
gtctgttagg aaagcactga tgagttgccg 7620 catattgatg ttactatcct
gaatctccgg catgtttggc gtaatgcttg tgcctgtcac 7680 agtaagattg
tactggctgg cgagactggt gatagcttgc ttggactgat acatgttgta 7740
gagtttaacg gtttc 7755 27 4645 DNA Lactobacillus rhamnosus 27
tagggggtca aaaatgggaa ccaaaatagc cgttaaaatc aacaagtggc aagtgtagct
60 caagccagca gcagtgcgag cgatggtcaa gccaaagcaa gcaggggcta
atgtggcaac 120 gaccactaat agtaaaattg gcggcagtca aagtagtgcc
aaggcagcca gtgcgtttaa 180 aagtagtgct agcgttgaaa gtagtggcca
gatcaaaagc actagtttag ccagtgctgg 240 cagtaacggc gaaaaagcga
ccagcgctct aagcagtagt gcagttgatg ccagcgatgg 300 tcgtgcgagt
cagggtgttg gcggcacgtc aagtggtagt tcagatacta cgagtcaggc 360
aaatgaaggc aacagcgccg ccagtgtaac aagtgcaagc gccaatagtg cctctgcaac
420 aaatacatct gaaggtcaaa ctccagttaa tgaagcggta tcaaacgatg
cttctagcgc 480 cgatgtcagc accgcgtcag agtttgatgc agccatggcc
gattcaacgg taagtgtcat 540 caacgtacag tccgactttg ttatggatgt
tagtggtgat cgccaatcgt atgcttatcg 600 gccaaaccta attattaatg
gcaataacca cacaattgat tttcaaaaga agtatttcga 660 agctgatcct
acaagtagtc agaatgaatc atttaccatc aacgatttaa atatgtacgg 720
ttacagttgg tggggcccgg ttactatcaa gggcagtaag ccgaaagacg gcatcgatca
780 ttcggtagtg ttcaataatg tcacatacac aggtgcacaa ctgatgtatg
gcatttatac 840 aaaagccttt attaagggga atacaaagat tcagtcagtg
ggcagttatg tttccccgct 900 ggacggatca acccagacaa cccaaggctt
aggcaaccag caaaactttc aaattagtta 960 tttagaggtt ttgcctggcg
ctacttacac ggggacaact actggtggga ctaacgttga 1020 agtatatgat
ggcggttcat ttattgttga caagggagca accgttaact tacaacgcac 1080
ggatgcaagc aaatcgaatg aacgtggtac gaatgcattg attgatacac agggaggtaa
1140 cgttgagttt aaggatggat caaccgttat ccttaataaa aatgcacttg
tgaaagatgg 1200 ctttgcacca atctatattg aagacggtgg taatctaacc
gttgataaga atgcaacggt 1260 atccattacc ggtgcaactg gaaacatccc
ggtaagaatt gacggtaccg gaactgtcaa 1320 cctcaacgaa ggatcgcaca
tgacgatcac tcaaaatggt gcgcctaaac ttggctatgg 1380 ctttatcaat
attaaaggta ccggaggctt cttcgttgca agtggcagca ctttggatct 1440
taatgtaacg ggtacaggga caaagagtgt caatgcaatt aatgtagcaa atgacggtca
1500 actgagtttt gcacaggatg ctacggccaa cttaaccatt gacggtggca
cgggcgaagc 1560 gcatttgttg aaagtcggtg acgatgccaa cattaacatc
tatatgccga aatccgttct 1620 ttttaagatt accgataacg atgacgcaga
cagcagttta tttaaagtca gtggtaccgg 1680 cacgctaaca ggtcaatatg
tgaaaatcat tccggatgac gggaatgcct atgggccata 1740 taagtccgct
atctatacac taaaagggaa tggctcttct tcagataccg ctacggttga 1800
aggtgagaca gcagaagatg aacaatccgg gaaagcactt gccgacacgt ttgcgactga
1860 caaaagcttg gagttcgtca gtgccagtga taattttatt aaggtaaatc
cagttactga 1920 tgaaaccaca acgcttacag gtaaaaccac tgccggagcc
tatgtaacga tttcaggttt 1980 aaaggggatt ccagaaggca gcttaactgc
gaattcctat gatagtacaa aatatttggt 2040 acaggcggac aaggacggta
attggagtta cgaactgccg actggggttt cgttacctgc 2100 caatgcttca
tttgaagtta tttcgagtgc tggattcatt gtgaaaacag cgacggtagt 2160
gatcaacgat gccgaaacgc caaagcaggc atccagtgca gctggcagct taatcaacgc
2220 caatagtgct gctgatgtca cagcttcaca ggcaaaggct acaagtgctg
ctgctagtga 2280 tgcggcgagt tatgcaagtg aagcgcaatc gattgctggc
agtcatgctg ataatatgga 2340 aatcaagtct ctcgccagtg atgctgagaa
gcaatcgcaa attgctttgg cagctagcaa 2400 gtctgctgcg gctagttcca
gtgcggcagc gtccgcagca atcgtggcaa gtagcgcggc 2460 tagtgaagcg
tcatctgcag ctgctgccgt aagtaacgct gatgcatcag caaactctgc 2520
agccgctgct tatgattcct acgcttctga ggccagtgcc gcttctgctg ctaatgatag
2580 ttcgggatat gccactgcat catttgcagc aagttccgct gcggctgcca
tgagcgcagc 2640
gttatcgaca gcgcaagttg ctgccaaggt tgcagtgagt gatgcagcag cagcgggtag
2700 tgcagctgct gttgctagtg cagctcaaag cgactccaag aataaacaag
cgactgcagc 2760 tacagcaaga agtcaagcac ttgatgattt gaataagatc
aagtctctaa ctgattacgc 2820 aagtggcgca agctccagtg ccagcgaagc
gggtcaagca tcgactgcaa catctgcgta 2880 tgctagtgct gcaagttcga
gtgccagtga agccggttca tatgctcatc aggcaggctc 2940 cagcgccagt
gacgctgtcg gtcagtccgg cagtgcagcc caacatgcca gcaccgctgc 3000
gagtgcggca tccagctatc cgaaggatag tgggattcag tcactagcca gtcaggctgc
3060 aagcgaggca gcaaaggcaa gcagtaacgc gagtgccgca accagcgccg
cggccgttgg 3120 tttcagtgct gccagtgatg caagtgaaca ggcgaagacg
gctgcaagtg ccgatgtggt 3180 ggcaagcagt gcggccagca cggctaacag
taatgcgagt gccgcagcca gtgcgaccaa 3240 ggctggtgat agcaaagccg
cagcaggatt ctcgagtgca gcgagtgctg cagcaagcag 3300 tgccaagggt
gcagaagcag ttgccagcga agcggcgagt gccgcggcat ccgatgactc 3360
ggtagcttct agtgccgcca gtgcggctgc aggctttgac aaagctgcca gcgctgcgga
3420 aggcgcagct tcaagtgccg cgagcgcggc tgctagttca gcggcagctc
aaggcacacg 3480 aggtggcgca agctccagtg ccagcgaagc gggtcaagca
tcaaccgcaa catctgtgta 3540 tgctagtgct gcaagttcga gtgccagtga
agccggttca tatgctcatc aggcaggctc 3600 cagtgccagt gaagcgactg
gccatgcaag tagtgctaca agtcaagcaa gtgccgcatc 3660 cagtgctgcg
tccaggtacc caagtgatag tgggatccag tcagatgtaa gtattgcgtc 3720
cagtgcagca agtactgcat ccagtgccgc tagtgccgca caaagtgagg cttcgacggc
3780 atcgtcggct gcaagtcatg ctagtgaaca agcaagtatt gcttccagtg
aggatgttgt 3840 atcaagcagt gctgcgagtg tcgcgtccag cgcggccagt
gccgcatcca gtgctgcaaa 3900 ggctggtaac agtagtgctg cgggtatata
ctctcatgca gcaagtgcag ctgcaagcag 3960 tgctaagagc gctgaaagtc
aagcaagcag tgccgccagt gctgctgctt ctgatgattc 4020 ggtagcttct
agcgctgcca gtgccgcttt gtctgacgat gctaaggcaa gtagcgccgc 4080
cgatgtagca tccagcgcta caactgctgc cattagttcc gccacatcct tggctgatca
4140 gagtgccaca gggtcaaccg ctggctccca tattttgcca agtactggtg
gagagacgac 4200 aggtagtata ccatcgggtc agacgccaac acagacgaag
ccaacacaga cgaagccaac 4260 acaaacgaag ccaacacaag ccggtcaaac
aacccagaca ggttcattac cgcaaacgga 4320 tcatgcaggg aggcatatgc
taccgcagac cggtgatgat gctgaaagcg gtacttctgt 4380 tttgggtttg
ctgattgtta gtctgatggg attgtttggt cttgcgggaa ccagacatca 4440
gaaggacaat aagccatcaa agtaatattg gatcactaat gtcgcccata cactggtgat
4500 aaaccaaaat ctgatggaaa tagctagtgg tgtaagagat gattattctc
ttgcaccact 4560 tttttgttaa gcacgttttt ttatggattc tgtgtgccaa
atgtttgaaa ttgatgtggt 4620 taaatttggt tttgcgggta atcta 4645 28 7639
DNA Lactobacillus rhamnosus 28 ctgcttaatg gtcacccatt ccttgtcaag
cagaaaacta atgatttcgt agtgcttgag 60 caggctactt tccaatagtt
cttccataaa cttacctccc caagtaggtt gttactatca 120 aaacttgcct
aacgttaggc aagctttgaa ctagaaccaa tcattgattt atttatacta 180
atgacatatt gcataagcat tgcttggttc accataaatt ataaagtgat aatgcttgtt
240 gtttcaatta ttaagaactc gcctttcaaa atgtaataat ttatatcaaa
tattttgaga 300 atgggtaggg ttaacttaat tgtttgctgt tttgggttca
ataaaaggga ggcatgttga 360 agtgaaaaag gggagactga tattactatt
agccacggga ctgatttcaa ttggtctttg 420 ggattcaagc ggtgtcgtat
tggcagcgaa taagccccag gctggtgata tccatttggg 480 tggtgccgat
ggttcgagct ataggaagct tataaatagc atcacattcc aatatagcaa 540
cgacgccgtg gtatatgacg aaggtacgga taccttcaaa attccaattc ggttcggctc
600 gcttgaatca gatggcttgg atcggtattt ggagtttggg tattcgttta
acgatgcctt 660 agaaggaaaa atcaagcggg ttgtgatttc acctgatggg
ctggtcccag cggttattac 720 aagtcttaac aagaacagag aatttgcacg
gcgctgggat ggtagtgatg gtaaaagcgt 780 tagtcatcaa ctaggtggac
gagcagatgc cgtcatctac atgcaggcgc ataagattat 840 gcccgaggat
tggattgctg ttcggatgga aaccaatcgg attgaaggga aacaccctat 900
tcatccagca tttcgatcca ctcgcattct tgagtacaac gattttggtc ctgcactcaa
960 cgccaaactt ttagaagcca tgaagaaaaa ggcgattgat gacacggcca
aggatcctaa 1020 accggttcaa gaagaagtta aagaaaaagt cgacccaatc
acggttgacg aggactttga 1080 caagctcatt caggaaatcg ttttaaacgc
gcataaggaa caggctaaac gagatattga 1140 tgccgaagcc gccaaagtca
gcgctgaaat tgagcaggat ccgactttaa cggcaacgga 1200 aaaggcaaag
caaaaagatg gcgttgcagc cgaagcaacc aaggccaagg cggcaatcga 1260
ccaagcgcaa accgaaacag gggttcagca ggcgcgagat gccggcattg cagcaatcga
1320 tgcccaacat cagcctggaa ccggactcaa cgtgcgccga gaagaagcta
agcaggcgat 1380 tgatgccgaa gcggctaaag tgactgctga gattgagcag
gattcaacct tagctactag 1440 cgaaaaagcg gcccaaaagc aaggagttgc
tgatgaagcc gcgaaagcca agacggcgat 1500 tgatcaggcc caaacgattg
aagccatcga taaagctaaa gatgatggga ttaaagcaat 1560 tgatgcccaa
cacaagcaag gcgctgactt cgatacgcgt aaagctcaag ctaaagacgc 1620
aattgatgcc gaagcggcca aagtcaagga tgctattgat caagacccga ctctgacggc
1680 caaagacaag acggcccaga agcaaggcgt tggtgatgaa gcgaccaaag
ctaagactgc 1740 cattgatcaa gcgaagacca ttgatggggt gatccaagcg
aaagatgatg gcatcaaggc 1800 aattgatgcc caacatcagg caggtaccga
tttggcgacc cgcaaagata gtgctaaaca 1860 agcgatcgat gccgaagcgg
ccaaaataac cgatgccatc aaccaagatg acacgctaac 1920 cagtaccgaa
aaggacgccc agaagcaggc agtagctgac gaagcggcta aagccaaagc 1980
agcgattgac caggctcaaa acgcagatgc cattcttcag gcccaagctg atgggattaa
2040 agccattgat gcgaaacatc aaattggtgc agatttagat acccagaaaa
ccaaggctaa 2100 gcaggcaatt gacaaggaag ccgccaaagt tttaacggca
attgagcaag atccgacttt 2160 gaccagtgct gaaaaaaagg cgcaaaagca
aggcgttgcc gatgaaactg ctaaagccaa 2220 gaccgcaatt gattcggcgc
ggaatgctga tgaaatcgcc aaagcgcaag cagatgggat 2280 taaagccatc
gatgcgcaac atcggctggg aatggattta gctaagcgta aaactgatgc 2340
acaagcggcc attgacgctg aagctgccaa agttggcgaa gcgattgatc aagatcctac
2400 tttaacgagc caagaaaagg cggcccaaaa gcagaccttt gctgctgaag
caaccaaggc 2460 taaagatacc atcgccaaag cgcaggatgc cgatggtgtt
attcaggctg aaaaagcagg 2520 cattcaagcc attgacgatg ggcatcaatc
aggtgcactt ttagatacgc gcaaagttga 2580 tgctaaaaaa gccattgatg
ccgaagctgc taaaattaat gacgccattg accaagatgt 2640 cacgttaacc
agcgctgaga aagccactca gaagcaaaaa gttacggatg aagcagtcaa 2700
agccaagaca gcgattgacg cagctaaaaa tgcggacacc gttgatcagg ctaaagcatc
2760 aggcatccaa gccattgatg ccgtccatca aagcggcacg cttttagaca
ctcgcaaaca 2820 agatgccaaa aaggcgattg atgcggaagc agttaaagtc
attgcagcta ttggccaaga 2880 tgtgaccttg acgcaagcgg aaaaactaac
gcaacagcaa gcagtcgctg atgcagcaac 2940 gcaagctaag gctgctattg
atgctgccaa gaatgccgat gcggtggacc aagccaaagc 3000 ggatggtatc
aaggcgattg atgcccaaca ccaagccggg ttggcgttga acgaacgcaa 3060
agaagcagcc aaaaagctaa ttgcggaaac cgctgataag gtgcaggctg cgattggtca
3120 ggatgtgacg ctgactgcga cccagaaagc agtgcaaaga caggcgatta
ccgtggaagt 3180 cactaaagcc aatcaagcca ttgatgcggc tggcaatgct
gacgcggtcg atcaagctaa 3240 aaatgcggga gttaaagcaa tttatgacca
gcatcaatcc ggtcaggcac tcgcagatcg 3300 gaagcgtgat gccaaacagg
cgattgatgc cgaggcggca aaagaaacag ctgccattga 3360 tcaggatgca
actttaaccg cgaatgaaaa ggcaagccaa aaacaggcgg ttgccgatga 3420
agcgactaaa gccaaagaag cgattgatgc ggctaagcag gctgatgcag tcgaccaggc
3480 caagaatgac gggatcagag cgattgacgc ccaacatcac gctggccaag
cagttgccga 3540 tcgtaaagcc gctgctaagc aagccattga tgccgaagcg
gctaaagtaa cgggcaacat 3600 tgatcaagat gaaaccctca cagcgacaga
aaaagcggcg caaaaacagg cagttgcaac 3660 cgaagccgat aacgcgaagc
aagcgatcga caaagggcaa aatgctgacg ccgtcgacaa 3720 agctaaaaca
ggcggcatca aagcgattga cgctcagcac cagtctgggc aggcaattaa 3780
agcgcgccaa aatgacgcca agcaggctat tgatgctgaa gccgcaaaag taaccaaagc
3840 gattgaccaa gatccaactt taaccgccgc tgaaaaaaag gcacagaagc
aagcagtcac 3900 agatgcggaa actaaagcta aagctgctat tgatgctacg
ttagtggccg atgcgattga 3960 ccaagctctg gctgacggga ttaaaaccat
cgatgcccaa taccaaactg gtatagcatt 4020 ggataagcaa aaggcggcgg
ccaaacaaac aattgatgcc gaagcagcca aggttagtga 4080 agcaattgat
caggatgtca ctttgacagc cgaccaaaag gctacacaaa agcaggcagt 4140
ggcagatgaa gcaacgaaag caaaagcggc cattgaccaa gcctctgacg ccgatgcggt
4200 gattcaagca acaattgatg gtattgaagc tattgacgcg caacaccagt
ccgcaacggc 4260 acttgacaag caaaagcagc aagcaaaaca ggccattgat
gctgaagcgg ccaaagtaag 4320 taaggcgatc gatcaagatg tgacgttaac
ggcaacgcaa aaagctgacc agaagcaggc 4380 tgtgatcgct gaagcagaca
aagccaaaaa gcttatcgat gcagctggca atgctgatgg 4440 tatcaagcaa
gctgaaagtg atgggatcaa agcaatcgac gctcagcatc aatccagtca 4500
ggcactcgca gatcggaagc gtgatgctaa aactgccatt gatgccgaag cggcaaaaga
4560 aacagctgct attgatcacg atgccacctt aaccgcgaat gaaaaggcaa
gccagaaaca 4620 ggcggttacg gatgaagcaa ctaaagccaa aaaagcgatt
gatgcggcta agcaggctga 4680 tgcagtcgac caggccaaga ctgacgggat
caaagcgatt gacgcccaac atcactccgg 4740 gcaagctctt gacgatcgta
aagccgatgc caagcaggtc attgatgctg aagcagccaa 4800 ggtgacggca
gcgattgatc aggataacac gttgaccaaa gcccaaaaag ctgcccagaa 4860
acaaggggtt gcgacagaag ccgacaaagc taagcaagcc attgatgctg ccggggatgc
4920 cgatgctgta gatcaagcaa agacagccgg gattcaagcc atcgatgctc
agcacaaagc 4980 cggtaaaacc attgatagcc gtcatgatga cgctaagcaa
gcgattgatg aagaagcggc 5040 taaggtgatt aaagcgattg accaggatcc
aactctgacc gctgcccaaa aagaagcaca 5100 aaagcaagcg gtagcaactg
aagccgataa agctaaaaaa gcaattgacg ctgcaggcga 5160 tgcggatgct
gtagatcagg caaaaacagc cggcatcaag gctatcgatg agcaacacaa 5220
gtcaggacaa acagttgatg cacgaaaaga agatgccaaa aaggccattg atgctgaagc
5280 cggtaaagtt actgatgcaa ttgatcacga cgccactttg acggctgctc
aaaaagaagc 5340 gcagaagcag gcagttgctg atgaggctga taaagctaaa
aaagcgattg atgcagctgg 5400 aaatgcggat gctattgatc aggcaaaatc
tgctggtatc aaggcaattg acgaacaaca 5460 caagtcagga caaagcatcg
