U.S. patent application number 11/222810 was filed with the patent office on 2006-04-27 for survival motor neuron (smn) gene: a gene for spinal muscular atrophy.
Invention is credited to Judith Melki, Arnold Munnich.
Application Number | 20060089490 11/222810 |
Document ID | / |
Family ID | 8218049 |
Filed Date | 2006-04-27 |
United States Patent
Application |
20060089490 |
Kind Code |
A1 |
Melki; Judith ; et
al. |
April 27, 2006 |
Survival motor neuron (SMN) gene: a Gene for spinal muscular
atrophy
Abstract
The present invention relates to the discovery of the human
survival motor-neuron gene or SMD gene, which is a chromosome 5-SMA
(Spinal Muscular Atrophy) determining gene. The present invention
further relates to the nucleotide sequence encoding the SMN gene
and corresponding amino acid sequence, a vector containing the gene
encoding the SMN protein or a DNA sequence corresponding to the
gene and transformant strains containing the SMN gene or a DNA
sequence corresponding to the gene.
Inventors: |
Melki; Judith; (Paris,
FR) ; Munnich; Arnold; (Paris, FR) |
Correspondence
Address: |
BIRCH STEWART KOLASCH & BIRCH
PO BOX 747
FALLS CHURCH
VA
22040-0747
US
|
Family ID: |
8218049 |
Appl. No.: |
11/222810 |
Filed: |
September 12, 2005 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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09109082 |
Jul 2, 1998 |
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11222810 |
Sep 12, 2005 |
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08545196 |
Oct 19, 1995 |
6080577 |
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09109082 |
Jul 2, 1998 |
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Current U.S.
Class: |
530/350 |
Current CPC
Class: |
Y02A 50/465 20180101;
Y02A 50/451 20180101; Y02A 50/30 20180101; C12Q 1/6883 20130101;
C07K 14/475 20130101; C07K 14/47 20130101; C12Q 2600/158 20130101;
G01N 33/6893 20130101; A01K 2217/05 20130101; A61K 38/00
20130101 |
Class at
Publication: |
530/350 |
International
Class: |
C07K 14/705 20060101
C07K014/705 |
Foreign Application Data
Date |
Code |
Application Number |
Oct 19, 1994 |
EP |
94402353.0 |
Claims
1. An isolated human survival motor neuron (SMN) protein.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to the discovery of the human
survival motor-neuron gene or SMN gene which is a chromosome 5-SMA
(Spinal Muscular Atrophy) determining gene. The present invention
further relates to the nucleotide sequence encoding the SMN gene
and corresponding amino acid sequence, a vector containing the gene
encoding the SMN protein or a DNA sequence corresponding to the
gene and transformant strains containing the SMN gene or a DNA
sequence corresponding to the gene.
[0003] More particularly, the present invention relates to means
and methods for detecting motor neuron diseases having symptoms of
muscular weakness with or without sensory changes such as
amytrophic lateral sclerosis (ALS), spinal muscular atrophy (SMA),
primary lateral sclerosis (PLS), arthrogryposis multiplex congenita
(AMC), and the like. The methods for detecting such motor neuron
diseases include, but are not limited to, the use of specific DNA
primers in the PCR technique, the use of hybridization probes and
the use of polyclonal and monoclonal antibodies.
[0004] Even more particularly, the present invention relates to the
use of the human SMN gene or part of the gene, cDNA,
oligonucleotide or the encoded protein or part thereof in therapy
by insertion of the human SMN gene or part of the gene, cDNA,
oligonucleotide or the encoded protein or part thereof, if
required, into engineered viruses or vectors that serve as harmless
carriers to transport the gene or part of the gene, cDNA,
oligonucleotide or the encoded protein or part thereof to the
body's cells including bone marrow cells.
[0005] The invention further relates to antigen sequences directed
to the SMN gene.
[0006] In order to provide means for the therapy of motor neuron
diseases, the invention also relates to the protein encoded by the
SMN gene.
[0007] The present invention also relates to the isolation of the
mouse SMN gene, the nucleotide sequence encoding the mouse SMN gene
and corresponding amino acid sequence. A transgenic mouse model
that hyperexpresses all or part of the SMN gene and a transgenic
mouse model produced by homologous recombination with a mutated SMN
gene is also described.
[0008] 2. State of the Art
[0009] Degenerative motor neuron diseases can be placed into three
major categories. Amyotrophic lateral sclerosis or ALS, motor
neuron diseases such as spinal muscular atrophy (SMA) and motor
neuron diseases associated with other degenerative disorders such
as primary lateral sclerosis (PLS).
[0010] Amyotrophic lateral sclerosis (ALS) is the most frequently
encountered form of progressive neuron disease and is
characteristically a disorder of middle age. The disease is
characterized by progressive loss of motor neurons, both in the
cerebral cortex and in the anterior horns of the spinal cord,
together with their homologues in some motor nuclei of the
brainstem. It typically affects both upper and lower motor neurons,
although variants may predominantly involve only particularly
subsets of motor neurons, particularly early in the course of
illness.
[0011] ALS is evidenced by the development of asymmetric weakness,
with fatigue and cramping of affected muscles. The weakness is
accompanied by visible wasting and atrophy of the muscles evolves
and over time, more and more muscles become involved until the
disorder takes on a symmetric distribution in all regions,
including muscles of chewing, swallowing and movement of the face
and tongue. Fifty percent of patients having ALS can be expected to
die within three to five years from the onset of the disease.
Presently, there is no treatment that has influence on the
pathologic process of ALS.
[0012] Spinal muscular atrophies (SMA) are characterized by
degeneration of anterior horn cells of the spinal cord leading to
progressive symmetrical limb and trunk paralysis associated with
muscular atrophy. SMA represents the second most common fatal,
autosomal recessive disorder after cystic fibrosis (1 out 6000
newborns). Childhood SMA is classically subdivided into three
clinical groups on the basis of age of onset and clinical course.
The acute form of Werdnig-Hoffmann disease (Type I) is
characterized by severe generalized muscle weakness and hypotonia
at birth or in the 3 months following birth. Death, from
respiratory failure, usually occurs within the first two years.
This disease may be distinguished from the intermediate (Type II)
and juvenile (Type III, Kugelberg-Welander disease) forms. Type II
children were able to sit but unable to stand or walk unaided, and
they live beyond 4 years. Type III patients had proximal muscle
weakness, starting after the age of two. The underlying biochemical
defect remains unknown. In addition there is known to exist a
slowly evolving adult form of SMA, sometimes referred to as SMA
IV.
[0013] Primary lateral sicerosis (PLS) is a variant of ALS and
occurs as a sporadic disease of late life. Neuropathologically in
PLS there is a degeneration of the corticospinal (pyramidal)
tracts, which appear almost normal at brainstem levels but become
increasingly atrophic as they descend through the spinal column.
The lower limbs are affected earliest and most severely.
[0014] Arthrogryposis Multiplex Congenita (AMC) is a frequent
syndrome characterized by congenital joint fixation (incidence of 1
out of 3000 live births) resulting from decreased fetal movements
in utero (Stern, W. G., JAMA, 81:1507-1510 (1923) ; Hall, J. G.,
Clin. Orthop., 194:44-53 (1985)). AMC has been ascribed to either
oligo-hydramnios or a variety of diseases involving the central
nervous system, skeletal muscle, or spinal cord. Since neuronal
degeneration and neuronophagia occur in the anterior horns, it has
been hypothesized that the AMC of neurogenic origin could be
related to acute spinal muscular atrophy; SMA Type I
Werdnig-Hoffman disease (Banker, B. Q., Hum. Pathol., (1986);
117:656-672).
[0015] The detection and clinical diagnosis for ALS, AMC, SMA and
PLS is quite limited to muscle biopsies, the clinical diagnosis by
a physician and electromyography (EMG). For example, the clinical
criteria for diagnosing SMA is set forth in the Clinical Criteria
International SMA Consortium (Munsat T. L., Neuromuscular
Disorders, Vol. 1, p. 81 (1991)). But due to the complications of
the various tests to detect motor neuron disorders, the clinician
usually attempts to eliminate various categories of other disease
states such as structural lesions, infections, intoxications,
metabolic disorders and heriditary biochemical disorders prior to
utilizing the above-described test methods.
[0016] Presently there is no treatment for any of the
above-mentioned motor neuron disorders. Basic rehabilitative
measures, including mechanical aids of various kinds, may help
patients that have these diseases overcome the effects of their
disabilities, but often confining respiratory support systems are
necessary to have the patient survive longer.
[0017] Accordingly, it is an object of the present invention to
characterize the SMA gene which is responsible for SMA disorders
and to clone the SMA gene into a vector, for example a plasmid, a
cosmid, a phage, a YAC vector, that can be used in the
transformation process to produce large quantities of the SMN gene
and SMN protein.
[0018] In yet another aspect of the invention is the use of primers
and hybridization probes to detect and diagnose patients having
motor neuron disorders such as AMC, ALS, SMA and PLS. Yet another
aspect of the present invention is the use of the SMN gene or part
thereof or cDNA, oligonucleotides, protein or part thereof in
therapy to correct disorders present in, for example AMC, SMA, ALS
and PLS patients, especially gene disorders.
[0019] In yet another aspect, the present invention provides
monoclonal and polyclonal antibodies for detection of SMN gene
defects in SMA patients.
[0020] Another object of the present invention provides the
characterization of the SMA gene in the mouse. A transgenic mouse
model is presented that hyperexpresses all or part of the SMN gene
or a transgenic mouse that by homologous recombination with a
mutated mouse SMN gene produces abnormalities in the SMN gene is
also described.
[0021] According to a further aspect of the invention, the therapy
of motor neuron diseases can involve the protein encoded by the SMN
gene.
[0022] These and other objects are achieved by the present
invention as evidenced by the summary of the invention, the
description of the preferred embodiments and the claims.
OBJECTS AND SUMMARY OF THE INVENTION
[0023] It is an object of the present invention to provide a novel
human Survival Motor Neuron gene or SMN gene, its DNA sequence and
amino acid sequence.
[0024] Another aspect of the present invention provides a novel
mouse Survival Motor Neuron gene or SMN gene, its DNA sequence and
amino acid sequence.