atactcgtaa agatgacgct aagaaagcta ttgatggaga 5520 agttgctaag
ataactgatg cgatcgatca tgacccaaca ctgaccgatg ctgaaaaggc 5580
aacacaaaag caggccgtca tcgctgaagc tgacaaggcc aagaaggcaa ttgatgcagc
5640 cggtgatgct gatgccgttg accaggcaca aaaggctggc atcaaggcga
tcgaccagca 5700 acacaaatcc gggcaagcac tagcaatccg gaaagatgct
gctaagaaag ccattgatga 5760 agaagctgct aaagtaagcg aagccattga
tcatgatgta acgttgacgg acagcgaaaa 5820 gggcactcag aagcaagctg
ttgctgacga ggccaagaaa gctaagcagg cgattgatac 5880 tgccgacaat
gctgatggcg ttgatcaagc agtgaccaaa ggcattcaga tcattgacgc 5940
gcagcaccag tccggccaag cgctcaccga tcgtaaggct gctgcgaaaa aagccattga
6000 tgccgaagct gcaaaggtag gccaagctat tgagcaggat ccaacactga
cggcaacaga 6060 aaagaagcgt caaaaacaag ccgttgcaga cgaagcaaca
aaggccaaag cggcgattga 6120 tactgctgct aatgcttcag cggttgacca
agcaaaaaat gccggtatta aggccattga 6180 tgctcaacac gtctctggta
aagcttttga cttaagcaag gacgaagcca agaaagcgat 6240 tgatgctgaa
gctaccaaag ttcaaggtga aattgatcag gacccgactc tgaccgctac 6300
tgccaagaaa cagcaaaaag aagcagtgcc gacagaagcc ggtaaagcaa aacaggcatt
6360 tgatcaggct aaaaatatcg aggaggtacg accgccaaag acgaaggcat
caaagcgatt 6420 gatgcgcaac atcagtcagg acaagcagtt gcacacgtaa
agacgatgca aagaaagcaa 6480 tcgacgacga agctgctaaa gtgaccgaag
caattgatca tgattcgtca ttgactgatg 6540 ctgaaaagaa ggctcagaaa
caaggcgttg taacagaagc tgacaaagcg aagaaagcga 6600 ttgatgcagc
tggcagtgcc gatgcagtcg atcaggccaa agatgcaggc atcaaggcca 6660
tcgacgcgca acatcagtca ggacaagcag ttgcaacacg taaagacgat gcaaagaaag
6720 cgattgacga cgaagctgct aaagtcatca aggcaattga tcaagatccc
aacattgact 6780 gacgcagaaa aaacggcgca aaagcaagca gttgcaacag
aagctgacaa agcgaaaaaa 6840 gccattgatg cggcaaaagg tgccgatgca
gtagacaaag ccaaagcagc tggtatcaag 6900 gcaattgatg cccagcaccg
ctccggtcaa accatcgcgg cgcaaaaaga tgcggccaaa 6960 aaggcaattg
acgacgaagc tgctaaagtc atcaaggcaa ttgatcaaga tccaacattg 7020
actgatgcag aaaaggcagc gcaaaagcaa gcagttgccg cagaagctga taaagcaaag
7080 aaagcgattg acgcagctgg taacgctgat gcggtgaacc aagccaaagt
agctggcatt 7140 aaggcaatta acgaccaaca tcgtgccggc aagggacaaa
aggtcaccaa agcaacacct 7200 ctgccaacga ctaaggcacc tgagacgcct
gcagcaccta aaacaaaagt tatcacctca 7260 tcagaaggca accttccgaa
aacaggggag caacaatctc tgtggatggt ggtcctaggc 7320 gctttgttga
gtctgttctc aggattgtgg ttcgccaaaa agaaagcgtc acattaggcg 7380
ttgagatcaa gattcttaag ctcaaaaagt tgcagttatg aatggtaggg aaacctcatc
7440 atagaaagct gatttttcgg aaactgacag ccggcaagtg agacgtttta
tctcatttgt 7500 cggctgtttt tctggctata cctgttgatg atttttaaat
atttgattca tttttaaatt 7560 cagcggtcca gttgattgac atggtatagc
ccaaccgcta cgcttaaagc atgacaaaga 7620 agggtgtgag cttatggca 7639 29
1257 DNA Lactobacillus rhamnosus 29 atgtgttatc agcgtgaccg
tttcctttca aaccggtcag caaaaccgtc acgttctcat 60 cattttctcg
cccttttctt ttgtcattta tggtagaata caacagttgt gaattgtata 120
tttcgtagga ggatatctac atgccattag ttaacgctgc agagcttgta aaagctgcac
180 ataaaggtca ctactgtatc ggtgccttca acaccaacaa cttggaatgg
actcgtgcca 240 ttctcgccgg cgctcaagaa ttgaacgttc cggttatcat
ccagacttcc atgggtgctg 300 ctaagtacat gggtggctat gaattctgcc
aaaccatgat cgaagctgcc gttaaagcca 360 tggacatcac cgttcctgtt
gtgattcact tggaccacgg taactatgaa gcagccaagg 420 aagctattgc
tgctggctac aactcagtta tgtttgacgg ccacgacctc gactttgaag 480
ataacttgga aaagaccaag gaaatcgtta agctggccca cgccaagggc atttccgttg
540 aagctgaagt tggttccatc ggcggtgaag aagacggtgt tgtcggcgaa
ggtgaattag 600 ctgacgttga agaagccaag actttggcag ctaccgggat
cgacttcctg gcagccggca 660 ttggtaacat ccacggccaa tatccagaca
actggaaagg cctgcacttc gaccgcttac 720 aagaattgaa cgacgctgtt
aagatgccgc tcgttctcca cggtggttcc ggtatccctc 780 aagaacaagt
tcaaaaggcg atcaccatgg gcatttccaa gttgaacatc aacaccgaat 840
gccaacttgc ctttgctaag gcaacacgtg aatacatcga agctggtaag gatcaacaag
900 gcaagggctt tgaccctcgt aagatgctca agccaggcac cgatgcgatc
accgatacct 960 tcaaggaaat caccggctgg attggcaaca agccagttaa
gatggttcct gaagcacttt 1020 aattttttaa tcaaagacca tttaaagaac
ccactcgctg aaattgcgag tgggttcttt 1080 tcgtctctcg tacttaagct
gttaaggata agcgctgccg ctgtgactga atttaggatg 1140 acgtacgctt
agtcctctac ctcatcccat gctcggtctt catcagtcac agcatctctg 1200
aatccttgcc aatcagcggc agtggcaaat aaatcagatc gcagcggtgt cagcaca 1257
30 1153 DNA Lactobacillus rhamnosus 30 ccttcgtaca caaagtaatg
gatattcgcc aaaggttgac agcactgtca aaacaccatc 60 acctaactgc
acgatggaaa catcaaatgt gccgtcgaca aagtcgtaaa ccaaatcttt 120
tctctttgtc gcctttatcc aaaccatatg ccaaggctga cgcggttggt tcgttgataa
180 tccgttgaac attcaaacca gcgatcttac cggcatcctt gtttgcctga
cgctcactgt 240 cattaaagta aaccggaact gtgataaccg catctttaac
cggttcgccc agatagtctt 300 cagaaaattt tttgatgtac tgtaaaatca
tcgctgaaat ttcttgcggg gtgtattctt 360 tatcgccaac cttaacttta
tagttagctt cgcccatgtg acgcttaatt gacacgatgg 420 tatccggatt
agtgatcgcc tggcgttttg ccacttcacc aacttggatt tcaccatctt 480
taaatgcgac aacagatggc gtggtgcgat tgccttccgg gttggtgatg atttttggct
540 gattgccttc caaaaccgca actgcagagt tggtggttcc taagtcaata
ccaataactt 600 tactcatatt tttatacctt ctttatttca gattaattat
ttagcgacaa cgaccatagc 660 agggcgcaga acccgatcct tgagataata
ccctttttgt aacacctgcg cgaccgtgtc 720 agcgggatgt ttgtcgtccg
ccgccacggt ttgtactgcc tgttgggtat tcggatcaaa 780 cttgtcgcca
gcaccatcaa tcgcagtgat gccattttcc ttcaaggcgc gttccagatg 840
atcgtaaacc atctgcacac cttttttgag tgaggccgca ctgtcatctt tggcttcggt
900 tgcaagcgca cgctctagat tgtcaactac cggcaaaatc gccttggcta
acttctggcc 960 gtcatatttc aacatttttt gctgctcttt ttcgaaccgc
gcattcatgt tttgaatctc 1020 tgcagctgcg cgcaaatact tgtcttcgaa
tgcatcacgc tcttgcttca gttgttcacc 1080 atcatgcttg ctggttttca
attgctcatt aagatcagca atgctttcct gcagcccggg 1140 ggatccacta gtt
1153 31 1724 DNA Lactobacillus rhamnosus 31 tgcaaattgc cacggatacc
cagacacaag tcattgcaga cggcgttgtt accaagtata 60 cgccagccaa
tgccatgatc gttgccactc atcggcacac agccaaacag ttgctggccg 120
cagcaggaat accagttgca cgtggggcta agtttactaa atggccggat gccaaagcag
180 cttttgagca cagctttgcg cataaaagta ttgtggtgaa acccgaggca
cgcagccaag 240 gcaaagcggt tgagcagttt tcgataccac cgactgaaaa
gcagtttgac cgagcctttc 300 atgaagccaa tcgccatcat ggggtgctca
ttgaaatgat ggcacgcggc acgacctacc 360 attttaccat catcgggcaa
caagtgctca gcgtcttgga aacagcagca gctaatgttg 420 taggcgatgg
gcgcaaagcc attaaggaat tgatcgcctt gaaaaatggt caccgcgcga 480
cttcccggca attgcagctt gacgccagtg cacggcgtca gttaaaggct caagcgttaa
540 cacccgagac tgtgcttcaa cgcgggcagc aggttttctt aaccactgcc
gcgcatccgc 600 aaaccggtgg cgatttgtat gacgtgacgg acgagattga
tgacagttac aagcaactgg 660 cgctaaaagc tgctgccacg cttgatttgc
cggtagcagc tgtcgacatt gtgattgata 720 atctgtatgc accgtatgat
ccggaggcag atgggcaggc aatcgtgatt agcctcaatc 780 cggtaccgga
tctcgctgtg ccgttgcatc cggacatggg cgaatcacgc gcacttgccc 840
cggcattgct aaactggctg tttgctgtga gataagtaaa cgaggtcata ttaaaaccga
900 cctcagcatg gtaaatttgc tctaaggtcg gttggttaca ccgttcatga
tcatgcttct 960 gcgcgttacg gtcacgatgc tgacatttag gtgcggccac
actccattat attggttaag 1020 ttgcgccaaa cgtctttagc ggttgcttag
ataggttaaa accacttttt cttaggcttt 1080 tcttgcgtgt catcaagtgg
cggtaaggtg atgttagcct gattgatggc agtggctgcc 1140 acaataagta
gccctggcgc ggtatcggca gtttgcgccg tttcgttagc aaccaatgta 1200
aatggcacat tggcatcggt gaggagcttc atgtaaggac cggtaatggc attatcaagt
1260 ttgccgttga gtagggcttt atagttgcgg tcatggaaat cttttaataa
tggggcaacc 1320 tgatgctgtc gtttgggatc agccagttcc tgattgctga
tacataaagc gacccgttca 1380 cgtaacgagc ccatgtactt gcggcgttcg
tcgggtttgg tttgcggtgg gccgtatagt 1440 gcactgttga gatgttcctg
catattgtct tctgccatga tgaaaagcct ccttatgatg 1500 ggtttgatca
aataacgatt taacgatcct tggtgaaccg tcttgttgtg tgaacgcgag 1560
tcgtaatgtt gaaacctgac aacgcgttgc aatatgacct cattgtaaca tgttctagcg
1620 taaagaaagg aatgacgaaa gggtgtttac cagtaacgac tttgcggttt
ttgctgcgcc 1680 aacgctaagt gcgcggatgg ccttgatccg gcaacagttg gatc
1724 32 1000 DNA Lactobacillus rhamnosus 32 gcgtggtgta agattcggta
aggctagagc aaagcggttg tgtgaagtgt gaatccagca 60 agctgaattc
ctgaattgat gaaaggaaga cggatatgta tcgagatctg aatggtaagg 120
ttgcagtcgt gactggtggc tccaaaggca ttggcgcggg cattgcagaa cggtttggcc
180 aagagcatat ggccgttgtg attaattatt taggtgatca cgaaggcgcg
cgaaaaacag 240 ccgatacagt gatcaaaaat ggcggtcagg cagtcagtat
tcatgcagat gtttcgacag 300 aagcggggat agcgagtttg gttaaaactg
ccgagtccga atttggccgc cttgatgtct 360 gggtcaataa tgcaggcatg
gaaattaaag caccgacgca tgaagtgtct ctggatgact 420 ggaataaagt
cattgcgatt aatcaaaccg gggtcttttt aggcgcccgg gctgctttga 480
attattttct cgaccatcac cagccaggca atattattaa catctcatcg gtccatgaac
540 agattccctg gccaacgttt gccagttatg ctgcagctaa agggtcggtt
aagcttttca 600 cggagacgat tgcgatggaa tacgctaacc gcggaattcg
ggtcaacgct atcggccccg 660 gtgccattga gacgccgatt aatgcggaaa
agtttgctga taaggcgcag tatgaccaaa 720 cagtcgccat gattccccaa
ggacggctag gcaaaccgga agatgttgcc gccggagcag 780 cctggctggc
atcgacagag tcaagttacg tcactggcac gaccctattt attgacggcg 840
ggatgacatt atatcctgcg tttaaagacg gacagggctg atcaatgttg cgaagatgca
900 aaaagtcgcc atctcgatta tgaaatggcg actttttgtg tacgggttag
aattcgcgtt 960
ttttatacag cacggtgctt aaccaccaag agaagatgaa 1000 33 1191 DNA
Lactobacillus rhamnosus 33 atggcaaaga ttctcgcagt caatgcaggt
agttcgaccc tgaagtggaa gctttttgat 60 atgccggctg aagtgcagtt
ggctgagggg ttggtcgatc gattgggcca gccgcaatcg 120 aaggttaaaa
ttaaatatgg cgacggtcag aagtacgaga gcgatacccc aattgcaaac 180
tatcaagaag cagttgccag cttgatgggt aatattaagg cgctagggtt agtggagcat
240 ttgcacgaga ttatcggggt cggccatcga gtggttgctg gcggcgaaat
ttttgccgaa 300 tcagttgttg ttgatgatga gacgttgctg cagattcaga
atctgcgcga ctatgcaccg 360 ttgcataatc ccgttgaagc ggactatatt
tcggtttttc ggaaaatgat gccttgggcg 420 aatgaagtgg cagtttttga
cacggctttc caccaaacaa tgcaaccgga gaacttttta 480 tatagcattc
catacgaata ttatgagcaa tatggtgcgc ggaagtatgg tgcgcatgga 540
acaagtgtcc gttatgtgag cgctcgtgct gctgaaatgt tgggcaagcc gctagaagat
600 ctacgtatga ttgtcatgca cttagggtct ggctctagca tcaccgcggt
tcaaggcgga 660 cagtcaattg atacgtccat gggctttacg ccattagcag
gtgtcaccat gggcacgcga 720 tcaggtgata ttgatccgtc attggtaggc
tatctcatga agaagttggc gataccggat 780 gttggccaaa tgattcatat
tctcaacaac gattccggtc tgctaggtat ctccggactc 840 agcaatgata
tgcgtgactt ggaagccgcc gaggacacca atacacgcgc taagctggca 900
ctggatattt ttgtgaaccg cgttgtgaaa tacgttggct cttacgttgc tttaatggat
960 ggcgtcgacg tgctggtctt caccgctggc attggcgaaa acggtgacga
gatccgtgat 1020 aagattatgc ggtcgcttga ttacctcggc gccaaaatcg
acaatgatct gaattacaag 1080 tcacatggcg ttgaagcaga tctaagcacg
gcagattcaa ccgtgaaaac gctgctggta 1140 ccgacaaatg aagaacttat
gattgtacgc gatgtgatgg cactgagcta a 1191 34 33 DNA Artificial
Sequence Made in the lab 34 ccgccgccgg gatccaccag cgcatcatct gac 33
35 36 DNA Artificial Sequence Made in the lab 35 ccgccgccgg
aattcttact tggtggttaa atcggt 36 36 39 DNA Artificial Sequence Made
in the lab 36 ccgccgccgg gatccctaag cagtagtgca gttgatgcc 39 37 39
DNA Artificial Sequence Made in the lab 37 ccgccgccgc tcgagttaat
cgttgatcac taccgtcgc 39 38 35 DNA Artificial Sequence Made in the
lab 38 ccgccgccgg aattcccttt gggattcaag cggtg 35 39 41 DNA
Artificial Sequence Made in the lab 39 ccgccgccgg cggccgctca
attcttggca gcatcaatag c 41 40 37 DNA Artificial Sequence Made in
the lab 40 ccgccgccgg gatcccattc gttgacgttg gacaatc 37 41 42 DNA
Artificial Sequence Made in the lab 41 ccgccgccgg aattcttaac
ctagtaacgc ttgtaaacga gc 42 42 632 PRT Lactobacillus rhamnosus 42
Met Thr Leu Pro Arg Ile Gln Asp Asp Leu Tyr Leu Ala Val Asn Gly 1 5
10 15 Glu Trp Gln Ala Lys Thr Pro Ile Pro Pro Asp Lys Ser Val Val
Ser 20 25 30 Ala Asp Ser Asn Leu Thr Asp Asp Ile Arg Gln Lys Leu
Val Ala Asp 35 40 45 Leu Ser Thr Met Thr Lys Thr Ala Lys Thr Leu
Pro Leu Gln Tyr Ala 50 55 60 Ala Arg Leu Phe Ala Lys Ala Asn Asp
Gln Thr Arg Arg Gln Gln Leu 65 70 75 80 Gly Ile Glu Pro Val Arg Asp
Arg Ile Ser Phe Leu Met Ala Leu Thr 85 90 95 Thr Leu Asp Gln Phe
Arg Ser Ala Met Pro Lys Leu Val Ala Asp Gln 100 105 110 Tyr Val Leu
Pro Ile Ser Pro Tyr Val Asp Ala Asp Met His Asp Ala 115 120 125 Glu
His Asn Ile Leu Asn Leu Gly Gly Pro Asp Thr Ile Leu Pro Asp 130 135
140 Ala Ala Met Tyr Gln His Glu Asp Ala Glu Asn Ala Ala Asp Leu Ala
145 150 155 160 Ala Trp Ser Gln Met Ala Ala Ala Met Leu Ala Ala Val
Gly Phe Ser 165 170 175 Gln Thr Asp Gln Thr Ala Tyr Val Glu Ala Ala
Lys Arg Phe Asp Arg 180 185 190 Arg Leu Ala Asp Tyr Val Pro Ala Asn
Val Asp Leu Ala Val Asp Ser 195 200 205 Thr Tyr Asp Asn Pro Leu Ser
Trp Gln Ala Phe Glu Asp Ala Ala Gly 210 215 220 Tyr Leu Gly Ile Pro
Gln Ala Phe Ala Thr Tyr Met Pro Gln Thr Pro 225 230 235 240 Ala Lys
Val Asn Ala Val Val Pro Ala Tyr Leu Pro His Leu Ser Lys 245 250 255
Leu Leu Thr Pro Asp Asn Tyr Ser Glu Trp His Ala Trp Met Val Ile 260
265 270 Asn Glu Leu Leu Thr Cys Ala Thr Tyr Leu Ser Asp Asp Leu Arg