[0025] Yet another aspect of the present invention is the provision
of a vector which is capable of replicating in a host microorganism
to provide large quantities of the human or mouse SMN protein.
[0026] Yet another aspect of the present invention is the provision
of specific DNA sequences that can be used to detect and diagnose
spinal muscular atrophy and other motor neuron disorders. These DNA
sequences can be used as primers in the polymerase chain reaction
to amplify and detect the SMN gene sequence, a truncated or mutated
version of the SMN gene sequence or lack of said sequence which
leads to the diagnosis of SMA, AMC, and other motor neuron
disorders.
[0027] Yet another aspect of the present invention provides a
transgenic mouse that hyperexpresses all or part of the SMN gene or
a transgenic mouse that by homologous recombination with a mutated
mouse SMN gene produces abnormalities in the SMN gene is also
described.
[0028] The inventors have identified two genes respectively
designated T-BCD541 and C-BCD541, which are involved in motor
neuron disorders.
[0029] The T-BCD541 gene is responsible for the motor neuron
diseases of the SMA type, since its alteration either by partial or
total deletion, by mutation or any other modification, is
sufficient to lead to a pathological state at the clinical
electromyographic or muscle morphological levels.
[0030] The C-BCD541 gene is different from the T-BCD541 gene at the
level of the cDNA, since two nucleotides are modified. This
C-BCD541 gene is nevertheless not correctly processed during the
transcription in controls and patients suffering from motor neuron
diseases. The genomic DNA of the C-BCD541 gene is not correctly
spliced during the transcription providing thus for an abnormal
transcript. The difference between the splicing of the T-BCD541 and
the C-BCD541 gene results from differences in the sequence of the
introns of these genes.
[0031] The present invention thus further characterizes the
structure and organization of the human SMN gene which was found to
be approximately 20 kb in length and consists of 9 exons
interrupted by 8 introns. The nucleotide sequence, amino acid
sequence as well as the exon-intron boundaries of the human SMN
gene is set forth in FIG. 10. All exon-intron boundaries display
the consensus sequence found in other human genes. A
polyadenylation consensus site is localized about 550 bp downstream
from the stop codon (FIG. 10). The entire intron/exon structure of
the SMN gene permits the characterizations of the SMN gene
mutations in SMA disease or other motor neuron diseases.
[0032] The present invention also defines means for the detection
of genomic abnormalities relating to motor neuron diseases at the
level of the T-BCD541 gene or at the level of the C-BCD541
gene.
[0033] The genes of the invention can be further defined in that
each of them comprise intronic sequences corresponding to the
following sequences:
[0034] In the T-BCD541 gene
[0035] for intron n.degree. 6: TABLE-US-00001 5'
AATTTTTAAATTTTTTGTAGAGACAGGGTCTCATTATGTTGCCCAG
GGTGGTGTCAAGCTCCAGGTCTCAAGTGATCCCCCTACCTCCGCCTCCC
AAAGTTGTGGGATTGTAGGCATGAGCCACTGCAAGAAAACCTTAACTGC
AGCCTAATAATTGTTTTCTTTGGGATAACTTTTAAAGTACATTAAAAGA
CTATCAACTTAATTTCTGATCATATTTTGTTGAATAAAATAAGTAAAAT
GTCTTGTGAACAAAATGCTTTTTAACATCCATATAAAGCTATCTATATA
TAGCTATCTATGTCTATATAGCTATTTTTTTTAACTTCCTTTTATTTTC CTTACAG 3'
[0036] for intron n.degree. 7: TABLE-US-00002 5'
GTAAGTCTGCCAGCATTATGAAAGTGAATCTTACTTTTGTAAAACT
TTATGGTTTGTGGAAAACAAATGTTTTTGAACAGTTAAAAAGTTCAGAT
GTTAAAAAGTTGAAAGGTTAATGTAAAACAATCAATATTAAAGAATTTT
GATGCCAAAACTATTAGATAAAAGGTTAATCTACATCCCTACTAGAATT
CTCATACTTAACTGGTTGGTTATGTGGAAGAAACATACTTTCACAATAA
AGAGCTTTAGGATATGATGCCATTTTATATCACTAGTAGGCAGACCAGC
AGACTTTTTTTTATTGTGATATGGGATAACCTAGGCATACTGCACTGTA
CACTCTGACATATGAAGTGCTCTAGTCAAGTTTAACTGGTGTCCACAGA
GGACATGGTTTAACTGGAATTCGTCAAGCCTCTGGTTCTAATTTCTCAT TTGCAG 3'
[0037] In the C-BCD541 gene;
[0038] for intron n.degree. 6: TABLE-US-00003
AATTTTTAAATTTTTTGTAGAGACAGGGTCTCATTATGTTGCCCAGGGTG
GTGTCAAGCTCCAGGTCTCAAGTGATCCCCCTACCTCCGCCTCCCAAAGT
TGTGGGATTGTAGGCATGAGCCACTGCAAGAAAACCTTAACTGCAGCCTA
ATAATTGTTTTCTTTGGGATAACTTTTAAAGTACATTAAAAGACTATCAA
CTTAATTTCTGATCATATTTTGTTGAATAAAATAAGTAAAATGTCTTGTG
AACAAAATGCTTTTTAACATCCATATAAAGCTATCTATATATAGCTATCT
ATATCTATATAGCTATTTTTTTTAACTTCCTTTTATTTTCCTTACAG*
[0039] for intron n.degree. 7: TABLE-US-00004
*GTAAGTCTGCCAGCATTATGAAAGT
GAATCTTACTTTTGTAAAACTTTATGGTTTGTGGAAAACAAATGTTTTTG
AACAGTTAAAAAGTTCAGATGTTAGAAAGTTGAAAGGTTAATGTAAAACA
ATCAATATTAAAGAATTTTGATGCCAAAACTATTAGATAAAAGGTTAATC
TACATCCCTACTAGAATTCTCATACTTAACTGGTTGGTTGTGTGGAAGAA
ACATACTTTCACAATAAAGAGCTTTAGGATATGATGCCATTTTATATCAC
TAGTAGGCAGACCAGCAGACTTTTTTTTATTGTGATATGGGATAACCTAG
GCATACTGCACTGTACACTCTGACATATGAAGTGCTCTAGTCAAGTTTAA
CTGGTGTCCACAGAGGACATGGTTTAACTGGAATTCGTCAAGCCTCTGGT
TCTAATTTCTCATTTGCAG*
[0040] In a preferred embodiment of the invention, the gene of the
invention is capable of hybridizing in stringent conditions with
the sequence of FIG. 3 used as probe.
[0041] As hereabove written, the invention further relates to a
variant of the SMN gene, which variant is a C-BCD541 gene having a
cDNA sequence corresponding to the sequence of FIG. 2.
[0042] The invention also relates to cDNA sequences such as
obtained from one of the above genes. Such cDNA sequences are
disclosed in FIGS. 2 and 3. Both of these cDNA sequence are capable
of encoding a protein comprising the amino acid sequence described
on FIG. 1.
[0043] Despite this capacity to encode for such a protein, the
inventors have noted that the C-BCD541 gene is able to produce in
vivo this protein or is not able to produce it in a sufficient
quantity due to the abnormal splicing of the gene during the
transcription. Thus, the presence of the C-BCD541 gene does not
enable to correct in vivo the deficiency (deletion, mutation, . . .
) of the T-BCD541 gene responsible for the motor neuron diseases of
the SMA type or other motor neuron disorders.
[0044] In a particular embodiment, the invention relates also to a
nucleotide sequence comprising nucleotides 34 to 915 of the
sequence of FIG. 3, or to a sequence comprising nucleotides 34 to
915 of the sequence of FIG. 2.
[0045] These nucleotide sequences correspond to the coding sequence
of respectively the T-BCD541 gene and C-BCD541 gene.
[0046] The introns of the hereabove described genes are also
included in the application. Especially introns 6 and 7 have
respectively the following sequences:
[0047] For the T-BCD541 gene:
[0048] Intron 6: TABLE-US-00005 5'
AATTTTTAAATTTTTTGTAGAGACAGGGTCTCATTATGTTGCCCAG
GGTGGTGTCAAGCTCCAGGTCTCAAGTGATCCCCCTACCTCCGCCTCCC
AAAGTTGTGGGATTGTAGGCATGAGCCACTGCAAGAAAACCTTAACTGC
AGCCTAATAATTGTTTTCTTTGGGATAACTTTTAAAGTACATTAAAAGA
CTATCAACTTAATTTCTGATCATATTTTGTTGAATAAAATAAGTAAAAT
GTCTTGTGAACAAAATGCTTTTTAACATCCATATAAAGCTATCTATATA
TAGCTATCTATGTCTATATAGCTATTTTTTTTAACTTCCTTTTATTTTC CTTACAG 3'
[0049] Intron 7: TABLE-US-00006 5'
GTAAGTCTGCCAGCATTATGAAAGTGAATCTTACTTTTGTAAAACTT
TATGGTTTGTGGAAAACAAATGTTTTTGAACAGTTAAAAAGTTCAGATGT
TAAAAAGTTGAAAGGTTAATGTAAAACAATCAATATTAAAGAATTTTGAT
GCCAAAACTATTAGATAAAAGGTTAATCTACATCCCTACTAGAATTCTCA
TACTTAACTGGTTGGTTATGTGGAAGAAACATACTTTCACAATAAAGAGC
TTTAGGATATGATGCCATTTTATATCACTAGTAGGCAGACCAGCAGACTT
TTTTTTATTGTGATATGGGATAACCTAGGCATACTGCACTGTACACTCTG
ACATATGAAGTGCTCTAGTCAAGTTTAACTGGTGTCCACAGAGGACATGG
TTTAACTGGAATTCGTCAAGCCTCTGGTTCTAATTTCTCATTTGCAG 3'
[0050] For the C-BCD541 gene:
[0051] Intron 6: TABLE-US-00007
AATTTTTAAATTTTTTGTAGAGACAGGGTCTCATTATGTTGCCCAGGGTG
GTGTCAAGCTCCAGGTCTCAAGTGATCCCCCTACCTCCGCCTCCCAAAGT
TGTGGGATTGTAGGCATGAGCCACTGCAAGAAAACCTTAACTGCAGCCTA
ATAATTGTTTTCTTTGGGATAACTTTTAAAGTACATTAAAAGACTATCAA
CTTAATTTCTGATCATATTTTGTTGAATAAAATAAGTAAAATGTCTTGTG
AACAAAATGCTTTTTAACATCCATATAAAGCTATCTATATATAGCTATCT
ATATCTATATAGCTATTTTTTTTAACTTCCTTTTATTTTCCTTACAG*
[0052] Intron 7: TABLE-US-00008