Gln 275 280 285 Leu Ala Gly Gln Tyr Asp Arg Phe Leu Ala Gly Gln Pro
Glu Ala Ser 290 295 300 Ser Trp Thr Lys His Ala Phe Gly Ile Ala Asn
Glu Tyr Phe Asp Asp 305 310 315 320 Val Ile Gly Gln Tyr Tyr Gly Gln
Thr Tyr Phe Gly Ala Asp Ala Lys 325 330 335 Ala Asp Val Thr Ala Met
Val Lys Gln Ile Leu Ala Gln Tyr Arg Val 340 345 350 Gln Leu Glu Asn
Asn Thr Trp Leu Ser Pro Ala Thr Lys Gln Lys Ala 355 360 365 Met Arg
Lys Leu Ala Thr Met Gln Val Lys Met Gly Tyr Pro Glu Arg 370 375 380
Leu Phe Ser Leu Tyr Asp His Leu Ser Val Asp Val Asp Asp Asp Leu 385
390 395 400 Leu Thr Ala Ile Leu Lys Leu Ser Ala Gln Thr Gln Ala Phe
Trp Phe 405 410 415 Lys Gln Leu Gly Gln Thr Val Asp Arg Asn Gln Trp
Asn Met Pro Gly 420 425 430 His Leu Val Asn Ala Ser Tyr Asp Pro Leu
Lys Asn Asp Ile Thr Phe 435 440 445 Pro Ala Gly Ile Leu Gln Pro Pro
Tyr Tyr Ser Leu Lys Trp Thr Arg 450 455 460 Ala Glu Asn Leu Gly Gly
Thr Gly Ala Thr Ile Gly His Glu Ile Ser 465 470 475 480 His Ser Phe
Asp Asn Asn Gly Ala Leu Tyr Asp Glu Tyr Gly Asn Leu 485 490 495 His
Asn Trp Trp Thr Pro Ala Asp Lys Gln Ala Phe Asp Gln Leu Val 500 505
510 Lys Ala Met Ala Ala Gln Phe Asp Gly Arg Asp Tyr Glu Gly Val Lys
515 520 525 Val Asn Gly Thr Leu Thr Val Ser Glu Asn Met Ala Asp Asn
Ala Gly 530 535 540 Met Asp Val Ala Leu Ala Leu Leu Gly Asp Gln Pro
Asp Val Lys Asp 545 550 555 560 Leu Gln Ala Phe Phe Ile Thr Tyr Ala
Arg Ser Trp Ala Thr Lys Met 565 570 575 Arg Pro Glu Arg Ala Lys Thr
Val Leu Arg Gln Asp Val His Ala Pro 580 585 590 Ala Thr Leu Arg Val
Asn Val Pro Val Gln Asn Phe Pro Ala Trp Tyr 595 600 605 Gln Ala Phe
Asn Val Gln Pro Gln Asp Gly Met Tyr Arg Gln Pro Gln 610 615 620 Lys
Arg Leu Thr Ile Trp His Gln 625 630 43 242 PRT Lactobacillus
rhamnosus 43 Met Ile His Met Ala Lys Lys Asp Phe Asn Gln Leu Ala
Leu Asp Gln 1 5 10 15 Ala Lys Val Asn Gly Gly Lys Leu Ser Val Glu
Pro Lys Val Pro Ile 20 25 30 Glu Thr Arg Asp Asp Leu Ser Ile Ala
Tyr Thr Pro Gly Val Gly Ala 35 40 45 Val Ser Ser Ala Ile Ala Lys
Asp Gln Ser Leu Val Tyr Asp Leu Thr 50 55 60 Thr Lys Lys Asn Thr
Val Ala Val Val Ser Asp Gly Ser Ala Val Leu 65 70 75 80 Gly Leu Gly
Asn Ile Gly Ala Glu Ala Ala Met Pro Val Met Glu Gly 85 90 95 Lys
Ala Ala Leu Phe Lys Arg Phe Ala Lys Val Asp Ala Val Pro Ile 100 105
110 Val Leu Asp Thr Gln Asp Thr Glu Ala Ile Ile Ala Ala Val Lys Ala
115 120 125 Ile Ala Pro Thr Phe Gly Gly Ile Asn Leu Glu Asp Ile Ser
Ala Pro 130 135 140 Arg Cys Phe Glu Ile Glu Ala Arg Leu Ile Asp Glu
Leu Asn Ile Pro 145 150 155 160 Val Phe His Asp Asp Gln His Gly Thr
Ala Ile Val Val Leu Ala Ala 165 170 175 Leu Tyr Asn Ala Leu Lys Val
Ala Asp Lys Lys Ile Glu Asp Ile Arg 180 185 190 Val Val Val Asn Gly
Gly Gly Ser Ala Gly Leu Ser Val Ala Arg Arg 195 200 205 Phe Leu Ala
Ala Gly Val Lys His Val Met Val Val Asp Lys Val Gly 210 215 220 Ile
Leu Ala Lys Lys Asn Ala Asp Gln Leu Pro Pro His Gln Ala Gly 225 230
235 240 Leu Pro 44 317 PRT Lactobacillus rhamnosus 44 Met Ala Asp
Glu Glu Ala Met Leu Ala Lys Val Gln Ala Ser Trp Ala 1 5 10 15 Gln
Thr Ala Ala Arg Asp Lys Ala Arg Tyr Ala Asp Glu Arg Val Pro 20 25
30 Glu Asp Val His Trp Glu Thr Glu Tyr Arg Tyr Glu Gln Ser Ala Asp
35 40 45 Pro Gln Gln Thr Leu Asn Leu Tyr Tyr Pro Ala Lys Arg Arg
Asn Ala 50 55 60 Thr Met Pro Thr Val Ile Asp Ile His Gly Gly Gly
Trp Phe Tyr Gly 65 70 75 80 Asp Arg Asn Leu Asn Arg Asn Tyr Cys Arg
Tyr Leu Ala Ser Gln Gly 85 90 95 Tyr Ala Val Met Gly Met Gly Tyr
Arg Leu Leu Pro Asp Val Asp Leu 100 105 110 Arg Gly Gln Ile Gln Asp
Ile Phe Ala Ser Leu Arg Trp Leu Ser His 115 120 125 Phe Gly Pro Gln
Arg Gly Phe Asp Leu Asp His Val Leu Leu Thr Gly 130 135 140 Asp Ser
Ala Gly Gly His Leu Ala Ser Leu Val Ala Cys Ile Gln Gln 145 150 155
160 Ser Ala Glu Leu Gln Glu Leu Phe Gly Val Ser Arg Val Asn Phe Asn
165 170 175 Phe Thr Leu Val Ala Leu Val Cys Pro Val Ala Glu Pro Ser
Lys Leu 180 185 190 Pro Glu Ala Ala Gly Asp Met Ser Asp Met Ala Ala
Phe Tyr Leu Asp 195 200 205 Lys Leu Ser Gly Gly Asp Gln Ala Leu Ala
Asp His Leu Asn Phe Ser 210 215 220 Gln Val Val Lys Gly Leu Asp Leu
Pro Pro Phe Met Leu Ile Gly Gly 225 230 235 240 Gln Asn Asp Ser Phe
Tyr Leu Gln Ser Gln Ala Leu Leu Lys Val Phe 245 250 255 Asp Ala Asn
His Val Thr Tyr Thr Thr Lys Leu Trp Pro Ala Ser Ala 260 265 270 Gly
Pro His Leu Lys His Val Phe Asn Val Gln His Trp Glu Trp Pro 275 280
285 Glu Ser Ile Glu Thr Asn Leu Glu Met Leu Arg Thr Phe Asp Ala Leu
290 295 300 Ser Lys Gln Gln Asp Gln Ala Glu Glu Asn Glu Phe Glu 305
310 315 45 88 PRT Lactobacillus rhamnosus 45 Met Glu Lys Arg Glu
Phe Asn Ile Ile Ala Glu Thr Gly Ile His Ala 1 5 10 15 Arg Pro Ala
Thr Leu Leu Val Gln Ala Ala Ser Lys Phe Asn Ser Asp 20 25 30 Ile
Asn Leu Glu Tyr Lys Gly Lys Ser Val Asn Leu Lys Ser Ile Met 35 40
45 Gly Val Met Ser Leu Gly Val Gly Gln Gly Ala Asp Val Thr Ile Ser
50 55 60 Ala Glu Gly Ala Asp Glu Ala Asp Ala Ile Ala Ala Ile Thr
Asp Thr 65 70 75 80 Met Lys Lys Glu Gly Leu Ala Glu 85 46 378 PRT
Lactobacillus rhamnosus 46 Met Thr Gln Phe Asn Thr Lys Leu Val His
Gly Pro Gln Leu Asn Val 1 5 10 15 Asp Gln Ala Gly Ala Ile Val Pro
Pro Val Tyr Gln Ser Ala Met Phe 20 25 30 Arg Phe Ala Pro Asp Gly
Gln Glu Thr His Trp Asp Tyr Ala Arg Ser 35 40 45 Gly Asn Pro Thr
Arg Glu Tyr Leu Glu Arg Gln Ile Ala Thr Leu Glu 50 55 60 Asn Gly
Asp Ala Gly Phe Ala Phe Ser Ser Gly Val Ala Ala Ile Ala 65 70 75 80
Thr Val Leu Ala Ile Phe Pro Asp His Ser His Phe Ile Ile Gly Asp 85
90 95 Ser Leu Tyr Ser Gly Thr Asp Arg Leu Ile Asn Gln Tyr Phe Ser
Gln 100 105 110 His Gly Leu Thr Phe Thr Pro Val Asp Thr Arg Asp Leu
Ala Ala Val 115 120 125 Glu Ala Ala Ile Arg Pro Glu Thr Lys Ala Ile
Phe Phe Glu Thr Phe 130 135 140 Ser Asn Pro Leu Leu Lys Val Ser Ser
Val Lys Ala Ile Ser Ala Leu 145 150 155 160 Ala Lys Thr His Asp Leu
Leu Thr Ile Val Asp Asn Thr Phe Leu Thr 165 170 175 Pro Tyr Tyr Gln
Arg Pro Leu Asp Leu Gly Ala Asp Ile Val Leu His 180 185 190 Ser Ala
Thr Lys Tyr Leu Gly Gly His Gly Asp Leu Ile Ala Gly Leu 195 200 205
Val Val Ser Ala His Pro Asp Leu Ser Glu Lys Leu Ala Phe Leu Gln 210
215 220 Asn Thr Ile Gly Ala Ile Leu Ser Pro Leu Asp Cys Ser Leu Val
Thr 225 230 235 240 Arg Gly Ile Ala Thr Leu Ser Val Arg Leu Asp Arg
Glu Thr Ala Asn 245 250 255 Ala Gln Ala Val Ala Glu Phe Leu Ala Gln
His Pro Asp Val Ala His 260 265 270 Val Tyr Tyr Pro Gly Leu Lys Asn
Asp Pro Gly Tyr Ala Leu Ala Gln 275 280 285 Lys Glu Thr Thr Gly Ala
Ser Gly Leu Leu Thr Ile Lys Leu Ala Asp 290 295 300 Asn Ile Asp Pro
Leu Lys Phe Val Asn Ser Thr Lys Ile Phe Asp Phe 305 310 315 320 Ala
Asp Ser Leu Gly Thr Val Ser Ser Leu Val Lys Leu Pro Trp Phe 325 330
335 Lys Leu Pro Glu Asp Lys Arg Ala Asp Phe Gly Leu Thr Pro Gln His
340 345 350 Val Arg Ile Ala Ile Gly Leu Glu Asp Gln Gln Asp Leu Ile
Asp Asp 355 360 365 Leu Gln Gln Ala Leu Val Ala Ala Glu Lys 370 375
47 270 PRT Lactobacillus rhamnosus 47 Met Leu Lys Lys Lys Leu Trp
Phe Leu Leu Pro Leu Val Ala Leu Val 1 5 10 15 Thr Phe Thr Leu Thr
Ala Cys Thr Ser Ala Ser Ser Asp Thr Ser Lys 20 25 30 Asn Ser Asp
Val Thr Ala Glu Leu Ile Asn Lys Asn Glu Leu Thr Ile 35 40 45 Gly
Leu Glu Gly Thr Tyr Ala Pro Phe Ser Tyr Arg Lys Asp Gly Lys 50 55
60 Leu Glu Gly Phe Glu Val Glu Leu Gly Lys Ala Leu Ala Lys Lys Ile
65 70 75 80 Gly Val Lys Ala Lys Phe Val Pro Thr Gln Trp Asp Ser Leu
Ile Ala 85 90 95 Gly Leu Gly Ser Gln Lys Phe Asp Leu Val Leu Asn
Asp Ile Ser Glu 100 105 110 Thr Pro Ala Arg Lys Lys Val Tyr Asn Phe
Thr Thr Pro Tyr Met Tyr 115 120 125 Ser Arg Tyr Ala Leu Ile Thr Arg
Ser Asp Asn Thr Thr Ile Lys Ser 130 135 140 Leu Ala Asp Ile Lys Gly
Lys Thr Phe Val Glu Gly Thr Gly Thr Pro 145 150 155 160 Asn Ala Ala
Leu Ala Lys Lys Tyr Gly Ala Lys Ile Thr Pro Ser Gly 165 170 175 Asp
Phe Thr Val Ser Leu Ser Leu Val Lys Glu Lys Arg Ala Asp Gly 180 185
190 Thr Ile Asn Ala Ser Ala Ala Trp Tyr Ala Phe Ala Lys Asn Asn Ser
195 200 205 Thr Ala Gly Leu Lys Ser Gln Thr Leu Lys Asp Ser Val Val
Lys Pro 210 215 220 Asp Glu Val Ala Gly Met Val Ser Lys Lys Ser Pro
Lys Leu Gln Ala 225 230 235 240 Ala Leu Ser Lys Gly Ile Gln Glu Leu
Arg Lys Asp Gly Thr Leu Lys 245 250 255 Lys Leu Ser Gln Lys Tyr Phe
Gly Thr Asp Leu Thr Thr Lys 260 265 270 48 221 PRT Lactobacillus
rhamnosus 48 Met Pro Asp Val Arg Phe His Ser Val Phe Asp Ile Ile
Gly Pro Val 1 5 10 15 Met Val Gly Pro Ser Ser Ser His Thr Ala Gly
Ala Ala Arg Ile Gly 20 25 30 Lys Val Val Arg Asp Ile Phe Gly Glu
Pro Pro Glu Thr Ile Thr Ile 35 40 45 Tyr Leu Tyr Glu Ser Phe Ala
Lys Thr Tyr Arg Gly His Gly Thr Asp 50 55 60 Val Ala Leu Val Ala
Gly Leu Leu Gly Met Ala Pro Asp Asp Pro Arg 65 70 75 80 Leu Pro Glu
Ser Leu Lys Leu Ala Tyr Asp Gln Gly Ile Lys Val Ser 85 90 95 Phe
Val Pro Lys Ser Asp Lys Val Asp His Pro Asn Thr Ala His Ile 100 105
110 Val Leu Gln Ala Gly Asp His Arg Leu Ala Val Thr Gly Val Ser Ile
115 120 125 Gly Gly Gly Asn Ile Gln Ile Thr Glu Ile Asn Gly Phe Lys
Ile Ser 130 135 140 Leu Ser Met Gly Gln Pro Thr Tyr Ile Thr Ile
His
Asp Asp Val Pro 145 150 155 160 Gly Met Ile Ala Gln Val Thr Lys Ile
Phe Ser Asp Ala Gly Ile Asn 165 170 175 Ile Gly Thr Met Thr Val Thr
Arg Thr Ala Lys Gly Glu Gln Ala Ile 180 185 190 Met Ile Ile Glu Thr
Asp Asp Tyr His Asp Asp Ile Leu Ala Lys Leu 195 200 205 Lys Leu Leu
Pro His Met Arg Asn Val Thr Tyr Phe Glu 210 215 220 49 289 PRT
Lactobacillus rhamnosus 49 Met Phe Tyr Thr Val Lys Glu Leu Val Glu
Gln Ser His Ala Phe Ser 1 5 10 15 Ser Val Ala Glu Leu Met Val His
Thr Glu Val Glu Asn Ser Thr Arg 20 25 30 Thr Glu Ala Gln Ile Arg
His Leu Met Ser Arg Asn Leu Glu Val Met 35 40 45 Glu Arg Ser Val
Lys Glu Gly Ile Ala Gly Val Lys Ser Val Thr Gly 50 55 60 Leu Thr
Gly Gly Glu Ala Lys Lys Leu Asn His Tyr Ile Ala Asp Asp 65 70 75 80
Arg Phe Met Ser Gly Lys Pro Ile Met Glu Ala Val Arg Asn Ala Val 85
90 95 Ala Val Asn Glu Val Asn Ala Lys Met Gly Leu Ile Cys Ala Thr
Pro 100 105 110 Thr Ala Gly Ser Ala Gly Val Leu Ala Gly Val Leu Leu
Ala Met Arg 115 120 125 Asp Arg Leu His Leu Thr His Asp Gln Gln Leu
Asp Phe Leu Phe Thr 130 135 140 Ala Gly Ala Phe Gly Leu Val Ile Ala
Asn Asn Ala Gly Ile Ala Gly 145 150 155 160 Ala Glu Gly Gly Cys Gln
Glu Glu Val Gly Ser Ala Ser Ala Met Ala 165 170 175 Ala Ala Ala Leu
Val Cys Ala Asn Gly Gly Ser Ala Glu Gln Ala Ala 180 185 190 Thr Ala
Val Ala Ile Thr Leu Gln Asn Met Leu Gly Leu Val Cys Asp 195 200 205
Pro Val Ala Gly Leu Val Glu Val Pro Cys Val Lys Arg Asn Ala Leu 210
215 220 Gly Ala Ser Gln Ala Met Ile Ser Ala Asp Met Ala Leu Ala Gly
Cys 225 230 235 240 Ile Ser Val Ile Pro Ala Asp Glu Val Ile Glu Ala
Val Asn Arg Val 245 250 255 Gly Met Gln Leu Pro Ala Thr Leu Arg Glu
Thr Gly Glu Gly Gly Leu 260 265 270 Ala Thr Thr Pro Thr Gly Leu Arg
Leu Lys Glu Gln Ile Phe Gly Lys 275 280 285 Lys 50 368 PRT
Lactobacillus rhamnosus 50 Met Phe Lys Pro Thr Ile His Gln Leu His
Pro Tyr Thr Pro Glu Lys 1 5 10 15 Pro Leu Ala Val Leu Lys Glu Glu
Leu Gly Leu Pro Gln Leu Val Arg 20 25 30 Met Ser Ala Asn Glu Asn
Pro Phe Gly Thr Ser Val Lys Val Gln Gln 35 40 45 Ala Val Thr Asn
Trp Asn Phe Thr Gln Ser Arg Asp Tyr Pro Asp Gly 50 55 60 Tyr Ala
Ser Gln Leu Arg Thr Ala Val Ala Lys His Leu Asp Val Ala 65 70 75 80
Ala Glu Gln Leu Val Phe Gly Asn Gly Leu Asp Glu Val Ile Ala Leu 85
90 95 Ile Ala Arg Thr Phe Leu Ser Pro Gly Asp Glu Val Ile Glu Pro
Trp 100 105 110 Pro Thr Phe Ser Glu Tyr Arg Leu His Ala Gln Ile Glu
Gly Ala Thr 115 120 125 Val Ile Asp Val Pro Val Thr Glu Thr Gly Asn
Phe Asp Leu Ser Ala 130 135 140 Met Ala Gln Ala Leu Thr Ala Lys Thr
Lys Leu Ile Trp Val Cys Asn 145 150 155 160 Pro Asn Asn Pro Thr Gly
Thr Leu Leu Ser Ile Ala Thr Leu Thr Glu 165 170 175 Trp Leu Arg Gln
Ile Pro Lys Asp Val Leu Val Leu Met Asp Glu Ala 180 185 190 Tyr Ile
Glu Phe Thr Asp Asp Tyr Pro Ala Thr Ser Ala Ile Ser Leu 195 200 205
Leu Ser Lys Phe Pro Asn Leu Val Val Leu Arg Thr Phe Ser Lys Ile 210
215 220 Tyr Gly Leu Ala Asn Phe Arg Val Gly Phe Gly Val Phe Pro Lys
Gln 225 230 235 240 Leu Val Asn Tyr Leu Gln Thr Val Arg Leu Pro Tyr
Asn Leu Ser Ser 245 250 255 Ile Ala Gln Val Ser Ala Gln Ala Ala Leu
Ala Asp Gln Asp Phe Val 260 265 270 Ala Met Thr Arg Lys Arg Val Gln
Gln Ala Arg Asp Ser Trp Glu Arg 275 280 285 Phe Leu Thr Gln Thr Gly
Leu Pro His Thr Arg Ser Gln Thr Asn Phe 290 295 300 Gln Phe Phe Gln
Ala Pro Lys Met Gln Ala Ser Ala Leu Lys Lys Arg 305 310 315 320 Leu
Leu Gln Gln Gly Phe Leu Val Arg Asp Gly Leu Lys Pro Gly Trp 325 330
335 Leu Arg Val Thr Phe Gly Thr Glu Val Gln Asn Thr Ala Val Gln Arg
340 345 350 Ile Ile Glu Thr Phe Gln Ala Glu Leu Thr Gly Pro Asn Ala