GTAAGTCTGCCAGCATTATGAAAGTGAATCTTACTTTT
GTAAAACTTTATGGTTTGTGGAAAACAAATGTTTTTGAACAGTTAAAAAGTTCAGATGTTAGA
AAGTTGAAAGGTTAATGAAAACAATCAATATTAAAGAATTTTGATGCCAAAACTATTAGATA
AAAGGTTAATCTACATCCCTACTAGAATTCTCATACTTAACTGGTTGGTTGTGTGGAAGAAAC
ATACTTTCACAATAAAGAGCTTTAGGATATGATGCCATTTTATATCACTAGTAGGCAGACCAG
CAGACTTTTTTTTATTGTGATATGGGATAACCTAGGCATACTGCACTGTACACTCTGACATAT
GAAGTGCTCTAGTCAAGTTTAACTGGTGTCCACAGAGGACATGGTTTAACTGGAATTCGTCAA
GCCTCTGGTTCTAATTTCTCATTTGCAG*
[0053] The invention further encompasses a nucleotide sequence,
characterized in that it comprises at least around 9 nucleotides
and in that it is comprised within a sequence which has been
described above or in that it hybridizes with a sequence as
described above in hybridization conditions which are determined
after choosing the oligonucleotide.
[0054] For the determination of the hybridization conditions,
reference is made to the hybridization techniques for
oligonucleotides probes such as disclosed in Sambrook et al.
Molecular Cloning a Laboratory Manual 2nd edition, 1989.
[0055] The sequences of the invention are either DNA (especially
genomic DNA or cDNA or synthetic DNA) or RNA. They can be used as
probes for the detection of the T-BCD541 or C-BCD541 genes or as
primers for the amplification of genomic DNA present in a
biological sample.
[0056] Preferred primers are those comprising or relating to the
following sequences: TABLE-US-00009 a) 5' AGACTATCAACTTAATTTCTGATCA
3' (R 111) b) 5' TAAGGAATGTGAGCACCTTCCTTC 3' (541C770)
[0057] The above primers are characteristic of exon 7 of the
T-BCD541 gene. TABLE-US-00010 (c) GTAATAACCAAATGCAATGTGAA (541C960)
(d) CTACAACACCCTTCTCACAG (541C1120)
[0058] The above primers are characteristic of exon 8 of the
T-BCD541 gene.
[0059] The primers used by pairs can form sets for the
amplification of genomic DNA in order to detect motor neuron
diseases.
[0060] Inverted complementary sequences with respect to the above
primers can also be used.
[0061] Preferred sets of primers are the following:
[0062] a pair of primers contained in the sequence comprising
nucleotides 921 to 1469 of the sequence of FIG. 3 and/or
[0063] a pair of primers comprising the following sequences:
TABLE-US-00011 5' AGACTATCAACTTAATTTCTGATCA 3 5'
TAAGGAATGTGAGCACCTTCCTTC 3'
[0064] Another preferred set of primers comprises:
[0065] a pair of primers having the following sequences:
TABLE-US-00012 5' AGACTATCAACTTAATTTCTGATCA 3' 5'
TAAGGAATGTGAGCACCTTCCTTC 3'
[0066] a pair of primers having the following sequences:
TABLE-US-00013 5' GTAATAACCAAATGCAATGTGAA 3' and/or 5'
CTACAACACCCTTCTCACAG 3'
[0067] From a general point of view for the detection of divergence
in exon 7. between the T-BCD541 and C-BCD541 genes oligonucleotide
primers can be selected in the fragment 5' from the divergence and
within exon 7 or intron 7.