Leu Lys 355 360 365 51 301 PRT Lactobacillus rhamnosus 51 Leu Ala
Arg Thr Ile Gly Ile Ile Gly Ile Gly His Val Gly Val Thr 1 5 10 15
Thr Ala Phe Asn Leu Val Ser Lys Gly Ile Ala Asp Arg Leu Val Leu 20
25 30 Ile Asp Gln Lys Ala Asp Leu Ala Glu Gly Glu Ser Tyr Asp Leu
Lys 35 40 45 Asp Ala Leu Gly Gly Leu Pro Thr Tyr Thr Glu Ile Ile
Val Asn Asp 50 55 60 Tyr Asp Ala Leu Lys Asp Ala Asp Val Val Ile
Ser Ala Val Gly Asn 65 70 75 80 Ile Gly Ala Ile Ser Asn Gly Asp Arg
Ile Gly Glu Thr Gln Thr Ser 85 90 95 Lys Gln Ala Leu Asp Asp Val
Ala Pro Lys Leu Lys Ala Ser Gly Phe 100 105 110 His Gly Val Leu Leu
Asp Ile Thr Asn Pro Cys Asp Ala Val Thr Ser 115 120 125 Tyr Trp Gln
Tyr Leu Leu Asp Leu Pro Lys Ser Gln Ile Ile Gly Thr 130 135 140 Gly
Thr Ser Leu Asp Thr Tyr Arg Met Arg Arg Ala Val Ala Glu Ser 145 150
155 160 Leu Asn Val Asn Val Ala Asp Val Arg Gly Tyr Asn Met Gly Glu
His 165 170 175 Gly Glu Ser Gln Phe Thr Ala Trp Ser Thr Val Arg Val
Asn Asn Glu 180 185 190 Pro Ile Thr Asp Tyr Ala Gln Val Asp Tyr Asp
Gln Leu Ala Asp Ala 195 200 205 Ala Arg Ala Gly Gly Trp Lys Ile Tyr
Gln Ala Lys His Tyr Thr Ser 210 215 220 Tyr Gly Ile Ala Thr Ile Ala
Thr Glu Met Thr Gln Ala Ile Ile Ser 225 230 235 240 Asp Ala Lys Arg
Ile Phe Pro Cys Ala Asn Tyr Asp Pro Glu Phe Gly 245 250 255 Ile Ala
Ile Gly His Pro Ala Thr Ile Gly Lys Leu Gly Val Val Asn 260 265 270
Thr Pro Lys Leu Lys Leu Thr Asp Glu Glu Arg Ala Lys Tyr Val His 275
280 285 Ser Ala Gly Ile Ile Lys Ala Thr Val Glu Lys Met Lys 290 295
300 52 495 PRT Lactobacillus rhamnosus 52 Leu Asp His Asp Leu Leu
Lys Ala Ile Ala Gln Ser Gly Phe Glu Glu 1 5 10 15 Ala Thr Pro Ile
Gln Ala Glu Thr Ile Pro Leu Val Leu Glu Gly Lys 20 25 30 Asp Val
Ile Gly Gln Ala Gln Thr Gly Thr Gly Lys Thr Ala Ala Phe 35 40 45
Gly Leu Pro Ile Leu Gln His Ile Asp Lys Ala Asp Arg Ser Ile Gln 50
55 60 Ala Leu Val Ile Ser Pro Thr Arg Glu Leu Ala Ile Gln Thr Gln
Glu 65 70 75 80 Glu Leu Tyr Arg Leu Gly Arg Asp Lys Lys Ile Lys Val
Gln Ala Val 85 90 95 Tyr Gly Gly Ala Asp Ile Arg Arg Gln Ile Arg
Gln Leu Ala Asp His 100 105 110 Pro Gln Ile Val Val Gly Thr Pro Gly
Arg Ile Leu Asp His Ile Gly 115 120 125 Arg His Thr Leu Lys Leu Glu
His Leu Asp Thr Leu Val Leu Asp Glu 130 135 140 Ala Asp Glu Met Leu
Asp Met Gly Phe Ile Asp Asp Ile Glu Lys Ile 145 150 155 160 Val Glu
Gln Met Pro Thr Glu Arg Gln Thr Leu Leu Phe Ser Ala Thr 165 170 175
Met Pro Ala Ala Ile Met Arg Leu Thr Asn Lys Phe Met Lys Glu Pro 180
185 190 Val Ile Val Lys Ile Lys Ala Lys Glu Leu Thr Ala Asp Thr Val
Glu 195 200 205 Gln Tyr Tyr Val Arg Ala Lys Asp Tyr Glu Lys Phe Asp
Val Met Thr 210 215 220 Arg Leu Phe Asp Val Gln Asp Pro Asp Leu Ala
Leu Ile Phe Gly Arg 225 230 235 240 Thr Lys Arg Arg Val Asp Glu Leu
Thr Arg Gly Leu Lys Ala Arg Gly 245 250 255 Tyr Arg Ala Glu Gly Ile
His Gly Asp Leu Thr Gln Gln Lys Arg Met 260 265 270 Ser Val Leu Arg
Gln Phe Lys Ser Gly Gln Leu Asp Phe Leu Val Ala 275 280 285 Thr Asp
Val Ala Ala Arg Gly Leu Asp Ile Ser Gly Val Thr His Val 290 295 300
Tyr Asn Tyr Asp Ile Pro Gln Asp Pro Asp Ser Tyr Val His Arg Ile 305
310 315 320 Gly Arg Thr Gly Arg Ala Gly His Lys Gly Val Ser Val Thr
Phe Val 325 330 335 Thr Pro Asn Glu Ile Glu Tyr Leu His Thr Ile Glu
Asp Leu Thr Lys 340 345 350 Lys Arg Met Leu Pro Met Lys Pro Pro Thr
Ala Glu Glu Ala Leu Met 355 360 365 Gly Gln Ile Ser Ser Gly Leu Ala
Thr Ile Lys Glu Gln Val Glu Ala 370 375 380 Asn Asp Thr Glu Lys Tyr
Glu Ala Met Ala Glu Thr Leu Leu Glu Asn 385 390 395 400 Tyr Thr Pro
Leu Gln Leu Val Ser Ala Tyr Leu Lys Ala Val Ser Pro 405 410 415 Asp
Asp Ala Ser Ala Val Pro Val Lys Ile Thr Pro Glu Arg Pro Leu 420 425
430 Pro Arg Arg Gly Arg Asn Asn His Gly His Gly Asn Asn Arg Gly Gly
435 440 445 Tyr Lys Gly Gly Tyr Lys Gly Lys Arg Arg Asp Gly Gly Tyr
Gln Gly 450 455 460 Asn Arg Asp Gly Lys Arg Ser Tyr Asp Lys Lys Arg
Asn Phe Gly Asp 465 470 475 480 Lys Arg Lys Asn Val Lys Arg Asn Phe
Lys Ile Arg Thr Gly Glu 485 490 495 53 390 PRT Lactobacillus
rhamnosus 53 Met Thr Leu Gln Pro Leu Asn Glu Gln Leu Pro Ala Ile
Glu Val Ser 1 5 10 15 Glu Ile Arg Gln Phe Asp Glu Ser Val Ser Asp
Ile Pro Gly Ile Leu 20 25 30 Lys Leu Thr Leu Gly Glu Pro Asp Phe
Asn Thr Pro Glu His Val Lys 35 40 45 Gln Ala Gly Ile Lys Ala Ile
Gln Glu Asn Tyr Ser His Tyr Thr Gly 50 55 60 Met Val Gly Asp Pro
Glu Leu Arg Glu Ala Ala Gln His Phe Phe Lys 65 70 75 80 Thr Lys Tyr
Ala Thr Asp Tyr Arg Ala Thr Asp Glu Ile Leu Val Thr 85 90 95 Val
Gly Ala Thr Glu Ala Leu Ala Thr Ala Ile Thr Thr Ile Ser Asp 100 105
110 Pro Gly Asp Ala Met Leu Val Pro Ser Pro Ile Tyr Pro Gly Tyr Ile
115 120 125 Pro Leu Leu Thr Leu Asn His Val Thr Pro Leu Tyr Met Asp
Thr Ser 130 135 140 Lys Thr Asp Phe Val Leu Thr Pro Glu Leu Ile Glu
Ala Thr Ile Thr 145 150 155 160 Ala Asn Pro Asp Ala Lys Ile Lys Gly
Ile Ile Leu Asn Tyr Pro Ser 165 170 175 Asn Pro Thr Gly Val Thr Tyr
Arg Ala Ala Glu Val Lys Ala Ile Ala 180 185 190 Asp Ile Ala Ala Lys
His Asn Leu Tyr Ile Ile Cys Asp Glu Ile Tyr 195 200 205 Ser Glu Leu
Thr Tyr Gly Glu Pro His Val Ser Met Gly Gln Phe Ala 210 215 220 Tyr
Asp Arg Thr Phe Ile Val Asn Gly Leu Ser Lys Ser His Ala Met 225 230
235 240 Thr Gly Trp Arg Ile Gly Phe Leu Met Gly Pro Gln Gln Leu Ile
Ala 245 250 255 Gln Ala Lys Lys Val His Gln Tyr Leu Val Thr Ala Ala
Thr Thr Ile 260 265 270 Ala Gln Arg Ala Gly Ile Glu Ala Leu Thr Asn
Gly Ala Asp Asp Ala 275 280 285 Gln Val Met Lys Ala Ala Tyr Val Lys
Arg Arg Asp Phe Val Tyr Ala 290 295 300 Ala Leu Ile Asp Met Gly Phe
Ser Val Ala Arg Pro Asp Gly Ala Phe 305 310 315 320 Tyr Leu Phe Ala
Lys Ile Pro Thr Gln Leu His Leu Ser Ser Arg Glu 325 330 335 Phe Thr
His Ala Leu Ala His Glu Gln Lys Leu Ala Leu Ile Ser Gly 340 345 350
Thr Ala Phe Gly Pro Gly Gly Glu Gly Tyr Ile Arg Ile Ser Tyr Ala 355
360 365 Ala Ser Met Thr Asp Leu Gln Glu Ala Val Lys Arg Leu Arg Ala
Phe 370 375 380 Met Ala Ser His Ile Gly 385 390 54 391 PRT
Lactobacillus rhamnosus 54 Val His Leu Ala Lys Arg Ile Leu Asn Val
Ala Pro Ser Ala Thr Leu 1 5 10 15 Ala Leu Ser Asn Gln Thr Lys Asp
Leu Lys Ala Lys Gly Ala Asp Val 20 25 30 Ile Asp Leu Ser Ile Gly
Gln Pro Asp Phe Ser Thr Pro Lys Ala Ile 35 40 45 Asp Asp Ala Ala
Ile Ala Ala Ile Gln Ala Gly Asn Ala Ser Phe Tyr 50 55 60 Thr Ala
Ala Thr Gly Ile Pro Glu Leu Lys Gln Ala Ile Ser Asp Arg 65 70 75 80
Ile Phe Ala Gln Asp Gly Ile Arg Tyr Asp His Arg Gln Ile Val Ala 85
90 95 Thr Thr Gly Ala Lys Phe Ala Leu Tyr Ala Leu Phe Gln Val Phe
Leu 100 105 110 Asn Pro Gly Asp Glu Val Leu Ile Pro Val Pro Tyr Trp
Val Ser Tyr 115 120 125 Glu Glu Gln Ile Lys Leu Ala Ser Gly Val Pro
His Leu Val Met Pro 130 135 140 Ala Val Gly His Lys Val Ser Val Asp
Asp Leu Glu Ala Ala Arg Thr 145 150 155 160 Asp Lys Thr Arg Ala Leu
Ile Ile Asn Ser Pro Gln Asn Pro Ser Gly 165 170 175 Val Val Tyr Asp
Arg Thr Glu Leu Thr Leu Ile Gly Asn Trp Ala Leu 180 185 190 Lys His
His Ile Leu Val Val Thr Asp Asp Ile Tyr Arg Asp Leu Ile 195 200 205
Tyr Asn Gly Thr Thr Tyr Thr Ser Met Ile Ser Ile Asp Pro Asp Ile 210
215 220 Ala Ala Asn Thr Val Leu Ile Ser Gly Val Ser Lys Ser Tyr Ala
Met 225 230 235 240 Thr Gly Trp Arg Ile Gly Tyr Ala Ala Gly Pro Glu
Lys Leu Ile Gln 245 250 255 Ala Met Ala Thr Phe Ile Ser His Thr Thr
Ser Asn Pro Ala Ala Val 260 265 270 Ser Glu Tyr Ala Ala Val Ala Ala
Leu Thr Gly Asp Gln Gln Val Val 275 280 285 Glu Lys Met Arg Arg Ala
Phe Glu Glu Arg Leu Asn Leu Phe Tyr Asp 290 295 300 Leu Leu Ala Asp
Ile Pro Gly Phe Asp Met Gly Asp Lys Pro Gln Gly 305 310 315 320 Ala
Phe Tyr Leu Phe Pro Asn Ile Lys Arg Ala Ala Gln Leu Ser His 325 330
335 Tyr Gly Thr Val Asp Asp Phe Ile Ser Ala Leu Leu Thr Glu Thr Gly
340 345 350 Val Ala Ile Val Pro Gly Arg Ala Phe Gly Met Pro Asp His
Ala Arg 355 360 365 Ile Ser Tyr Cys Lys Asp Leu Ala Ser Leu Lys Glu
Ala Ala Arg Arg 370 375 380 Ile Arg Glu Phe Val Gly Lys 385 390 55
301 PRT Lactobacillus rhamnosus 55 Met Gln Arg Ala Glu Leu Ile Thr
Ala Ile Val Thr Pro Phe Asn Asp 1 5 10 15 Arg Asp Glu Ile Asp Tyr
Asp Ser Met Gln Arg Leu Val Asp His Leu 20 25 30 Ile Asp Gln Gly
Thr Asp Gly Phe Val Val Gly Ala Thr Thr Gly Glu 35 40 45 Gly Pro
Thr Leu Ser His Asp Glu Lys Ile Thr Leu Tyr Thr Arg Phe 50 55 60
Val Ala Met Val His Gly Arg Ala Leu Val Ile Ala Asn Ser Gly Ser 65
70 75 80 Asn Asn Thr Arg Glu Thr Thr Asp Phe Thr His Glu Val Gly
Gly Ile 85 90 95 Ala Gly Ile Asp Ala Thr Leu Val Val Val Pro Tyr
Tyr Asn Lys Pro 100 105 110 Asp Gln Asp Gly Met Ile
Ala His Tyr Thr Thr Val Ala Ala Ser Ala 115 120 125 Gln Lys Pro Ile
Ile Ile Tyr Asn Ile Pro Gly Arg Thr Gly Val Asn 130 135 140 Met Leu
Pro Glu Thr Val Ala Thr Leu Ala Gln Asn Pro Met Ile Gln 145 150 155
160 Gly Ile Lys Gln Cys Gly Ser Leu Ala Ala Leu Ser Asp Ile Ile Asp
165 170 175 Arg Thr Lys His Asp Ala Phe Asn Val Trp Thr Gly Glu Asp
Ala Gln 180 185 190 Ala Leu Thr Ile Lys Thr Leu Gly Gly Met Gly Val
Ile Ser Val Ala 195 200 205 Ser His Leu Tyr Ala His Ser Ile Arg Glu
Met Tyr Arg Ala Leu Asp 210 215 220 Arg Gly Asp Ile Thr Thr Val Ala
Ala Leu Gln Arg Gln Leu Leu Pro 225 230 235 240 Lys Met Ala Ala Leu
Phe His Phe Pro Ser Pro Ala Pro Thr Lys Ala 245 250 255 Ala Leu Asn
Ala Leu Gly Phe Lys Val Gly Ser Pro Arg Leu Pro Leu 260 265 270 Leu
Pro Leu Thr Ala Ala Gln Gln Gln Glu Leu Ala His Leu Leu Gly 275 280
285 Val Ser Glu Leu Ser Ala Ile Glu Ala Glu Val Leu Ala 290 295 300
56 255 PRT Lactobacillus rhamnosus 56 Met Ile His Val Leu Val Ala
Gly Phe Arg Gly Ala Met Gly Gln Lys 1 5 10 15 Thr Val Lys Met Val
Gln Ser Gln Lys Asp Phe Ala Leu Ser Ala Val 20 25 30 Phe Asp Pro
Lys Ala Thr Ala Ala Asp Ala Gln Lys Tyr Gly Leu Pro 35 40 45 Ala
Asp Thr Lys Val Leu Thr Ser Tyr Asp Gln Leu Asn Pro Asp Ile 50 55
60 Ala Asp Val Trp Val Asp Phe Thr Asn Pro Thr Ala Val Ala Ala Asn
65 70 75 80 Ile Glu Ala Ala Ile Lys Ala Gly Ile His Pro Val Val Gly
Thr Ser 85 90 95 Gly Met Thr Gln Ala Asp Gln Asn Arg Leu Ile Glu
Leu Ala Gln Ala 100 105 110 Arg His Ile Gly Gly Leu Ile Ala Pro Asn
Phe Gly Leu Ser Ala Val 115 120 125 Leu Leu Met Lys Phe Ala Gln Glu
Ala Ala Ala Tyr Phe Pro Asp Ala 130 135 140 Glu Ile Ile Glu Met His
His Gln Asp Lys Ala Asp Ala Pro Ser Gly 145 150 155 160 Thr Ala Ile
Ala Thr Ala His Lys Ile Ala Ala Gly Arg Thr Gln Lys 165 170 175 Pro
Leu Ser Thr Ile Asp Asn Asp Ala Arg Gly Gln Arg Ile Asp Asp 180 185
190 Val Pro Val His Ala Val Arg Leu Pro Gly Tyr Ile Ala His Glu Gln
195 200 205 Val Leu Phe Gly Gly Pro Gly Glu Ala Leu Thr Ile Arg Gln
Asp Ser 210 215 220 Phe Asp Arg Gln Ser Phe Met Gln Gly Val Ala Val
Ala Ile Arg Lys 225 230 235 240 Val Gln Ala Ala Asp His Leu Val Val
Gly Leu Glu Asn Phe Leu 245 250 255 57 334 PRT Lactobacillus
rhamnosus 57 Met Tyr His Ala Ala Ala Asp Arg Tyr Glu Lys Met Pro
Val Arg His 1 5 10 15 Ala Gly Lys Thr Gly Leu Met Leu Pro Val Ile
Ser Leu Gly Leu Trp 20 25 30 Gln His Tyr Gly Asn Leu Asp Pro Phe
Gly Pro Arg Arg Ser Val Ile 35 40 45 Leu Asp Ala Phe Asp Arg Gly
Val Phe His Phe Asp Val Ala Asn His 50 55 60 Tyr Gly Asn Gly Asp
Arg Glu Pro Gly Phe Gly Ser Ser Glu Arg Leu 65 70 75 80 Leu Gly Gln
Ile Leu Ala Thr Asp Leu Lys Pro Tyr Arg Asp Glu Leu 85 90 95 Val
Ile Ser Thr Lys Val Gly Tyr Glu Ile His Pro Gly Pro Tyr Gly 100 105
110 Val Gly Thr Ser Arg Lys Ala Val Ile Gln Gly Leu Asn Asp Ser Leu
115 120 125 Lys Arg Leu Gln Leu Asp Tyr Val Asp Ile Tyr Tyr Ala His
Arg Phe 130 135 140 Asp Asp Thr Val Ala Leu Glu Glu Thr Val Asn Ala
Leu Asp Gln Thr 145 150 155 160 Val Arg Asp Gly Lys Ala Leu Tyr Ile
Gly Ile Ser Asn Tyr Asp Thr 165 170 175 Lys Gln Thr Lys Glu Ala Ile
Ala Met Phe Lys Asp Leu His Thr Pro 180 185 190 Phe Val Leu Asn Gln
Tyr Ser Tyr Asn Met Phe Asn Arg Thr Ala Glu 195 200 205 Thr Ser Gly
Leu Ile Asp Ala Leu Lys Ala Asp Gly Ala Gly Leu Ile 210 215 220 Ala
Tyr Gly Pro Leu Ser Glu Gly Leu Leu Ser Asp Arg Tyr Leu Lys 225 230
235 240 Gly Ile Pro Asp Thr Phe Lys Ile His Pro Thr Asn Lys Ala Thr
Phe 245 250 255 Ala Lys Gly Lys Glu Ala Val Val Lys Gln Leu Asn Ala
Leu Asn Glu 260 265 270 Ile Ala His Asp Arg Asp Gln Thr Leu Ser Gln
Met Ala Leu Ala Trp 275 280 285 Leu Leu Arg Asp Pro Val Val Thr Ser
Val Ile Ile Gly Thr Thr Ser 290 295 300 Val Glu His Leu Gln Asp Asn
Leu Lys Ala Thr Glu His Leu Thr Phe 305 310 315 320 Thr Ala Glu Glu
Ile Gln Gln Ile Asp Asp Ile Leu Asn Ala 325 330 58 274 PRT
Lactobacillus rhamnosus 58 Met Ala Lys Met Trp Lys Arg Met Leu Leu
Pro Leu Val Leu Leu Leu 1 5 10 15 Leu Met Ile Pro Leu Ser Ser Cys
Gly Lys Ser Val Ala Asp Arg Asp 20 25 30 Ile Leu Ala Asn Ala Lys
Ala Thr Asn Thr Ile Ile Trp Gly Val Lys 35 40 45 Ala Asp Thr Arg
Leu Phe Gly Leu Met Asn Ile Lys Thr Gly Lys Ile 50 55 60 Glu Gly
Phe Asp Val Asp Met Ala Lys Ala Ile Thr Lys Gln Ile Leu 65 70 75 80
Gly Lys Lys Gly Asn Ala Gln Leu Val Gln Val Thr Ser Asp Thr Arg 85
90 95 Val Pro Met Ile Lys Gly Gly Asn Leu Asp Ala Val Ile Ala Thr
Met 100 105 110 Thr Ile Thr Pro Glu Arg Gln Lys Ile Leu Asp Phe Ser
Asp Val Tyr 115 120 125 Phe Asn Ala Gly Gln Ser Leu Leu Val Lys Lys
Gly Ser Pro Ile Lys 130 135 140 Ser Val Lys Asp Leu Lys Lys Gly Thr
Lys Val Ile Gly Val Gln Gly 145 150 155 160 Ser Asn Ser Val Asp Asn
Val Lys Lys Ala Ala Pro Asp Thr Thr Val 165 170 175 Leu Gln Leu Ala
Asp Tyr Ala Gln Ala Phe Thr Ala Leu Lys Ser Gly 180 185 190 Gln Gly
Asp Ala Leu Thr Thr Asp Asn Gly Ile Leu Tyr Gly Met Ser 195 200 205
Glu Gln Asp Lys Asn Tyr Ile Val Thr Gly Gly Thr Phe Thr Lys Glu 210
215 220 Pro Tyr Gly Ile Ala Ile Asn Lys Gly Gln Lys Pro Phe Val Asn
Ala 225 230 235 240 Val Asn Lys Ala Ile Lys Gln Leu Lys Gln Asn Gly
Thr Tyr Ala Lys 245 250 255 Leu Ile Lys Lys Trp Phe Gly Asp Val Pro
Gly Phe Ser Leu Lys Glu 260 265 270 Val Glu 59 390 PRT
Lactobacillus rhamnosus 59 Met Lys Leu Thr Ile Tyr Asp Phe Asp His
Val Ile Asp Arg Arg Gly 1 5 10 15 Thr Phe Ser Thr Gln Trp Asp Tyr
Ile Ala Asp Arg Phe Gly Arg Asn 20 25 30 Asp Ile Leu Pro Phe Ser
Ile Ser Asp Thr Asp Phe Pro Val Pro Val 35 40 45 Glu Val Gln Asp
Ala Leu Lys Glu Arg Leu Thr His Pro Ile Tyr Gly 50 55 60 Tyr Thr
Arg Trp Asn His Ala Thr Tyr Lys Asp Ser Ile Val His Trp 65 70 75 80
Phe Glu Arg Asp Gly His Thr Lys Ile Asn Pro Asp Trp Ile Val Tyr 85
90 95 Ser Pro Ser Val Val Phe Thr Ile Ala Thr Leu Ile Arg Met Lys
Ser 100 105 110 Asp Pro Gly Asp Gly Val Ala Val Phe Thr Pro Met Tyr
Asp Ala Phe 115 120 125 Tyr Gly Thr Ile Lys Gln Asn Asp Arg Val Leu
Ile Pro Ile Arg Leu 130 135 140 Ala Ala Ala Asp Glu Gly Tyr Val Ile
Asp Trp Asp Ser Leu Ala Thr 145 150 155 160 Val Leu Ala Glu Lys Gln
Thr Lys Ile Phe Leu Leu Thr Asn Pro His 165 170 175 Asn Pro Thr Gly
His Val Phe Thr Lys Ser Glu Leu Ala Arg Leu Tyr 180 185 190 Asp Leu
Cys Gln Ala Ala His Val Phe Leu Ile Ser Asp Asp Ile His 195 200 205
Arg Asp Ile Val Tyr Pro Gly His Ser Tyr Glu Pro Met Thr Asn Val 210
215 220 Gly Thr Ser Asp Val Ala Leu Cys Cys Ser Gly Ser Lys Thr Phe
Asn 225 230 235 240 Thr Pro Gly Leu Ile Gly Ser Tyr Ala Phe Leu Pro
Asp His Asp Val 245 250 255 Arg Ala Gln Phe Leu Thr Glu Leu Lys Gln
Lys Asn Ala Leu Ser Ser 260 265 270 Val Ser Ile Phe Gly Met Leu Ala
Gln Ile Ala Ala Tyr Asn Gly Ser 275 280 285 Glu Asp Tyr Val Glu Gln
Leu Thr Ala Tyr Thr Lys Asn Asn Met Glu 290 295 300 Leu Val Ala Ser
Tyr Leu Glu Glu Asn Leu Pro Glu Leu Gln Phe Ser 305 310 315 320 Leu
Pro Asp Ala Thr Tyr Leu Ala Trp Ile Asn Val Ser Lys Leu Arg 325 330
335 Leu Thr Ser Glu Glu Leu Gln His Arg Leu Val Asn Gly Gly His Val
340 345 350 Gly Ile Met Ala Gly Lys Thr Tyr Gly Asp Thr Arg Tyr Leu
Arg Met 355 360 365 Asn Ile Ala Cys Pro Lys Lys Lys Leu Val Met Gly
Leu Glu Arg Leu 370 375 380 Lys Lys Gly Ile Arg Gly 385 390 60 416
PRT Lactobacillus rhamnosus 60 Met Arg Thr Met Thr Thr Lys Ala Arg
Lys Gln Gly Ser Leu Met Glu 1 5 10 15 Asp Leu Pro Thr Asp Ile Ala
Thr Phe Val Asp Thr His Leu Val Asp 20 25 30 Arg His Asn Ser Asn
Ala Val Lys Trp Asp Gly Leu Lys Glu Glu Phe 35 40 45 Gly Arg Ala
Asp Leu Leu Pro Met Trp Ile Ala Asp Thr Glu Phe Lys 50 55 60 Ala
Pro Gln Ala Val Leu Asp Ala Leu Thr Val Arg Val Lys Glu Gly 65 70
75 80 Thr Phe Gly Tyr Ser Ile Arg Pro Gln Ser Tyr Tyr Glu Ala Phe
Ile 85 90 95 Asn Trp Gln Lys Glu Arg His Gly Ile Thr Val Glu Pro
Glu Trp Met 100 105 110 Arg Phe Gly Val Gly Val Val Lys Ser Leu Tyr
Ala Met Val Asn Trp 115 120 125 Leu Thr Glu Pro Gly Asp Pro Val Leu
Ile Met Gln Pro Val Tyr Tyr 130 135 140 Pro Phe Met Asn Ala Ile Asn
Asp Leu Gly Arg Lys Val Val Ser Val 145 150 155 160 Asp Leu Gln Leu
Thr Ala Asp Gly Trp Arg Met Asp Phe Asp Gln Leu 165 170 175 Glu Lys
Thr Leu Ala Ala Asn Glu Ile Lys Ala Met Ile Leu Cys Ser 180 185 190
Pro His Asn Pro Val Gly Arg Ile Trp Thr Arg Asp Glu Leu Glu Gln 195
200 205 Leu Phe Ala Ile Thr Ser Arg Tyr Asp Val Thr Val Val Ser Asp
Glu 210 215 220 Ile His Gly Asp Leu Glu Val Ser Gly Pro Lys Phe Thr
Ser Ala Leu 225 230 235 240 Gln Val Ala Glu Gly Lys Ala Arg Lys Lys
Leu Val Val Leu Asn Ala 245 250 255 Pro Ser Lys Thr Phe Asn Leu Ala
Ala Leu Leu Asn Ser His Ile Ile 260 265 270 Ile Pro Asp Gln Ala Leu
Arg Thr Ser Tyr Asp Ala Phe Ile Lys Gln 275 280 285 Leu His Pro Val
Asp Thr Ser Leu Met Gly Gln Val Ala Gly Glu Ala 290 295 300 Ala Tyr
Arg His Gly Ala Ala Trp Leu Asp Gln Val Leu Gln Val Val 305 310 315
320 Arg Tyr Asn Tyr Arg Gln Leu Gln Ala Gly Leu Ala Ala Ala Ala Pro
325 330 335 Gln Ala Thr Leu Ala Asp Leu Gln Gly Thr Tyr Leu Ala Tyr
Val Asp 340 345 350 Ile Gly Ala Tyr Val Ala Pro Ser Gln Ile Lys Asp
Phe Val Glu Gly 355 360 365 Val Cys Gly Leu Ala Val Asp Tyr Gly Ala
Trp Phe Ser Pro Gln Thr 370 375 380 Ala Thr Tyr Ile Arg Leu Asn Leu
Ala Thr Asp Pro Lys Leu Val Ala 385 390 395 400 Glu Ala Ile Asn Arg
Leu Thr Thr His Leu Ala Gln Gln Pro Gln Arg 405 410 415 61 332 PRT
Lactobacillus rhamnosus 61 Met Ser Val Lys Leu Thr Ala Gly Gln Leu
Glu His Leu Lys Gln Leu 1 5 10 15 Ser Asn Asp Asn Asn Val Ile Ser
Ala Leu Ala Ile Asp Gln Arg Gly 20 25 30 Ser Leu Lys Lys Met Leu
Ala Ala Ala Ala Asn Lys Pro Ala Asp Glu 35 40 45 Thr Thr Ile Val
Asp Phe Lys Lys Ala Val Ser Glu Glu Leu Thr Lys 50 55 60 Tyr Ala
Ser Ala Ile Leu Leu Asp Pro Glu Tyr Gly Leu Pro Ala Ala 65 70 75 80
Lys Val Arg Asp Pro Lys Ser Gly Leu Leu Leu Ser Tyr Glu Lys Thr 85
90 95 Gly Tyr Asp Ala Thr Glu Pro Gly Arg Phe Pro Asp Leu Ile Asp
Asn 100 105 110 Gln Ser Ala Leu Arg Ile Lys Asn Glu Gly Gly Asp Ala
Val Lys Phe 115 120 125 Leu Leu Tyr Ile Asp Pro Asp Glu Pro Asp Ser
Ile Asn Asp Arg Lys 130 135 140 Tyr Ala Phe Val Glu Arg Val Gly Ala
Glu Ala Lys Ala Asn Asp Leu 145 150 155 160 Pro Leu Phe Leu Glu Leu
Val Ser Tyr Asp Gly Lys Thr Asn Glu Thr 165 170 175 Gly Thr Ala Ala
Trp Ala Lys Ala Lys Pro Glu Lys Val Ile Lys Ile 180 185 190 Thr Lys
Glu Phe Ser Lys Ala Gln Tyr Asn Val Ser Val Leu Lys Leu 195 200 205
Glu Val Pro Val Asp Gln Lys Phe Val Glu Gly Tyr Thr Asp Glu Gly 210
215 220 Val Thr Pro Val Tyr Ser Lys Glu Glu Ala Ala Lys Tyr Tyr Lys
Ala 225 230 235 240 Gln Ser Asp Ala Thr Asp Leu Pro Phe Ile Phe Leu
Ser Ala Gly Val 245 250 255 Ser Asn Glu Leu Phe Leu Glu Glu Leu Lys
Phe Ala Lys Glu Ala Gly 260 265 270 Ser Thr Phe Asn Gly Val Leu Cys
Gly Arg Ala Thr Trp Lys Pro Gly 275 280 285 Val Lys Pro Phe Ala Ala
Glu Gly Glu Ala Ala Gly Lys Lys Trp Leu 290 295 300 Gln Thr Glu Gly
Lys Ala Asn Ile Asp Arg Leu Asn Lys Val Leu Ala 305 310 315 320 Asp
Thr Ala Thr Pro Trp Thr Asp Lys Val Glu Gly 325 330 62 434 PRT
Lactobacillus rhamnosus 62 Met Ser Ile Ile Thr Asp Val Leu Ala Arg
Glu Val Leu Asp Ser Arg 1 5 10 15 Gly Asn Pro Thr Val Glu Val Glu
Leu Tyr Thr Glu Asp Gly Gly Phe 20 25 30 Gly Arg Ala Leu Val Pro
Ser Gly Ala Ser Thr Gly Glu His Glu Ala 35 40 45 Val Glu Leu Arg
Asp Gly Asp Lys Asp Arg Phe Gly Gly Lys Gly Val 50 55 60 Leu Lys
Ala Val Asp His Val Asn Asn Glu Ile Ala Lys Ala Val Ile 65 70 75 80
Gly Leu Asp Val Thr Glu Gln Arg Leu Ile Asp Gln Thr Met Ile Asp 85
90 95 Leu Asp Gly Thr Pro Asn Lys Gly Lys Leu Gly Ala Asn Ala Ile
Leu 100 105 110 Gly Val Ser Leu Ala Ala Ala Arg Ala Ala Ala Asp Glu
Val Gly Leu 115 120 125 Pro Leu Tyr Gln Tyr Leu Gly Gly Pro Asn Ala
His Val Leu Pro Thr 130 135 140 Pro Met Met Asn Val Leu Asn Gly Gly
Ala His Ser Thr Asn Thr Val 145 150 155 160 Asp Phe Gln Glu Phe Met
Ile Met Pro Val Gly Ala Lys Ser Val Arg 165 170 175 Glu Ala Val Arg
Met Gly Ser Glu Thr Phe His Ala Leu Gln Ala Leu 180 185 190 Leu Lys
Ser Lys Gly Asp Ile Thr Ala Val Gly Asp Glu Gly Gly Phe 195 200 205
Ala Pro Asn Leu Lys Asp Asn Glu Glu Ala Phe Glu Leu Leu Val Glu 210
215 220 Ala Ile Lys Lys Ala Gly Tyr Lys Pro Gly Asp Asp Ile Ala Leu
Ala
225 230 235 240 Phe Asp Val Ala Ala Ser Glu Met Tyr Asp Ala Asp Thr
Lys Thr Tyr 245 250 255 Thr Thr Lys Trp Ser Asn Pro Asp Lys Lys Tyr
Thr Thr Glu Glu Trp 260 265 270 Thr Asn Met Ile Asp Gly Tyr Ile Asn
Lys Tyr Pro Ile Val Ser Val 275 280 285 Glu Asp Pro Ile Asp Glu Asn
Asp Trp Glu Gly Trp Gln Thr Phe Thr 290 295 300 Glu Lys Met Gly Asp
Lys Val Gln Ile Val Gly Asp Asp Leu Phe Val 305 310 315 320 Thr Asn
Thr Asp Tyr Leu Lys Lys Gly Ile Asp Met Gly Val Ala Asn 325 330 335
Ser Ile Leu Ile Lys Leu Asn Gln Ile Gly Thr Leu Thr Glu Thr Phe 340
345 350 Glu Ala Ile Glu Met Ala Lys Glu Ala Gly Tyr Thr Ala Val Val
Ser 355 360 365 His Arg Ser Gly Glu Thr Glu Asp Thr Thr Ile Ala Asp
Leu Val Val 370 375 380 Ala Thr Asn Ala Gly Glu Ile Lys Thr Gly Ser
Met Ser Arg Thr Asp 385 390 395 400 Arg Ile Ala Lys Tyr Asn Gln Leu
Met Arg Ile Glu Asp Gln Leu Gly 405 410 415 Ala Gln Ser Gln Tyr Lys
Gly Arg Lys Ser Phe Tyr Asn Val Lys Ala 420 425 430 Ile Asp 63 251
PRT Lactobacillus rhamnosus 63 Met Arg Thr Pro Phe Ile Ala Gly Asn
Trp Lys Met Asn Lys Asn Pro 1 5 10 15 Lys Glu Thr Gln Ala Phe Leu
Asp Ala Val Lys Gly Lys Leu Pro Asp 20 25 30 Ala Ser Lys Val Glu
Thr Val Ile Gly Ala Pro Ala Ile Asp Leu Thr 35 40 45 Thr Leu Val
Ala Gly Ala Glu Gly Thr Pro Leu Lys Thr Ala Ala Glu 50 55 60 Asn
Cys Tyr Phe Glu Asp Glu Gly Ala Phe Thr Gly Glu Thr Ser Pro 65 70
75 80 Lys Ala Leu Lys Glu Met Gly Val Asp Tyr Val Ile Ile Gly His
Ser 85 90 95 Glu Arg Arg Gly Tyr Phe His Glu Thr Asp Glu Asp Ile
Asn Lys Lys 100 105 110 Ala Lys Ala Ile Phe Lys Asn Asn Leu Leu Pro
Ile Ile Cys Cys Gly 115 120 125 Glu Ser Leu Ala Gln Arg Glu Ala Gly
Gln Thr Glu Asp Trp Val Ala 130 135 140 Ser Gln Ile Glu Ala Ala Leu
Ala Gly Leu Ser Ala Asp Gln Val Lys 145 150 155 160 Val Ser Val Leu
Ala Tyr Glu Pro Ile Trp Ala Ile Gly Thr Gly Lys 165 170 175 Thr Ala
Thr Ala Asp Gln Ala Gln Glu Val Val Ala His Ile Arg Ala 180 185 190
Thr Val Glu Lys Leu Tyr Asn Lys Asp Thr Ala Asp Ala Val Arg Ile 195
200 205 Leu Tyr Gly Gly Ser Val Lys Pro Ala Asn Val Lys Glu Leu Met
Ala 210 215 220 Lys Pro Asp Ile Asp Gly Gly Leu Val Gly Gly Ala Ser
Met Asp Pro 225 230 235 240 Asp Ser Phe Ile Ala Leu Ala Asn Tyr Gln
Asp 245 250 64 396 PRT Lactobacillus rhamnosus 64 Leu Ala Lys Leu
Ile Val Ser Asp Leu Asp Val Lys Asp Lys Lys Val 1 5 10 15 Leu Ile
Arg Val Asp Phe Asn Val Pro Ile Lys Asp Gly Val Ile Gly 20 25 30
Asp Asp Asn Arg Ile Val Ala Ala Leu Pro Thr Ile Gln Tyr Val Ile 35
40 45 Asp His Gly Gly Lys Ala Ile Leu Leu Ser His Leu Gly Arg Val
Lys 50 55 60 Thr Glu Glu Asp Lys Ala Lys Leu Thr Leu Lys Pro Val
Ala Glu Arg 65 70 75 80 Leu Ser Glu Leu Leu Lys Lys Pro Val Thr Phe
Val Pro Ala Thr Arg 85 90 95 Gly Lys Glu Leu Glu Asp Ala Ile Ala
Lys Leu Asn Asp Gly Asp Val 100 105 110 Leu Leu Met Glu Asn Thr Arg
Phe Glu Asp Leu Asp Gly Lys Lys Glu 115 120 125 Ser Gly Asn Asp Pro
Glu Leu Gly Lys Tyr Trp Ala Ser Leu Gly Asp 130 135 140 Leu Phe Val
Asn Asp Ala Phe Gly Thr Ala His Arg Lys His Ala Ser 145 150 155 160
Asn Val Gly Ile Ala Ser Asn Met Lys Gln Thr Ala Ala Gly Phe Leu 165
170 175 Met Glu Lys Glu Ile Lys Phe Leu Gly Asp Ala Val Asp Asn Pro
Lys 180 185 190 His Pro Phe Ile Ala Ile Leu Gly Gly Ala Lys Val Ser
Asp Lys Ile 195 200 205 Gly Val Ile Glu Asn Leu Val Pro Lys Ala Asp
Lys Ile Leu Ile Gly 210 215 220 Gly Gly Met Thr Tyr Thr Phe Tyr Ala
Ala Lys Gly Met Ser Ile Gly 225 230 235 240 Asn Ser Leu Val Glu Lys
Asp Lys Ile Asp Leu Ala Lys Lys Ile Met 245 250 255 Asp Gln Ala Gly
Asp Lys Leu Leu Leu Pro Val Asp Ser Val Val Ala 260 265 270 Pro Glu
Phe Ser Asn Asp Ala Pro His Lys Val Val Glu Gly Asp Ile 275 280 285
Pro Asp Gly Tyr Met Ala Leu Asp Ile Gly Pro Lys Thr Ile Gln Glu 290
295 300 Phe Lys Asp Ala Leu Lys Gly Ala Lys Thr Val Val Trp Asn Gly
Pro 305 310 315 320 Met Gly Val Phe Glu Met Ser Asn Tyr Ala Glu Gly
Thr Leu Glu Val 325 330 335 Gly Arg Ala Leu Gly Asp Leu Lys Asp Ala
Thr Thr Ile Ile Gly Gly 340 345 350 Gly Asp Ser Thr Ala Ala Ala Lys
Gln Leu Gly Ile Ala Pro Lys Ile 355 360 365 Thr His Ile Ser Thr Gly
Gly Gly Ala Ser Leu Glu Tyr Leu Glu Gly 370 375 380 Lys Thr Leu Pro
Gly Ile Ala Ala Ile Ser Asp Lys 385 390 395 65 340 PRT
Lactobacillus rhamnosus 65 Met Thr Val Lys Ile Gly Ile Asn Gly Phe
Gly Arg Ile Gly Arg Leu 1 5 10 15 Ala Phe Arg Arg Ile Tyr Glu Leu
Gly Ala Lys Ser Asn Asp Ile Gln 20 25 30 Val Val Ala Ile Asn Asp
Leu Thr Ser Pro Thr Met Leu Ala His Leu 35 40 45 Leu Lys Tyr Asp
Ser Thr His Gly Thr Phe Pro Gly Glu Val Ser Ala 50 55 60 Thr Asp
Asn Gly Ile Val Val Asp Gly Lys Glu Tyr Arg Val Tyr Ala 65 70 75 80