[0068] Other primers that can be used for SSCP analysis for
diagnostic purposes are selected from amongst the following:
TABLE-US-00014 5'EXON 1 121md/121me Size:170 bp 121MD 5' AGG GCG
AGG CTC TGT CTC A 121ME 5' CGG GAG GAC CGC TTG TAG T EXON1
121ma/121mf Size:180 bp 121MA 5' GCC GGA AGT CGT CAC TCT T 121MF 5'
GGG TGC TGA GAG CGC TAA TA EXON2A ex2A5/EX2A3 Size:242 bp EX2A5 5'
TGT GTG GAT TAA GAT GAC TC EX2A3 5' CAC TTT ATC GTA TGT TAT C
EXON2B Ex2B5/EX23 Size:215 bp EX2B5 5' CTG TGC ACC ACC CTG TAA CAT
G EX23 5' AAG GAC TAA TGA GAC ATC C EXON3 SM8C/161CR2 Size:238 bp
SM8C 5' CGA GAT GAT AGT TTG CCC TC 161CR2 5' AG CTA CTT CAC AGA TTG
GGG AAA G SM8D/C260 Size:150 bp SM8D 5' CTC ATC TAG TCT CTG CTT CC
541C260 5' TGG ATA TGG AAA TAG AGA GGG AGC EXON4 SM3CA/C460
Sizo:150 bp SM3CA 5' CAC CCT TAT AAC AAA AAC CTG C 541C460 5' GAG
AAA GGA GTT CCA TGG AGC AG SM3CB/C380 Size:180 bp SM3CB 5' GAG AGG
TTA AAT GTC CCG AC 541C380 5' GTG AGA ACT CCA GGT CTC CTG G EXON5
EX55/C590 Size:254 bp EX55 5' TGA GTC TGT TTG ACT TCA GG 541C590 5'
GAA GGA AAT GGA GGC AGC CAG C EX53/C550 Size:168 bp EX53 5' TTT CTA
CCC ATT AGA ATC TGG 541C550 5' CCC CAC TTA CTA TCA TGC TGG CTG
EXON6 164C25/C849 Size:143 bp 164C25 5' CCA GAC TTT ACT TTT TGT TTA
CTG 541C849 5' ATA GCC ACT CAT GTA CCA TGA EX63/C618 Size:248 bp
EX63 5' AAG AGT AAT TTA AGC CTC AGA CAG 541C618 5' CTC CCA TAT GTC
CAG ATT CTC TTG 3' EXON7 R111/C770 Size:200 bp R111 5' AGA CTA TCA
ACT TAA TTT CTG ATC A 541C770 5' TAA GGA ATG TGA GCA CCT TCC TTC
R111/C261 Size:244 bp R111 5' AGA CTA TCA ACT TAA TTT CTG ATC A
164C261 5' GTA AGA TTC ACT TTC ATA ATG CTG INTRON7 164C45/164C265
Size:220 bp 164c45 5' CTT TAT GGT TTG TGG AAA ACA 3' 164c265 5' GGC
ATC ATA TCC TAA AGC TC EXON8 c960/C1120 Size:186 bp 541c960 5'GTA
ATA ACC AAA TGC AAT GTG AA 543C1120 5'CTA CAA CAC CCT TCT CAC AG
164C140/C920 164C140 5' GGT GTC CAC AGA GGA CAT GG 541C920 5' AAG
AGT TAA CCC ATT CCA GCT TCC
[0069] The invention also concerns antisense DNA or RNA, capable of
hybridizing with the C-BCD541 gene and particularly to the intron
sequences, especially with the fragment of the introns which differ
from the corresponding part in the T-BCD541 gene.
[0070] The invention also relates to a protein comprising the amino
acid sequence of FIG. 1, or to a protein having the amino acid
sequence of FIG. 8.
[0071] The protein relating to the sequence of FIG. 1 can be used
in a composition for the treatment of motor neuron diseases, via
oral, intra-muscular, intravenous administration, or via
administration in the spinal cord fluid.
[0072] The invention further provides a kit for the in vitro
diagnosis of motor neuron diseases, comprising:
[0073] a set of primers as described above;
[0074] reagents for an amplification reaction and
[0075] a probe for the detection of the amplified product.
[0076] According to another embodiment of the invention, a kit for
the detection of the motor neuron diseases containing a
hybridization probe as described above is provided.
[0077] Oligonucleotide probes corresponding to the divergences
between the genes can be used.
[0078] The diagnosis can be especially directed to SMA motor neuron
pathology.
[0079] The invention also concerns cloning or expression vectors
comprising a nucleotide sequence as defined above. Such vectors can
be, for example, plasmids, cosmids, phages, YAC, pYAC, and the
like. Preferably, such a vector has a motor neuron tropism.
Especially for the purpose of defining means for gene therapy, it
can be chosen among poliovirus vector, herpes virus, adenovirus,
retrovirus vectors, synthetic vectors and the like.
[0080] Within the scope of the invention are contemplated further
recombinant sequences. The invention also concerns recombinant host
cells, i.e., yeasts, CHO cells, baculovirus, bone marrow cells, E.
coli, fibroblasts-epithelial cells, transformed by the above
recombinant sequences.
[0081] The invention also relates to a method for detecting motor
neuron disorders including spinal muscular atrophy, amyo trophoc
lateral sclerosis and primary lateral sclerosis, said method
comprising the steps of:
[0082] (a) extracting DNA from a patient sample;
[0083] (b) amplifying said DNA with primers as described above;
[0084] (c) subjecting said amplified DNA to SCCP;
[0085] (d) autoradiographing the gels; and
[0086] (e) detecting the presence or absence of the motor neuron
disorder.
[0087] Steps (c) and (d) can be replaced by a step of digestion
with BsrI enzyme or with any other enzyme capable of recognizing
specifically the divergence of the genes or mismatches in genes, or
by sequencing.
[0088] The invention also relates to a method for detecting spinal
muscular atrophy, said method comprising the steps of:
[0089] (a) extracting DNA from a patient sample;
[0090] (b) hybridizing said DNA with a DNA probe comprising all or
part of the cDNA sequence of FIG. 3 or of FIG. 2 under stringent
conditions; and
[0091] (c) detecting the hybrids possibly formed.