Glu Pro Gln Ala Gln Asn Ile Pro Trp Val Lys Asn Asp Gly Val Asp 85
90 95 Tyr Val Leu Glu Cys Thr Gly Phe Tyr Thr Ser Ala Glu Lys Ser
Gln 100 105 110 Ala His Leu Asp Ala Gly Ala Lys Arg Val Leu Ile Ser
Ala Pro Ala 115 120 125 Gly Lys Ile Lys Thr Ile Val Tyr Asn Val Asn
Asp Asp Thr Leu Asn 130 135 140 Ala Asp Asp Lys Ile Val Ser Ala Gly
Ser Cys Thr Thr Asn Cys Leu 145 150 155 160 Ala Pro Met Ala Tyr Phe
Leu Asn Gln Glu Phe Gly Ile Glu Val Gly 165 170 175 Thr Met Thr Thr
Val His Ala Tyr Thr Ser Thr Gln Met Leu Leu Asp 180 185 190 Gly Pro
Val Arg Gly Gly Asn Leu Arg Ala Ala Arg Ser Ala Ala Ala 195 200 205
Asn Thr Ile Pro His Ser Thr Gly Ala Ala Lys Ala Ile Gly Leu Val 210
215 220 Ile Pro Glu Leu Asn Gly Lys Leu Gln Gly His Ala Gln Arg Val
Ser 225 230 235 240 Val Val Asp Gly Ser Leu Thr Glu Leu Val Ser Ile
Leu Lys Thr Lys 245 250 255 Asn Val Thr Ala Asp Gln Val Asn Glu Ala
Ile Lys Lys His Thr Glu 260 265 270 Asn Asn Pro Ser Phe Gly Trp Asn
Glu Asp Glu Ile Val Ser Ser Asp 275 280 285 Val Ile Gly Thr Thr Tyr
Gly Ser Ile Phe Asp Pro Thr Gln Thr Glu 290 295 300 Val Thr Thr Ala
Gly Asp Tyr Gln Leu Val Lys Thr Val Ala Trp Tyr 305 310 315 320 Asp
Asn Glu Tyr Gly Phe Thr Cys Gln Met Ile Arg Thr Leu Leu Lys 325 330
335 Phe Ala Thr Leu 340 66 318 PRT Lactobacillus rhamnosus 66 Met
Ser Asn Leu Pro Lys Arg Tyr Asp Arg Ala Thr Leu Val Lys Ile 1 5 10
15 Ser Asp Leu Tyr Tyr Met His Gly Leu Thr Gln Gln Glu Ile Ser Asn
20 25 30 Ile Ala His Ile His Arg Thr Glu Ile Ser Arg Ile Leu Lys
Ala Ala 35 40 45 Arg Asp Glu Gly Val Val Ser Ile Ala Ile Asn Pro
Glu Thr Thr Ala 50 55 60 Val Ser Gln Leu Ile Asp Phe Phe Lys Gln
Lys Tyr Asn Leu Arg Glu 65 70 75 80 Ala Val Ile Val Pro Ala Ser Glu
Asn Gly Gly Asn Glu Leu Asn Ala 85 90 95 Leu Ser Val Tyr Ala Ser
Met Phe Leu Ser Arg Ile Ile Lys Ser Gly 100 105 110 Asp Val Ile Gly
Leu Ser Trp Gly Ser Thr Leu Ser Ser Val Ile Ser 115 120 125 Gln Phe
Pro Thr Asp Lys Gly Leu Arg Asp Ile Lys Val Val Pro Leu 130 135 140
Val Gly Gly Pro Met Gly Arg Ile Pro Ser Asn Tyr His Val Ser Tyr 145
150 155 160 Leu Thr His Arg Leu Ala Asn Arg Leu Asn Gly Thr Ala Phe
Val Leu 165 170 175 Asp Ser Pro Ala Phe Val Arg Ser Lys Ala Leu Arg
Lys Glu Leu Leu 180 185 190 Ala Asn Pro Asn Thr Gln Glu Ile Leu Gly
Leu Trp Asn Arg Val Asn 195 200 205 Ile Ala Ile Phe Gly Ile Gly Ser
Ser Leu Ile Thr Asp Ser Pro Asp 210 215 220 Trp Gln Ala Phe Tyr Glu
Asn Thr Asn Phe Lys Ser Tyr Phe Ser Ala 225 230 235 240 Asp Met Val
Gly Asp Ile Leu Ser His Pro Phe Asp Lys Asp Gly Lys 245 250 255 Leu
Ala Arg Asp Ile Asp Ser Ile Leu Val Ala Phe Pro Phe Ser Ala 260 265
270 Leu Arg Lys Val Pro His Ser Val Gly Ile Ala Phe Gly Glu Glu Lys
275 280 285 Val Asn Ala Ile Leu Ala Ala Leu Arg Gly Gly Leu Leu Asn
Thr Leu 290 295 300 Ile Thr Thr Glu Ala Thr Ala Lys Ala Ile Lys Glu
Leu Ser 305 310 315 67 282 PRT Lactobacillus rhamnosus 67 Met Pro
Glu Leu Pro Glu Val Glu Thr Val Arg Arg Ser Leu Leu Pro 1 5 10 15
Leu Val Lys Asn Lys Lys Ile Thr Ala Ile Ser Thr Asn Trp Glu Lys 20
25 30 Ile Leu Ile Asn Gly Leu Ala Thr Phe Gln Lys Gln Val Val Gly
Ala 35 40 45 Ala Val Asn Thr Ile Asp Arg Arg Gly Lys Tyr Leu Leu
Ile Arg Leu 50 55 60 Asn Asn Gly Met Thr Ile Val Ser His Leu Arg
Met Glu Gly Arg Tyr 65 70 75 80 Tyr Val Val Ser Asp Ala Lys Thr Pro
Leu Asp Lys His Asp His Val 85 90 95 Thr Phe Thr Phe Gln Asp Gly
Ser Gln Leu Arg Tyr Arg Asp Leu Arg 100 105 110 Lys Phe Gly Arg Met
Arg Leu Ile His Thr Gly Gln Glu Gln Leu Val 115 120 125 Pro Ala Leu
Ala Lys Leu Gly Pro Glu Pro Thr Ala Ala Thr Phe Ser 130 135 140 Glu
Ser Asp Phe Ala Gln Lys Leu Lys Arg His His Lys Ala Ile Lys 145 150
155 160 Ser Val Leu Leu Asp Gln Thr Val Val Ala Gly Ile Gly Asn Ile
Tyr 165 170 175 Ala Asp Glu Val Leu Trp Leu Ser Lys Leu Asn Pro Leu
Gln Pro Ala 180 185 190 Asn Thr Leu Thr Lys Ala Glu Val His Thr Leu
His Asp Ala Ile Ile 195 200 205 Lys Glu Leu Asp Asp Ala Ile Ala Ala
Gly Gly Thr Ser Ala His Thr 210 215 220 Tyr Val Asp Ala Lys Gly Asn
Arg Gly Ser Phe Gln Asp Ala Leu His 225 230 235 240 Val Tyr Asp Arg
Glu Gly Thr Pro Cys Asp Arg Cys Gly Thr Thr Ile 245 250 255 Val Lys
Ile Lys Val Gly Gln Arg Gly Thr His Tyr Cys Pro His Cys 260 265 270
Gln Pro Leu Arg Arg Arg Gly Gln Leu Ala 275 280 68 1741 PRT
Lactobacillus rhamnosus 68 Met Pro Ala Lys Thr Gln Gly Phe Asn Phe
Asp Trp Ser Leu Lys Gly 1 5 10 15 Gln Asp Gly Val Thr Tyr Thr Gly
His Tyr Ile Val His Leu Asp Asp 20 25 30 Pro Val Ile Arg Ala His
Asp Ile Ser Leu Phe Thr Gly Gln Val Trp 35 40 45 Lys Pro Glu Leu
Asn Phe Glu Asn Ala Ile Lys Ser Asp Gly Thr Glu 50 55 60 Val Pro
Leu Ser Glu Leu Thr Trp Ser Val Thr Asp Glu Lys Gly Asn 65 70 75 80
Val Val Ala Ser Lys Asp Lys Asn Gly Val Val Thr Gly His Val Asp 85
90 95 Asn Ser Gln Pro Thr Thr Tyr Val Val Thr Tyr Thr Tyr Gly Ala
Glu 100 105 110 Ser Gly Ser Ala Lys Ile Asn Tyr Lys Gln Arg Leu Ala
Ala Ser Tyr 115 120 125 Ala Leu Thr Gly Thr Gln Thr Val Thr Ala Thr
Gly Ser Pro Ile Thr 130 135 140 Val Asp Val Ser Gln Phe Ala Leu Ser
Leu Gly Asp Gly Phe Asp Ala 145 150 155 160 Gly Lys Leu Glu Leu Ser
Asp Leu Asn Phe Phe Asp Ala Asp Gly Lys 165 170 175 Pro Val Ala Ala
Asp Ala Leu Ile Lys Thr Gly Val Tyr Ser Val Glu 180 185 190 Leu Ser
Glu Ala Ala Trp Ala Arg Ile Ala Lys Leu Thr Asn Asp Glu 195 200 205
Gly Gln Ser Ala Ala Gly Tyr Asp Phe Thr Gly Thr Ser Thr Ala Gln 210
215 220 Leu Ile Ile Gly Leu Thr Ala Thr Gly His Leu Ser Asp Ser Gly
Phe 225 230 235 240 Val Tyr Asp Gly Lys Thr Thr Ala Ser Gln Ser Lys
Asp Leu Ala Val 245 250 255 Thr Val Thr Leu Ser Asp Gly Thr Gln Lys
Glu Met Asn Leu Thr Ser 260 265 270 Glu Asp Phe Ser Leu Val Glu Lys
Asp Ser Ala Asn Val Gly Thr Tyr 275 280 285 His Tyr Leu Leu Asn Ser
Val Gly Phe Ala Arg Leu Gln Ala Leu Leu 290 295 300 Gly Asp Thr Val
Thr Ile Asp Gln Thr Ala Ile Asn Gln Asn Ser Gly 305 310 315 320 Lys
Ile Thr Ile Thr Pro Ala Pro Ala Thr Val Asn Ser Asn Ser Thr 325 330
335 Asp Phe Glu Tyr Asp Gly Lys Thr Lys Ala Ser Glu Ala Lys Gly Ile
340 345 350 Gln Ala Thr Val Lys Leu Gly Glu Thr Gly Lys Thr Ile Asp
Leu Thr 355 360 365 Ser Ala Asp Ile Val Val Glu Asn Asp Gly Val Asp
Ala Gly Lys Tyr 370 375 380 Ser Tyr Glu Leu Ser Asp Ala Gly Lys Ala
Lys Leu Gln Ala Ala Thr 385 390 395 400 Gly Asn Asn Tyr Gln Leu Thr
Ala Asp Asp Leu Ala Lys Val Thr Gly 405 410 415 Ala Ile Thr Ile Thr
Pro Ala Thr Thr Ser Val Asp Ser Asn Asp Val 420 425 430 Ser Phe Glu
Tyr Asp Gly Lys Thr Lys Ala Ser Glu Ala Ala Gly Ile 435 440 445 Gln
Ala Thr Ile Lys Leu Asp Thr Gly Lys Val Val Asp Leu Thr Ala 450 455
460 Ala Asp Ile Ile Val Thr Asn Asp Asp Val Asn Ala Gly Gln Tyr Ser
465 470 475 480 Tyr Gln Leu Ser Asp Ala Gly Lys Ala Lys Leu Gln Ala
Ala Thr Gly 485 490 495 Asn Asn Tyr Gln Leu Thr Ala Asp Asp Leu Ala
Lys Val Ala Gly Thr 500 505 510 Ile Thr Ile Thr Pro Ala Val Thr Thr
Val Asp Ser Ser Asp Val Ser 515 520 525 Phe Glu Tyr Asp Gly Lys Thr
Lys Ala Ser Glu Ala Lys Gly Ile Gln 530 535 540 Ala Thr Ile Lys Leu
Asp Thr Gly Lys Val Val Asp Leu Thr Ala Ala 545 550 555 560 Asp Ile
Ile Val Thr Asn Asp Asp Val Asn Ala Gly Gln Tyr Ser Tyr 565 570 575
Gln Leu Ser Asp Ala Gly Lys Ala Lys Leu Gln Ala Ala Thr Gly Asn 580
585 590 Asn Tyr Gln Leu Thr Ala Asp Asp Leu Ala Lys Val Met Gly Thr
Ile 595 600 605 Thr Ile Thr Pro Ala Ala Val Thr Ala Asp Ser Asn Asp
Leu Ser Phe 610 615 620 Glu Tyr Asp Gly Lys Thr Lys Ala Ser Glu Ala
Lys Gly Ile Gln Ala
625 630 635 640 Met Val Lys Leu Gly Glu Thr Glu Lys Thr Val Asp Leu
Thr Ser Ala 645 650 655 Asp Ile Val Val Ala Asn Asp Asp Val Asn Ala
Gly Gln Tyr Ser Tyr 660 665 670 Gln Leu Ser Asp Ala Gly Lys Ala Lys
Leu Gln Ala Ala Thr Gly Asn 675 680 685 Asn Tyr Gln Leu Thr Ala Asp
Gly Leu Ala Lys Val Ala Gly Thr Ile 690 695 700 Thr Ile Thr Pro Ala
Thr Thr Thr Ala Asp Ser Asn Asp Val Ser Phe 705 710 715 720 Glu Tyr
Asp Gly Lys Thr Lys Ala Ser Glu Ala Lys Gly Ile Gln Ala 725 730 735
Thr Ile Lys Leu Gly Glu Ile Glu Lys Thr Val Asp Leu Ser Ser Ala 740
745 750 Asp Ile Ile Val Ala Asn Asp Gly Val Ile Val Gly Lys Tyr Thr
Tyr 755 760 765 Ser Leu Ser Asp Ser Gly Lys Ser Lys Leu Gln Ala Ala
Thr Gly Ser 770 775 780 Asn Tyr Gln Leu Thr Thr Glu Val Leu Asp Lys
Val Ser Gly Ser Ile 785 790 795 800 Thr Ile Thr Pro Ala Gly Ala Ile
Ala Thr Gly Lys Asp Ala His Phe 805 810 815 Glu Tyr Asp Gly Lys Thr
Lys Ala Ser Glu Ala Lys Gly Ile Gln Ala 820 825 830 Ile Leu Thr Ile
Asp Gly Thr Glu Lys Thr Val Asp Leu Thr Ala Ala 835 840 845 Asp Ile
Val Val Ala Glu Asp Gly Val Asp Ala Gly Lys Tyr Ser Tyr 850 855 860
Arg Leu Ser Asp Ala Gly Lys Ser Lys Leu Gln Arg Glu Ala Gly Ser 865
870 875 880 Asp His Gln Leu Thr Ala Asp Asp Leu Ala Glu Val Thr Gly
Thr Ile 885 890 895 Thr Ile Thr Pro Ala Ile Ala Thr Ala Asp Ser Asn
Asp Val Ser Phe 900 905 910 Glu Tyr Asn Gly Lys Thr Lys Ala Ser Glu
Ala Glu Gly Ile Gln Ala 915 920 925 Thr Val Met Leu Gly Glu Ser Gly
Gln Val Val Ala Leu Thr Ser Ala 930 935 940 Asp Val Val Val Val Asn
Asp Gly Val Asp Ala Gly Lys Tyr Ser Tyr 945 950 955 960 Gln Leu Ser
Asp Ala Gly Lys Ala Lys Leu Gln Ala Ala Thr Gly Asn 965 970 975 Asn
Tyr Gln Leu Thr Ala Asp Asp Leu Asp Lys Val Thr Gly Thr Ile 980 985
990 Thr Ile Thr Pro Ala Thr Thr Thr Val Asp Ser Asn Asp Val Ser Phe
995 1000 1005 Glu Tyr Asp Gly Lys Thr Lys Ala Gly Glu Ala Lys Gly
Ile Gln Val 1010 1015 1020 Thr Val Lys Leu Gly Glu Thr Glu Lys Thr
Val Asp Leu Thr Ser Ala 1025 1030 1035 1040 Asp Ile Val Val Ala Asn
Asp Asp Val Asn Ala Gly Gln Tyr Ser Tyr 1045 1050 1055 Gln Leu Ser
Asp Ala Gly Lys Ala Lys Leu Gln Ala Ala Thr Gly Asn 1060 1065 1070
Asn Tyr Gln Leu Thr Ala Asp Asp Leu Ala Lys Val Thr Gly Thr Ile
1075 1080 1085 Thr Ile Thr Pro Ala Val Thr Thr Ala Asp Ser Asn Asp
Val Ser Phe 1090 1095 1100 Glu Tyr Asp Gly Lys Thr Lys Ala Ser Glu
Ala Lys Gly Ile Gln Val 1105 1110 1115 1120 Ile Val Lys Leu Gly Glu
Thr Glu Lys Thr Val Asp Leu Thr Ser Ala 1125 1130 1135 Asp Ile Val
Val Ala Asn Asp Asp Val Asn Ala Gly His Tyr Ser Tyr 1140 1145 1150
Gln Leu Ser Asp Ala Gly Lys Ala Lys Leu Gln Ala Ala Thr Gly Asn
1155 1160 1165 Asn Tyr Gln Leu Thr Ala Asp Asp Leu Ala Lys Ile Thr
Gly Thr Ile 1170 1175 1180 Thr Ile Thr Pro Ala Val Ala Thr Ala Asp
Ser Asn Asn Val Ser Phe 1185 1190 1195 1200 Glu Tyr Asn Gly Lys Thr
Lys Ala Ser Glu Ala Arg Gly Ile Gln Ala 1205 1210 1215 Thr Val Lys
Leu Gly Glu Asn Gly Lys Thr Val Ala Leu Thr Ala Ala 1220 1225 1230
Asp Ile Val Val Val Asn Asp Gly Val Asn Ala Gly Gln Tyr Asp Tyr
1235 1240 1245 Lys Leu Ser Ala Ala Gly Met Thr Lys Leu Arg Gln Ala
Thr Gly Thr 1250 1255 1260 Asn Tyr Gln Phe Lys Lys Glu Asp Leu Thr
Lys Leu Gly Gly Thr Val 1265 1270 1275 1280 Thr Ile Thr Pro Ala Thr
Ala Leu Ala Asp Leu Asn Asp Val Ser Phe 1285 1290 1295 Ser Tyr Asp
Gly Gln Thr Lys Ala Ser Gln Ala His Asp Leu Thr Ala 1300 1305 1310
Asn Ile Lys Leu Gly Thr Lys Val Val Ser Val His Leu Asn Ala Thr
1315 1320 1325 Asp Ile Leu Val Thr Asp Asp Gly Val Gly Val Gly Gln
Tyr Gln Tyr 1330 1335 1340 Lys Leu Asp Ala Asn Gly Ile Ala Lys Leu
Arg Gln Ala Ser Gly Asp 1345 1350 1355 1360 Asn Tyr Gln Phe Asp Ala
Lys Val Leu Ala Gly Leu Thr Gly Thr Ile 1365 1370 1375 Thr Ile Lys
Pro Val Thr Gly Ala Val Thr Val Asn Asp Thr Ser Phe 1380 1385 1390
Val Tyr Asp Gly His Thr Lys Ala Ser Ala Ala Ala Gly Leu Gln Ala
1395 1400 1405 Ser Leu Tyr Leu Pro Gln Ala Glu Ala Lys Ala Thr Ile
Gln Leu Thr 1410 1415 1420 Arg Glu Asp Ile Leu Val Thr Asn Asp Gly
Thr Ala Ala Gly Thr Tyr 1425 1430 1435 1440 Arg Tyr Arg Leu Ser Gln
Thr Gly Ile Ala Lys Leu Gln Lys Ala Val 1445 1450 1455 Gly Lys Asn
Tyr Glu Leu Asp Gln Asp Glu Leu Ala Gly Leu Thr Gly 1460 1465 1470
Thr Ile Thr Ile Thr Pro Leu Thr Val Asn Ala Thr Val Asn His Gly
1475 1480 1485 Gln Phe Gln Tyr Asn Gly Val Thr Arg Ala Ser Gln Ala
Gly Gly Leu 1490 1495 1500 Ala Ile Thr Val Gln Leu Pro Glu Lys Ser
Gln Lys Ile Ala Leu Thr 1505 1510 1515 1520 Asn Thr Asp Ile Ala Val
Glu Asn Asp Ser Val Asn Val Gly Thr Tyr 1525 1530 1535 Thr Tyr His
Leu Thr Ala Ser Gly Leu Ala Lys Leu Ala Val Ala Ile 1540 1545 1550
Gly Pro Asn Tyr Gln Val Thr Asp Gln Thr Phe Ser Gly Thr Ile Thr
1555 1560 1565 Ile Thr Pro Ala Pro Ile Ser Ala Thr Leu Ser Gly Leu
Gln Lys Lys 1570 1575 1580 Thr Tyr Asp Gly Gln Pro Gly Ala Leu Asn
Asp Asp Tyr Tyr Arg Leu 1585 1590 1595 1600 Val Leu Gly Asp Gly Thr
Glu Ile Gln Leu Gln Ala Gly Asp Leu Ile 1605 1610 1615 Phe Val Asp
Gly Gln Ala Pro Val Asn Pro Gly Ser Tyr Ala Val Ala 1620 1625 1630
Leu Ser Thr Ser Gly Leu Gln Arg Ile Lys Ala Ser Leu Pro Asn Asn
1635 1640 1645 Leu Leu Lys Asn Val Asn Thr Gln Gln Ala Ile Phe Glu
Ile Val Ala 1650 1655 1660 Leu Pro Ser Pro Asp Pro Gly Thr Gly Thr
Thr Pro Asp Thr Pro Asp 1665 1670 1675 1680 His His Leu Pro Asn Thr
Gly Thr Gly Thr Gln Gln Ser Glu Ile Ser 1685 1690 1695 Thr His Asn
Gly Thr Lys His Arg Leu Pro Gln Thr Gly Asp Thr Gln 1700 1705 1710
Ser Gln Thr Leu Ser Leu Met Gly Leu Leu Leu Ala Thr Met Ser Gly
1715 1720 1725 Leu Phe Gly Leu Ala Gly Arg Lys Arg Lys Ala His Arg
1730 1735 1740 69 1463 PRT Lactobacillus rhamnosus 69 Val Arg Ala
Met Val Lys Pro Lys Gln Ala Gly Ala Asn Val Ala Thr 1 5 10 15 Thr
Thr Asn Ser Lys Ile Gly Gly Ser Gln Ser Ser Ala Lys Ala Ala 20 25
30 Ser Ala Phe Lys Ser Ser Ala Ser Val Glu Ser Ser Gly Gln Ile Lys
35 40 45 Ser Thr Ser Leu Ala Ser Ala Gly Ser Asn Gly Glu Lys Ala
Thr Ser 50 55 60 Ala Leu Ser Ser Ser Ala Val Asp Ala Ser Asp Gly
Arg Ala Ser Gln 65 70 75 80 Gly Val Gly Gly Thr Ser Ser Gly Ser Ser
Asp Thr Thr Ser Gln Ala 85 90 95 Asn Glu Gly Asn Ser Ala Ala Ser
Val Thr Ser Ala Ser Ala Asn Ser 100 105 110 Ala Ser Ala Thr Asn Thr
Ser Glu Gly Gln Thr Pro Val Asn Glu Ala 115 120 125 Val Ser Asn Asp
Ala Ser Ser Ala Asp Val Ser Thr Ala Ser Glu Phe 130 135 140 Asp Ala
Ala Met Ala Asp Ser Thr Val Ser Val Ile Asn Val Gln Ser 145 150 155
160 Asp Phe Val Met Asp Val Ser Gly Asp Arg Gln Ser Tyr Ala Tyr Arg
165 170 175 Pro Asn Leu Ile Ile Asn Gly Asn Asn His Thr Ile Asp Phe
Gln Lys 180 185 190 Lys Tyr Phe Glu Ala Asp Pro Thr Ser Ser Gln Asn
Glu Ser Phe Thr 195 200 205 Ile Asn Asp Leu Asn Met Tyr Gly Tyr Ser
Trp Trp Gly Pro Val Thr 210 215 220 Ile Lys Gly Ser Lys Pro Lys Asp
Gly Ile Asp His Ser Val Val Phe 225 230 235 240 Asn Asn Val Thr Tyr
Thr Gly Ala Gln Leu Met Tyr Gly Ile Tyr Thr 245 250 255 Lys Ala Phe
Ile Lys Gly Asn Thr Lys Ile Gln Ser Val Gly Ser Tyr 260 265 270 Val
Ser Pro Leu Asp Gly Ser Thr Gln Thr Thr Gln Gly Leu Gly Asn 275 280
285 Gln Gln Asn Phe Gln Ile Ser Tyr Leu Glu Val Leu Pro Gly Ala Thr
290 295 300 Tyr Thr Gly Thr Thr Thr Gly Gly Thr Asn Val Glu Val Tyr
Asp Gly 305 310 315 320 Gly Ser Phe Ile Val Asp Lys Gly Ala Thr Val
Asn Leu Gln Arg Thr 325 330 335 Asp Ala Ser Lys Ser Asn Glu Arg Gly
Thr Asn Ala Leu Ile Asp Thr 340 345 350 Gln Gly Gly Asn Val Glu Phe
Lys Asp Gly Ser Thr Val Ile Leu Asn 355 360 365 Lys Asn Ala Leu Val
Lys Asp Gly Phe Ala Pro Ile Tyr Ile Glu Asp 370 375 380 Gly Gly Asn
Leu Thr Val Asp Lys Asn Ala Thr Val Ser Ile Thr Gly 385 390 395 400
Ala Thr Gly Asn Ile Pro Val Arg Ile Asp Gly Thr Gly Thr Val Asn 405
410 415 Leu Asn Glu Gly Ser His Met Thr Ile Thr Gln Asn Gly Ala Pro
Lys 420 425 430 Leu Gly Tyr Gly Phe Ile Asn Ile Lys Gly Thr Gly Gly
Phe Phe Val 435 440 445 Ala Ser Gly Ser Thr Leu Asp Leu Asn Val Thr
Gly Thr Gly Thr Lys 450 455 460 Ser Val Asn Ala Ile Asn Val Ala Asn
Asp Gly Gln Leu Ser Phe Ala 465 470 475 480 Gln Asp Ala Thr Ala Asn
Leu Thr Ile Asp Gly Gly Thr Gly Glu Ala 485 490 495 His Leu Leu Lys
Val Gly Asp Asp Ala Asn Ile Asn Ile Tyr Met Pro 500 505 510 Lys Ser
Val Leu Phe Lys Ile Thr Asp Asn Asp Asp Ala Asp Ser Ser 515 520 525
Leu Phe Lys Val Ser Gly Thr Gly Thr Leu Thr Gly Gln Tyr Val Lys 530
535 540 Ile Ile Pro Asp Asp Gly Asn Ala Tyr Gly Pro Tyr Lys Ser Ala
Ile 545 550 555 560 Tyr Thr Leu Lys Gly Asn Gly Ser Ser Ser Asp Thr
Ala Thr Val Glu 565 570 575 Gly Glu Thr Ala Glu Asp Glu Gln Ser Gly
Lys Ala Leu Ala Asp Thr 580 585 590 Phe Ala Thr Asp Lys Ser Leu Glu
Phe Val Ser Ala Ser Asp Asn Phe 595 600 605 Ile Lys Val Asn Pro Val
Thr Asp Glu Thr Thr Thr Leu Thr Gly Lys 610 615 620 Thr Thr Ala Gly
Ala Tyr Val Thr Ile Ser Gly Leu Lys Gly Ile Pro 625 630 635 640 Glu
Gly Ser Leu Thr Ala Asn Ser Tyr Asp Ser Thr Lys Tyr Leu Val 645 650
655 Gln Ala Asp Lys Asp Gly Asn Trp Ser Tyr Glu Leu Pro Thr Gly Val
660 665 670 Ser Leu Pro Ala Asn Ala Ser Phe Glu Val Ile Ser Ser Ala
Gly Phe 675 680 685 Ile Val Lys Thr Ala Thr Val Val Ile Asn Asp Ala
Glu Thr Pro Lys 690 695 700 Gln Ala Ser Ser Ala Ala Gly Ser Leu Ile
Asn Ala Asn Ser Ala Ala 705 710 715 720 Asp Val Thr Ala Ser Gln Ala
Lys Ala Thr Ser Ala Ala Ala Ser Asp 725 730 735 Ala Ala Ser Tyr Ala
Ser Glu Ala Gln Ser Ile Ala Gly Ser His Ala 740 745 750 Asp Asn Met
Glu Ile Lys Ser Leu Ala Ser Asp Ala Glu Lys Gln Ser 755 760 765 Gln
Ile Ala Leu Ala Ala Ser Lys Ser Ala Ala Ala Ser Ser Ser Ala 770 775
780 Ala Ala Ser Ala Ala Ile Val Ala Ser Ser Ala Ala Ser Glu Ala Ser
785 790 795 800 Ser Ala Ala Ala Ala Val Ser Asn Ala Asp Ala Ser Ala
Asn Ser Ala 805 810 815 Ala Ala Ala Tyr Asp Ser Tyr Ala Ser Glu Ala
Ser Ala Ala Ser Ala 820 825 830 Ala Asn Asp Ser Ser Gly Tyr Ala Thr
Ala Ser Phe Ala Ala Ser Ser 835 840 845 Ala Ala Ala Ala Met Ser Ala
Ala Leu Ser Thr Ala Gln Val Ala Ala 850 855 860 Lys Val Ala Val Ser
Asp Ala Ala Ala Ala Gly Ser Ala Ala Ala Val 865 870 875 880 Ala Ser
Ala Ala Gln Ser Asp Ser Lys Asn Lys Gln Ala Thr Ala Ala 885 890 895
Thr Ala Arg Ser Gln Ala Leu Asp Asp Leu Asn Lys Ile Lys Ser Leu 900
905 910 Thr Asp Tyr Ala Ser Gly Ala Ser Ser Ser Ala Ser Glu Ala Gly
Gln 915 920 925 Ala Ser Thr Ala Thr Ser Ala Tyr Ala Ser Ala Ala Ser
Ser Ser Ala 930 935 940 Ser Glu Ala Gly Ser Tyr Ala His Gln Ala Gly
Ser Ser Ala Ser Asp 945 950 955 960 Ala Val Gly Gln Ser Gly Ser Ala
Ala Gln His Ala Ser Thr Ala Ala 965 970 975 Ser Ala Ala Ser Ser Tyr
Pro Lys Asp Ser Gly Ile Gln Ser Leu Ala 980 985 990 Ser Gln Ala Ala
Ser Glu Ala Ala Lys Ala Ser Ser Asn Ala Ser Ala 995 1000 1005 Ala
Thr Ser Ala Ala Ala Val Gly Phe Ser Ala Ala Ser Asp Ala Ser 1010
1015 1020 Glu Gln Ala Lys Thr Ala Ala Ser Ala Asp Val Val Ala Ser
Ser Ala 1025 1030 1035 1040 Ala Ser Thr Ala Asn Ser Asn Ala Ser Ala
Ala Ala Ser Ala Thr Lys 1045 1050 1055 Ala Gly Asp Ser Lys Ala Ala
Ala Gly Phe Ser Ser Ala Ala Ser Ala 1060 1065 1070 Ala Ala Ser Ser
Ala Lys Gly Ala Glu Ala Val Ala Ser Glu Ala Ala 1075 1080 1085 Ser
Ala Ala Ala Ser Asp Asp Ser Val Ala Ser Ser Ala Ala Ser Ala 1090
1095 1100 Ala Ala Gly Phe Asp Lys Ala Ala Ser Ala Ala Glu Gly Ala
Ala Ser 1105 1110 1115 1120 Ser Ala Ala Ser Ala Ala Ala Ser Ser Ala
Ala Ala Gln Gly Thr Arg 1125 1130 1135 Gly Gly Ala Ser Ser Ser Ala
Ser Glu Ala Gly Gln Ala Ser Thr Ala 1140 1145 1150 Thr Ser Val Tyr
Ala Ser Ala Ala Ser Ser Ser Ala Ser Glu Ala Gly 1155 1160 1165 Ser
Tyr Ala His Gln Ala Gly Ser Ser Ala Ser Glu Ala Thr Gly His 1170
1175 1180 Ala Ser Ser Ala Thr Ser Gln Ala Ser Ala Ala Ser Ser Ala
Ala Ser 1185 1190 1195 1200 Arg Tyr Pro Ser Asp Ser Gly Ile Gln Ser
Asp Val Ser Ile Ala Ser 1205 1210 1215 Ser Ala Ala Ser Thr Ala Ser
Ser Ala Ala Ser Ala Ala Gln Ser Glu 1220 1225 1230 Ala Ser Thr Ala
Ser Ser Ala Ala Ser His Ala Ser Glu Gln Ala Ser 1235 1240 1245 Ile
Ala Ser Ser Glu Asp Val Val Ser Ser Ser Ala Ala Ser Val Ala 1250
1255 1260 Ser Ser Ala Ala Ser Ala Ala Ser Ser Ala Ala Lys Ala Gly
Asn Ser 1265 1270 1275 1280 Ser Ala Ala Gly Ile Tyr Ser His Ala Ala
Ser Ala Ala Ala Ser Ser 1285 1290 1295 Ala Lys Ser Ala Glu Ser Gln
Ala Ser Ser Ala Ala Ser Ala Ala Ala 1300 1305 1310 Ser Asp Asp Ser
Val Ala Ser Ser
Ala Ala Ser Ala Ala Leu Ser Asp 1315 1320 1325 Asp Ala Lys Ala Ser
Ser Ala Ala Asp Val Ala Ser Ser Ala Thr Thr 1330 1335 1340 Ala Ala
Ile Ser Ser Ala Thr Ser Leu Ala Asp Gln Ser Ala Thr Gly 1345 1350
1355 1360 Ser Thr Ala Gly Ser His Ile Leu Pro Ser Thr Gly Gly Glu
Thr Thr 1365 1370 1375 Gly Ser Ile Pro Ser Gly Gln Thr Pro Thr Gln
Thr Lys Pro Thr Gln 1380 1385 1390 Thr Lys Pro Thr Gln Thr Lys Pro
Thr Gln Ala Gly Gln Thr Thr Gln 1395 1400 1405 Thr Gly Ser Leu Pro
Gln Thr Asp His Ala Gly Arg His Met Leu Pro 1410 1415 1420 Gln Thr
Gly Asp Asp Ala Glu Ser Gly Thr Ser Val Leu Gly Leu Leu 1425 1430
1435 1440 Ile Val Ser Leu Met Gly Leu Phe Gly Leu Ala Gly Thr Arg
His Gln 1445 1450 1455 Lys Asp Asn Lys Pro Ser Lys 1460 70 1879 PRT
Lactobacillus rhamnosus 70 Met Gln Ala His Lys Ile Met Pro Glu Asp
Trp Ile Ala Val Arg Met 1 5 10 15 Glu Thr Asn Arg Ile Glu Gly Lys
His Pro Ile His Pro Ala Phe Arg 20 25 30 Ser Thr Arg Ile Leu Glu
Tyr Asn Asp Phe Gly Pro Ala Leu Asn Ala 35 40 45 Lys Leu Leu Glu
Ala Met Lys Lys Lys Ala Ile Asp Asp Thr Ala Lys 50 55 60 Asp Pro
Lys Pro Val Gln Glu Glu Val Lys Glu Lys Val Asp Pro Ile 65 70 75 80
Thr Val Asp Glu Asp Phe Asp Lys Leu Ile Gln Glu Ile Val Leu Asn 85
90 95 Ala His Lys Glu Gln Ala Lys Arg Asp Ile Asp Ala Glu Ala Ala
Lys 100 105 110 Val Ser Ala Glu Ile Glu Gln Asp Pro Thr Leu Thr Ala
Thr Glu Lys 115 120 125 Ala Lys Gln Lys Asp Gly Val Ala Ala Glu Ala
Thr Lys Ala Lys Ala 130 135 140 Ala Ile Asp Gln Ala Gln Thr Glu Thr
Gly Val Gln Gln Ala Arg Asp 145 150 155 160 Ala Gly Ile Ala Ala Ile
Asp Ala Gln His Gln Pro Gly Thr Gly Leu 165 170 175 Asn Val Arg Arg
Glu Glu Ala Lys Gln Ala Ile Asp Ala Glu Ala Ala 180 185 190 Lys Val
Thr Ala Glu Ile Glu Gln Asp Ser Thr Leu Ala Thr Ser Glu 195 200 205
Lys Ala Ala Gln Lys Gln Gly Val Ala Asp Glu Ala Ala Lys Ala Lys 210
215 220 Thr Ala Ile Asp Gln Ala Gln Thr Ile Glu Ala Ile Asp Lys Ala
Lys 225 230 235 240 Asp Asp Gly Ile Lys Ala Ile Asp Ala Gln His Lys
Gln Gly Ala Asp 245 250 255 Phe Asp Thr Arg Lys Ala Gln Ala Lys Asp
Ala Ile Asp Ala Glu Ala 260 265 270 Ala Lys Val Lys Asp Ala Ile Asp
Gln Asp Pro Thr Leu Thr Ala Lys 275 280 285 Asp Lys Thr Ala Gln Lys
Gln Gly Val Gly Asp Glu Ala Thr Lys Ala 290 295 300 Lys Thr Ala Ile
Asp Gln Ala Lys Thr Ile Asp Gly Val Ile Gln Ala 305 310 315 320 Lys
Asp Asp Gly Ile Lys Ala Ile Asp Ala Gln His Gln Ala Gly Thr 325 330
335 Asp Leu Ala Thr Arg Lys Asp Ser Ala Lys Gln Ala Ile Asp Ala Glu
340 345 350 Ala Ala Lys Ile Thr Asp Ala Ile Asn Gln Asp Asp Thr Leu
Thr Ser 355 360 365 Thr Glu Lys Asp Ala Gln Lys Gln Ala Val Ala Asp
Glu Ala Ala Lys 370 375 380 Ala Lys Ala Ala Ile Asp Gln Ala Gln Asn
Ala Asp Ala Ile Leu Gln 385 390 395 400 Ala Gln Ala Asp Gly Ile Lys
Ala Ile Asp Ala Lys His Gln Ile Gly 405 410 415 Ala Asp Leu Asp Thr
Gln Lys Thr Lys Ala Lys Gln Ala Ile Asp Lys 420 425 430 Glu Ala Ala
Lys Val Leu Thr Ala Ile Glu Gln Asp Pro Thr Leu Thr 435 440 445 Ser
Ala Glu Lys Lys Ala Gln Lys Gln Gly Val Ala Asp Glu Thr Ala 450 455
460 Lys Ala Lys Thr Ala Ile Asp Ser Ala Arg Asn Ala Asp Glu Ile Ala
465 470 475 480 Lys Ala Gln Ala Asp Gly Ile Lys Ala Ile Asp Ala Gln
His Arg Leu 485 490 495 Gly Met Asp Leu Ala Lys Arg Lys Thr Asp Ala
Gln Ala Ala Ile Asp 500 505 510 Ala Glu Ala Ala Lys Val Gly Glu Ala
Ile Asp Gln Asp Pro Thr Leu 515 520 525 Thr Ser Gln Glu Lys Ala Ala
Gln Lys Gln Thr Phe Ala Ala Glu Ala 530 535 540 Thr Lys Ala Lys Asp
Thr Ile Ala Lys Ala Gln Asp Ala Asp Gly Val 545 550 555 560 Ile Gln
Ala Glu Lys Ala Gly Ile Gln Ala Ile Asp Asp Gly His Gln 565 570 575
Ser Gly Ala Leu Leu Asp Thr Arg Lys Val Asp Ala Lys Lys Ala Ile 580
585 590 Asp Ala Glu Ala Ala Lys Ile Asn Asp Ala Ile Asp Gln Asp Val
Thr 595 600 605 Leu Thr Ser Ala Glu Lys Ala Thr Gln Lys Gln Lys Val
Thr Asp Glu 610 615 620 Ala Val Lys Ala Lys Thr Ala Ile Asp Ala Ala
Lys Asn Ala Asp Thr 625 630 635 640 Val Asp Gln Ala Lys Ala Ser Gly
Ile Gln Ala Ile Asp Ala Val His 645 650 655 Gln Ser Gly Thr Leu Leu
Asp Thr Arg Lys Gln Asp Ala Lys Lys Ala 660 665 670 Ile Asp Ala Glu
Ala Val Lys Val Ile Ala Ala Ile Gly Gln Asp Val 675 680 685 Thr Leu
Thr Gln Ala Glu Lys Leu Thr Gln Gln Gln Ala Val Ala Asp 690 695 700
Ala Ala Thr Gln Ala Lys Ala Ala Ile Asp Ala Ala Lys Asn Ala Asp 705
710 715 720 Ala Val Asp Gln Ala Lys Ala Asp Gly Ile Lys Ala Ile Asp
Ala Gln 725 730 735 His Gln Ala Gly Leu Ala Leu Asn Glu Arg Lys Glu
Ala Ala Lys Lys 740 745 750 Leu Ile Ala Glu Thr Ala Asp Lys Val Gln
Ala Ala Ile Gly Gln Asp 755 760 765 Val Thr Leu Thr Ala Thr Gln Lys
Ala Val Gln Arg Gln Ala Ile Thr 770 775 780 Val Glu Val Thr Lys Ala
Asn Gln Ala Ile Asp Ala Ala Gly Asn Ala 785 790 795 800 Asp Ala Val
Asp Gln Ala Lys Asn Ala Gly Val Lys Ala Ile Tyr Asp 805 810 815 Gln
His Gln Ser Gly Gln Ala Leu Ala Asp Arg Lys Arg Asp Ala Lys 820 825
830 Gln Ala Ile Asp Ala Glu Ala Ala Lys Glu Thr Ala Ala Ile Asp Gln
835 840 845 Asp Ala Thr Leu Thr Ala Asn Glu Lys Ala Ser Gln Lys Gln
Ala Val 850 855 860 Ala Asp Glu Ala Thr Lys Ala Lys Glu Ala Ile Asp
Ala Ala Lys Gln 865 870 875 880 Ala Asp Ala Val Asp Gln Ala Lys Asn
Asp Gly Ile Arg Ala Ile Asp 885 890 895 Ala Gln His His Ala Gly Gln
Ala Val Ala Asp Arg Lys Ala Ala Ala 900 905 910 Lys Gln Ala Ile Asp
Ala Glu Ala Ala Lys Val Thr Gly Asn Ile Asp 915 920 925 Gln Asp Glu
Thr Leu Thr Ala Thr Glu Lys Ala Ala Gln Lys Gln Ala 930 935 940 Val
Ala Thr Glu Ala Asp Asn Ala Lys Gln Ala Ile Asp Lys Gly Gln 945 950
955 960 Asn Ala Asp Ala Val Asp Lys Ala Lys Thr Gly Gly Ile Lys Ala