[0092] The invention also relates to a method for detecting
arthrogryposis multiplex congenital said method comprising the
steps of:
[0093] (a) extracting DNA from a patient sample;
[0094] (b) amplifying said DNA via PCR using unlabeled primers from
exon 7 and exon 8 of the SMN gene;
[0095] (c) subjecting said amplified DNA to SCCP;
[0096] (d) autoradiographing the gels; and
[0097] (e) detecting the presence or absence of arthrogryposis
multiplex congenita.
[0098] Yet another method to detect arthrogryposis multiplex
congenita concerns dinucleotide Repeat Polymorphism Analysis using
genotyping markers C272 and C212 after PCR amplification.
[0099] The present invention further concerns polyclonal antiserum
or monoclonal antibodies directed to the protein of FIG. 1, the
protein of FIG. 8 or the protein of FIG. 12.
[0100] Yet another aspect of the present invention is directed to
the use of the entire or partial nucleotide sequence of SMN as a
probe to detect SMA as well as to indetify and clone genes related
to SMN gene motor neuron in animals or organisms.
[0101] Yet another aspect of the present invention is the use of
the SMA protein to produce polyclonal and monoclonal antibodies,
which antibodies may be used to detect and diagnose SMA.
[0102] In another aspect, polyclonal rabbit antiserum were
generated against synthetic peptides corresponding to the amino
acid sequence of FIGS. 1, 8 and 12, including the amino acid
terminus and the carboxy terminus.
[0103] Accordingly, in one of its process aspects, the present
invention relates to the detection of SMA in patients having SMA or
related motor neuron disorders such as AMC, ALS and PLS.
[0104] Yet another aspect of the present invention is to administer
the SMN gene part thereof, cDNA or oligonucleotides to patients who
are either lacking the gene or have a genetically defective gene as
such or after incorporation into engineered viruses or vectors.
[0105] These and other aspects of the present invention will be
discussed in detail below in the preferred embodiments of the
present invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0106] FIG. 1 is the amino acid sequence of the SMN coding region
of the clone T-BCD541.
[0107] FIG. 2 is the nucleotide sequence of the SMN coding region
as well as the 5' and 3' flanking regions of clone C-BCD541; the
coding region is underlined.
[0108] FIG. 2B contains the sequence starting from intron 6 up to
exon 8 of the C-BCD541 gene. The underlined sequences are those of
exons 7 and 8. Sequences of introns 6 and 7 can be chosen as
oligonucleotides to amplify the cDNA region allowing the
distinction, within exon 7, between the T-BCD541 gene and the
C-BCD541 gene. The position of the divergent nucleotides between
the T-BCD541 and C-BCD541 cDNA are in italics.
[0109] FIG. 3A is the nucleotide sequence of the SMN coding region
as well as the 5' and 3' flanking regions of clone T-BCD541. The
coding sequences are underlined. The numbers of the exons are
indicated on the sequence. Asteriks indicate the beginning of each
exon. The nucleotides which are indicated in italics are those
which differ between the C-BCD541 and the T-BCD541 genes.
[0110] FIG. 3B represents the sequence from intron 6 up to the end
of exon 8 of the T-BCD541 gene. The sequence of exons 7 and 8 is
underlined.
[0111] FIG. 4 is the nucleotide sequences of the markers C212,
C272, C171, AFM157xd10, and C161.
[0112] FIG. 5 represents various probes utilized in the present
invention revealing several loci that the probes hybridized to.
[0113] FIG. 6 represents the telomeric element containing the
survival SMN gene.
[0114] FIG. 7 represents the marked decrease of gene dosage with
probe 132SEII, mapping close to this.
[0115] FIG. 8 represents the amino acid sequence of the truncated
SMN protein.
[0116] FIG. 9 is a schematic representation of the genomic
structure of the human SMN gene. The designations and positions of
genomic clones are shown above the figure. L-132, L-5, and L-13
depict the genomic clones spanning the entire SMN gene, while L-51
spans part of exon 1. Micro satellites and DNA markers are
indicated above the genomic map. B, H, and E mean BgIII, HindIII
and EcoRI, respectively. C212, p322, C272, 132SEII and C171
represent various markers. 1, 2a, 2b, 3, 4, 5, 6, 7, and 8
represent exons of the SMN and C-BCD541 genes. The entire sequence
of L-132 is obtained by PCR amplification from exon 1 to exon
2A.
[0117] FIG. 10 represents the nucleotide sequence and amino acid
sequence of the entire human SMN gene including the introns and
exons. Translated nucleotide sequences are in upper case, with the
corresponding amino acids shown below that. The polyadenylation
signal is in bold face. Arrowheads indicate the position of the
single base differences between SMN and C-BCD541 genes in introns 6
and 7 and exons 7 and 8. Italic letters indicate the position of
the oligonulcoeitdes chosen for the detection of divergences in
intron 7. (*) indicates the position of the stop codon.
[0118] FIG. 11 represents the nucleotide sequence upstream of the
coding region of the human SMN gene and illustrates the presence of
putative binding sites for the transcription factors of AP-2,
GH-CSE2, DTF-1, E4FI, HINF-A, H4TF-1, .beta.-IFN and SpI. Bold
letters indicate the dinucleotide repeat (CA) corresponding to the
C272 markers.
[0119] FIG. 12 represents the nucleotide and amino acid sequences
of Mouse SMN cDNA. (*) indicates the position of the stop
codon.