Ile 965 970 975 Asp Ala Gln His Gln Ser Gly Gln Ala Ile Lys Ala Arg
Gln Asn Asp 980 985 990 Ala Lys Gln Ala Ile Asp Ala Glu Ala Ala Lys
Val Thr Lys Ala Ile 995 1000 1005 Asp Gln Asp Pro Thr Leu Thr Ala
Ala Glu Lys Lys Ala Gln Lys Gln 1010 1015 1020 Ala Val Thr Asp Ala
Glu Thr Lys Ala Lys Ala Ala Ile Asp Ala Thr 1025 1030 1035 1040 Leu
Val Ala Asp Ala Ile Asp Gln Ala Leu Ala Asp Gly Ile Lys Thr 1045
1050 1055 Ile Asp Ala Gln Tyr Gln Thr Gly Ile Ala Leu Asp Lys Gln
Lys Ala 1060 1065 1070 Ala Ala Lys Gln Thr Ile Asp Ala Glu Ala Ala
Lys Val Ser Glu Ala 1075 1080 1085 Ile Asp Gln Asp Val Thr Leu Thr
Ala Asp Gln Lys Ala Thr Gln Lys 1090 1095 1100 Gln Ala Val Ala Asp
Glu Ala Thr Lys Ala Lys Ala Ala Ile Asp Gln 1105 1110 1115 1120 Ala
Ser Asp Ala Asp Ala Val Ile Gln Ala Thr Ile Asp Gly Ile Glu 1125
1130 1135 Ala Ile Asp Ala Gln His Gln Ser Ala Thr Ala Leu Asp Lys
Gln Lys 1140 1145 1150 Gln Gln Ala Lys Gln Ala Ile Asp Ala Glu Ala
Ala Lys Val Ser Lys 1155 1160 1165 Ala Ile Asp Gln Asp Val Thr Leu
Thr Ala Thr Gln Lys Ala Asp Gln 1170 1175 1180 Lys Gln Ala Val Ile
Ala Glu Ala Asp Lys Ala Lys Lys Leu Ile Asp 1185 1190 1195 1200 Ala
Ala Gly Asn Ala Asp Gly Ile Lys Gln Ala Glu Ser Asp Gly Ile 1205
1210 1215 Lys Ala Ile Asp Ala Gln His Gln Ser Ser Gln Ala Leu Ala
Asp Arg 1220 1225 1230 Lys Arg Asp Ala Lys Thr Ala Ile Asp Ala Glu
Ala Ala Lys Glu Thr 1235 1240 1245 Ala Ala Ile Asp His Asp Ala Thr
Leu Thr Ala Asn Glu Lys Ala Ser 1250 1255 1260 Gln Lys Gln Ala Val
Thr Asp Glu Ala Thr Lys Ala Lys Lys Ala Ile 1265 1270 1275 1280 Asp
Ala Ala Lys Gln Ala Asp Ala Val Asp Gln Ala Lys Thr Asp Gly 1285
1290 1295 Ile Lys Ala Ile Asp Ala Gln His His Ser Gly Gln Ala Leu
Asp Asp 1300 1305 1310 Arg Lys Ala Asp Ala Lys Gln Val Ile Asp Ala
Glu Ala Ala Lys Val 1315 1320 1325 Thr Ala Ala Ile Asp Gln Asp Asn
Thr Leu Thr Lys Ala Gln Lys Ala 1330 1335 1340 Ala Gln Lys Gln Gly
Val Ala Thr Glu Ala Asp Lys Ala Lys Gln Ala 1345 1350 1355 1360 Ile
Asp Ala Ala Gly Asp Ala Asp Ala Val Asp Gln Ala Lys Thr Ala 1365
1370 1375 Gly Ile Gln Ala Ile Asp Ala Gln His Lys Ala Gly Lys Thr
Ile Asp 1380 1385 1390 Ser Arg His Asp Asp Ala Lys Gln Ala Ile Asp
Glu Glu Ala Ala Lys 1395 1400 1405 Val Ile Lys Ala Ile Asp Gln Asp
Pro Thr Leu Thr Ala Ala Gln Lys 1410 1415 1420 Glu Ala Gln Lys Gln
Ala Val Ala Thr Glu Ala Asp Lys Ala Lys Lys 1425 1430 1435 1440 Ala
Ile Asp Ala Ala Gly Asp Ala Asp Ala Val Asp Gln Ala Lys Thr 1445
1450 1455 Ala Gly Ile Lys Ala Ile Asp Glu Gln His Lys Ser Gly Gln
Thr Val 1460 1465 1470 Asp Ala Arg Lys Glu Asp Ala Lys Lys Ala Ile
Asp Ala Glu Ala Gly 1475 1480 1485 Lys Val Thr Asp Ala Ile Asp His
Asp Ala Thr Leu Thr Ala Ala Gln 1490 1495 1500 Lys Glu Ala Gln Lys
Gln Ala Val Ala Asp Glu Ala Asp Lys Ala Lys 1505 1510 1515 1520 Lys
Ala Ile Asp Ala Ala Gly Asn Ala Asp Ala Ile Asp Gln Ala Lys 1525
1530 1535 Ser Ala Gly Ile Lys Ala Ile Asp Glu Gln His Lys Ser Gly
Gln Ser 1540 1545 1550 Ile Asp Thr Arg Lys Asp Asp Ala Lys Lys Ala
Ile Asp Gly Glu Val 1555 1560 1565 Ala Lys Ile Thr Asp Ala Ile Asp
His Asp Pro Thr Leu Thr Asp Ala 1570 1575 1580 Glu Lys Ala Thr Gln
Lys Gln Ala Val Ile Ala Glu Ala Asp Lys Ala 1585 1590 1595 1600 Lys
Lys Ala Ile Asp Ala Ala Gly Asp Ala Asp Ala Val Asp Gln Ala 1605
1610 1615 Gln Lys Ala Gly Ile Lys Ala Ile Asp Gln Gln His Lys Ser
Gly Gln 1620 1625 1630 Ala Leu Ala Ile Arg Lys Asp Ala Ala Lys Lys
Ala Ile Asp Glu Glu 1635 1640 1645 Ala Ala Lys Val Ser Glu Ala Ile
Asp His Asp Val Thr Leu Thr Asp 1650 1655 1660 Ser Glu Lys Gly Thr
Gln Lys Gln Ala Val Ala Asp Glu Ala Lys Lys 1665 1670 1675 1680 Ala
Lys Gln Ala Ile Asp Thr Ala Asp Asn Ala Asp Gly Val Asp Gln 1685
1690 1695 Ala Val Thr Lys Gly Ile Gln Ile Ile Asp Ala Gln His Gln
Ser Gly 1700 1705 1710 Gln Ala Leu Thr Asp Arg Lys Ala Ala Ala Lys
Lys Ala Ile Asp Ala 1715 1720 1725 Glu Ala Ala Lys Val Gly Gln Ala
Ile Glu Gln Asp Pro Thr Leu Thr 1730 1735 1740 Ala Thr Glu Lys Lys
Arg Gln Lys Gln Ala Val Ala Asp Glu Ala Thr 1745 1750 1755 1760 Lys
Ala Lys Ala Ala Ile Asp Thr Ala Ala Asn Ala Ser Ala Val Asp 1765
1770 1775 Gln Ala Lys Asn Ala Gly Ile Lys Ala Ile Asp Ala Gln His
Val Ser 1780 1785 1790 Gly Lys Ala Phe Asp Leu Ser Lys Asp Glu Ala
Lys Lys Ala Ile Asp 1795 1800 1805 Ala Glu Ala Thr Lys Val Gln Gly
Glu Ile Asp Gln Asp Pro Thr Leu 1810 1815 1820 Thr Ala Thr Ala Lys
Lys Gln Gln Lys Glu Ala Val Pro Thr Glu Ala 1825 1830 1835 1840 Gly
Lys Ala Lys Gln Ala Phe Asp Gln Ala Lys Asn Ile Glu Glu Val 1845
1850 1855 Arg Pro Pro Lys Thr Lys Ala Ser Lys Arg Leu Met Arg Asn
Ile Ser 1860 1865 1870 Gln Asp Lys Gln Leu His Thr 1875 71 293 PRT
Lactobacillus rhamnosus 71 Met Pro Leu Val Asn Ala Ala Glu Leu Val
Lys Ala Ala His Lys Gly 1 5 10 15 His Tyr Cys Ile Gly Ala Phe Asn
Thr Asn Asn Leu Glu Trp Thr Arg 20 25 30 Ala Ile Leu Ala Gly Ala
Gln Glu Leu Asn Val Pro Val Ile Ile Gln 35 40 45 Thr Ser Met Gly
Ala Ala Lys Tyr Met Gly Gly Tyr Glu Phe Cys Gln 50 55 60 Thr Met
Ile Glu Ala Ala Val Lys Ala Met Asp Ile Thr Val Pro Val 65 70 75 80
Val Ile His Leu Asp His Gly Asn Tyr Glu Ala Ala Lys Glu Ala Ile 85
90 95 Ala Ala Gly Tyr Asn Ser Val Met Phe Asp Gly His Asp Leu Asp
Phe 100 105 110 Glu Asp Asn Leu Glu Lys Thr Lys Glu Ile Val Lys Leu
Ala His Ala 115 120 125 Lys Gly Ile Ser Val Glu Ala Glu Val Gly Ser
Ile Gly Gly Glu Glu 130 135 140 Asp Gly Val Val Gly Glu Gly Glu Leu
Ala Asp Val Glu Glu Ala Lys 145 150 155 160 Thr Leu Ala Ala Thr Gly
Ile Asp Phe Leu Ala Ala Gly Ile Gly Asn 165 170 175 Ile His Gly Gln
Tyr Pro Asp Asn Trp Lys Gly Leu His Phe Asp Arg 180 185 190 Leu Gln
Glu Leu Asn Asp Ala Val Lys Met Pro Leu Val Leu His Gly 195 200 205
Gly Ser Gly Ile Pro Gln Glu Gln Val Gln Lys Ala Ile Thr Met Gly 210
215 220 Ile Ser Lys Leu Asn Ile Asn Thr Glu Cys Gln Leu Ala Phe Ala
Lys 225 230 235 240 Ala Thr Arg Glu Tyr Ile Glu Ala Gly Lys Asp Gln
Gln Gly Lys Gly 245 250 255 Phe Asp Pro Arg Lys Met Leu Lys Pro Gly
Thr Asp Ala Ile Thr Asp 260 265 270 Thr Phe Lys Glu Ile Thr Gly Trp
Ile Gly Asn Lys Pro Val Lys Met 275 280 285 Val Pro Glu Ala Leu 290
72 174 PRT Lactobacillus rhamnosus 72 Met Ser Lys Val Ile Gly Ile
Asp Leu Gly Thr Thr Asn Ser Ala Val 1 5 10 15 Ala Val Leu Glu Gly
Asn Gln Pro Lys Ile Ile Thr Asn Pro Glu Gly 20 25 30 Asn Arg Thr
Thr Pro Ser Val Val Ala Phe Lys Asp Gly Glu Ile Gln 35 40 45 Val
Gly Glu Val Ala Lys Arg Gln Ala Ile Thr Asn Pro Asp Thr Ile 50 55
60 Val Ser Ile Lys Arg His Met Gly Glu Ala Asn Tyr Lys Val Lys Val
65 70 75 80 Gly Asp Lys Glu Tyr Thr Pro Gln Glu Ile Ser Ala Met Ile
Leu Gln 85 90 95 Tyr Ile Lys Lys Phe Ser Glu Asp Tyr Leu Gly
Glu Pro Val Lys Asp 100 105 110 Ala Val Ile Thr Val Pro Val Tyr Phe
Asn Asp Ser Glu Arg Gln Ala 115 120 125 Asn Lys Asp Ala Gly Lys Ile
Ala Gly Leu Asn Val Gln Arg Ile Ile 130 135 140 Asn Glu Pro Thr Ala
Ser Ala Leu Ala Tyr Gly Leu Asp Lys Gly Asp 145 150 155 160 Lys Glu
Lys Arg Phe Gly Leu Arg Leu Cys Arg Arg His Ile 165 170 73 282 PRT
Lactobacillus rhamnosus 73 Gln Val Ile Ala Asp Gly Val Val Thr Lys
Tyr Thr Pro Ala Asn Ala 1 5 10 15 Met Ile Val Ala Thr His Arg His
Thr Ala Lys Gln Leu Leu Ala Ala 20 25 30 Ala Gly Ile Pro Val Ala
Arg Gly Ala Lys Phe Thr Lys Trp Pro Asp 35 40 45 Ala Lys Ala Ala
Phe Glu His Ser Phe Ala His Lys Ser Ile Val Val 50 55 60 Lys Pro
Glu Ala Arg Ser Gln Gly Lys Ala Val Glu Gln Phe Ser Ile 65 70 75 80
Pro Pro Thr Glu Lys Gln Phe Asp Arg Ala Phe His Glu Ala Asn Arg 85
90 95 His His Gly Val Leu Ile Glu Met Met Ala Arg Gly Thr Thr Tyr
His 100 105 110 Phe Thr Ile Ile Gly Gln Gln Val Leu Ser Val Leu Glu
Thr Ala Ala 115 120 125 Ala Asn Val Val Gly Asp Gly Arg Lys Ala Ile
Lys Glu Leu Ile Ala 130 135 140 Leu Lys Asn Gly His Arg Ala Thr Ser
Arg Gln Leu Gln Leu Asp Ala 145 150 155 160 Ser Ala Arg Arg Gln Leu
Lys Ala Gln Ala Leu Thr Pro Glu Thr Val 165 170 175 Leu Gln Arg Gly
Gln Gln Val Phe Leu Thr Thr Ala Ala His Pro Gln 180 185 190 Thr Gly
Gly Asp Leu Tyr Asp Val Thr Asp Glu Ile Asp Asp Ser Tyr 195 200 205
Lys Gln Leu Ala Leu Lys Ala Ala Ala Thr Leu Asp Leu Pro Val Ala 210
215 220 Ala Val Asp Ile Val Ile Asp Asn Leu Tyr Ala Pro Tyr Asp Pro
Glu 225 230 235 240 Ala Asp Gly Gln Ala Ile Val Ile Ser Leu Asn Pro
Val Pro Asp Leu 245 250 255 Ala Val Pro Leu His Pro Asp Met Gly Glu
Ser Arg Ala Leu Ala Pro 260 265 270 Ala Leu Leu Asn Trp Leu Phe Ala
Val Arg 275 280 74 261 PRT Lactobacillus rhamnosus 74 Met Tyr Arg
Asp Leu Asn Gly Lys Val Ala Val Val Thr Gly Gly Ser 1 5 10 15 Lys
Gly Ile Gly Ala Gly Ile Ala Glu Arg Phe Gly Gln Glu His Met 20 25
30 Ala Val Val Ile Asn Tyr Leu Gly Asp His Glu Gly Ala Arg Lys Thr
35 40 45 Ala Asp Thr Val Ile Lys Asn Gly Gly Gln Ala Val Ser Ile
His Ala 50 55 60 Asp Val Ser Thr Glu Ala Gly Ile Ala Ser Leu Val
Lys Thr Ala Glu 65 70 75 80 Ser Glu Phe Gly Arg Leu Asp Val Trp Val
Asn Asn Ala Gly Met Glu 85 90 95 Ile Lys Ala Pro Thr His Glu Val
Ser Leu Asp Asp Trp Asn Lys Val 100 105 110 Ile Ala Ile Asn Gln Thr
Gly Val Phe Leu Gly Ala Arg Ala Ala Leu 115 120 125 Asn Tyr Phe Leu
Asp His His Gln Pro Gly Asn Ile Ile Asn Ile Ser 130 135 140 Ser Val
His Glu Gln Ile Pro Trp Pro Thr Phe Ala Ser Tyr Ala Ala 145 150 155
160 Ala Lys Gly Ser Val Lys Leu Phe Thr Glu Thr Ile Ala Met Glu Tyr
165 170 175 Ala Asn Arg Gly Ile Arg Val Asn Ala Ile Gly Pro Gly Ala
Ile Glu 180 185 190 Thr Pro Ile Asn Ala Glu Lys Phe Ala Asp Lys Ala
Gln Tyr Asp Gln 195 200 205 Thr Val Ala Met Ile Pro Gln Gly Arg Leu
Gly Lys Pro Glu Asp Val 210 215 220 Ala Ala Gly Ala Ala Trp Leu Ala
Ser Thr Glu Ser Ser Tyr Val Thr 225 230 235 240 Gly Thr Thr Leu Phe
Ile Asp Gly Gly Met Thr Leu Tyr Pro Ala Phe 245 250 255 Lys Asp Gly
Gln Gly 260 75 396 PRT Lactobacillus rhamnosus 75 Met Ala Lys Ile
Leu Ala Val Asn Ala Gly Ser Ser Thr Leu Lys Trp 1 5 10 15 Lys Leu
Phe Asp Met Pro Ala Glu Val Gln Leu Ala Glu Gly Leu Val 20 25 30
Asp Arg Leu Gly Gln Pro Gln Ser Lys Val Lys Ile Lys Tyr Gly Asp 35
40 45 Gly Gln Lys Tyr Glu Ser Asp Thr Pro Ile Ala Asn Tyr Gln Glu
Ala 50 55 60 Val Ala Ser Leu Met Gly Asn Ile Lys Ala Leu Gly Leu
Val Glu His 65 70 75 80 Leu His Glu Ile Ile Gly Val Gly His Arg Val
Val Ala Gly Gly Glu 85 90 95 Ile Phe Ala Glu Ser Val Val Val Asp
Asp Glu Thr Leu Leu Gln Ile 100 105 110 Gln Asn Leu Arg Asp Tyr Ala
Pro Leu His Asn Pro Val Glu Ala Asp 115 120 125 Tyr Ile Ser Val Phe
Arg Lys Met Met Pro Trp Ala Asn Glu Val Ala 130 135 140 Val Phe Asp
Thr Ala Phe His Gln Thr Met Gln Pro Glu Asn Phe Leu 145 150 155 160
Tyr Ser Ile Pro Tyr Glu Tyr Tyr Glu Gln Tyr Gly Ala Arg Lys Tyr 165
170 175 Gly Ala His Gly Thr Ser Val Arg Tyr Val Ser Ala Arg Ala Ala
Glu 180 185 190 Met Leu Gly Lys Pro Leu Glu Asp Leu Arg Met Ile Val
Met His Leu 195 200 205 Gly Ser Gly Ser Ser Ile Thr Ala Val Gln Gly
Gly Gln Ser Ile Asp 210 215 220 Thr Ser Met Gly Phe Thr Pro Leu Ala
Gly Val Thr Met Gly Thr Arg 225 230 235 240 Ser Gly Asp Ile Asp Pro
Ser Leu Val Gly Tyr Leu Met Lys Lys Leu 245 250 255 Ala Ile Pro Asp
Val Gly Gln Met Ile His Ile Leu Asn Asn Asp Ser 260 265 270 Gly Leu
Leu Gly Ile Ser Gly Leu Ser Asn Asp Met Arg Asp Leu Glu 275 280 285
Ala Ala Glu Asp Thr Asn Thr Arg Ala Lys Leu Ala Leu Asp Ile Phe 290
295 300 Val Asn Arg Val Val Lys Tyr Val Gly Ser Tyr Val Ala Leu Met
Asp 305 310 315 320 Gly Val Asp Val Leu Val Phe Thr Ala Gly Ile Gly
Glu Asn Gly Asp 325 330 335 Glu Ile Arg Asp Lys Ile Met Arg Ser Leu
Asp Tyr Leu Gly Ala Lys 340 345 350 Ile Asp Asn Asp Leu Asn Tyr Lys
Ser His Gly Val Glu Ala Asp Leu 355 360 365 Ser Thr Ala Asp Ser Thr
Val Lys Thr Leu Leu Val Pro Thr Asn Glu 370 375 380 Glu Leu Met Ile
Val Arg Asp Val Met Ala Leu Ser 385 390 395 76 11 PRT Lactobacillus
rhamnosus PEPTIDE (0)...(0) 76 Met Arg Thr Pro Phe Ile Ala Gly Asn
Leu Lys 1 5 10 77 10 PRT Lactobacillus rhamnosus PEPTIDE (0)...(0)
77 Pro Leu Val Asn Ala Ala Glu Leu Val Lys 1 5 10 78 11 PRT
Lactobacillus rhamnosus PEPTIDE (0)...(0) 78 Met Glu Lys Arg Glu
Phe Asn Ile Ala Ala Glu 1 5 10 79 12 PRT Lactobacillus rhamnosus
PEPTIDE (0)...(0) 79 Ser Lys Val Ile Gly Ile Asp Pro Gly Thr Gly
Asn 1 5 10 80 12 PRT Lactobacillus rhamnosus PEPTIDE (0)...(0) 80
Thr Val Lys Ile Gly Ile Asn Gly Phe Gly Arg Ile 1 5 10 81 13 PRT
Lactobacillus rhamnosus PEPTIDE (0)...(0) 81 Ser Val Lys Ile Thr
Ala Gly Gln Leu Glu His Leu Lys 1 5 10 82 12 PRT Lactobacillus
rhamnosus PEPTIDE (0)...(0) 82 Ala Lys Leu Ile Val Ser Asp Leu Asp
Val Lys Asp 1 5 10 83 12 PRT Lactobacillus rhamnosus PEPTIDE
(0)...(0) 83 Ser Ile Ile Thr Asp Val Leu Ala Arg Glu Val Leu 1 5
10
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