[0120] FIG. 13 represents a comparative analysis of the amino acid
sequence of human SMN (above) and mouse SMN (below).
[0121] FIG. 14 illustrates the genetic analysis of family 6 Lane A
shows evidence of inherited maternal deletion seen with the
microsatellite marker C272 as the proband inherited only allele
from the father. Lanes B and C represent SSCP analysis of
PCR-amplified exons 7 (lane B) and 8 (lane C) of SMN (closed
arrowheads) and its centromeric copy (open arrowheads). "F"
represents the father, "M" the mother, and "A" the affected
infant.
[0122] FIG. 15 illustrates the band shifts on single strand
confirmation polymorphism (SSCP) analysis of the PCR amplified
intron 7 and permitted indetification of SMN (closed arrowheads)
and its centromeric counterpart C-BCD541 (open arrowheads).
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE
INVENTION
[0123] As used herein, the term "contig" means overlapping
nucleotide sequences.
[0124] Previous studies by means of linkages analysis have shown
that all three forms of spinal muscular atrophy map to chromosome
5q11.2-q13.3. (L. M. Brzustowicz et al. Nature, 344, 540 (1990); J.
Melki et al, Nature, 345, 823 (1990); J. Melki et al, Lancet, 336,
271 (1990). A yeast artificial chromosome (YAC) contig of the 5q13
region spanning the disease locus was constructed that showed the
presence of low copy-repeats in this region. Allele segregation was
analyzed at the closest genetic loci detected by markers derived
from the YAC contig (C212. C272 and C161) in 201 SMA families.
These markers revealed two loci (C212, C272) or three loci on the
5q13 region (C161). Inherited and de novo deletions were observed
in 9 unrelated SMA patients. Moreover, deletions were strongly
suggested in at least 18% of SMA type I patients by the observation
of marked heterozygosity deficiency for the loci studied. These
results indicated that deletion events are statistically associated
with the severe form of SMA.
[0125] By studying all polymorphic DNA markers derived from the YAC
contig, it was observed that the smallest rearrangement occured
within a region bordered by loci detected by C161 and C212-C272 and
entirely contained in a 1.2-Mb YAC clone 903D1. See, for example,
French Patent Application No. 9406856 incorporated herein by
reference.
[0126] The present invention characterized the small nested
critical SMA region of about 140 Kb by a combination of genetic and
physical mapping in SMA patients. This region suggested a precise
location for the SMA gene and therefore, a limited region within
which to search for candidate genes. The present invention
identified a duplicated gene from the 5q13 region. One of them (the
telomeric gene) is localized within the critical region. Moreover,
this gene was lacking in 213 out of 230 (92.2%) or interrupted in
13 out of 230 (5.6%) SMA patients. In patients where the teiomeric
gene is not lacking or interrupted, deleterious mutations indicated
that this telomeric gene, termed survival motor-neuron (SMN) gene,
is the chromosome 5 SMA-determining gene.
[0127] The SMN gene was discovered using a complex system of
restriction mapping, distinguishing the E.sup.Tel from the
E.sup.Cen by Southern blot, and the determination of the
differences between the E.sup.Tel in SMA patients by genetic and
physical mapping. After confirming the location of the SMN gene, a
phage contig spanning the critical region of the telomeric element
was constructed to identify specific clones containing the SMN
gene.
[0128] Analysis of the SMN gene in SMA patients compared with those
of normal patients revealed either the SMN gene was either lacking
or truncated in 98% of SMA patients or had combined mutations not
present in normal control patients.
[0129] To identify a large inverted duplication and a complex
genomic organisation of the 5q13 region, long-range restriction
mapping using pulsed field gel electrophoresis (PFGE) of the YAC
contig was performed.
[0130] YACs were ordered by comparing their haplotypes with that of
the human donor at the polymorphic loci detected markers C212,
C272. C171 and C161 (FIG. 4).
[0131] The restriction enzymes SacII, BssHII, SfiI, EagI and XhoI
were used to digest the YACs containing the telomeric loci detected
by markers C212, C272, C171 and C161 (YAC clone 595C11), the
centromeric loci detected by these markers (YAC clones 121B8,
759A3, 278G7) or both (YAC clones 903D1 and 920C9). Lambda phage
libraries of YACs 595C11, 121B8 and 903D1 were constructed and
subclones from phages containing markers C212 (p322), C272
(132SE11), C161(He3), AFM157xd10(131xb4) and CMS1 (p11M1) were used
as probes for PFGE analysis. FIG. 5 shows that probes 132SE11, 11P1
and p322 revealed two loci, and probe He3 revealed 4 loci on the
YAC contig, whereas probe 131xb4 revealed several loci on 5p and
5q13. The restriction map (FIG. 6) showed that the 5q13 region
contained a large inverted duplication of an element (E) of at
least 500 Kb, termed E.sup.Tel and E.sup.Cen for the telomeric and
centromeric elements, respectively.
[0132] The PFGE analysis of SMA and control individuals revealed a
high degree of variability of restriction fragments which hampered
the distinghishment of E.sup.Tel from the E.sup.Cen and the
recognition of abnormal restriction fragments in SMA patients.
[0133] In order to distinguish between the E.sup.Tel and the
E.sup.Cen, a Southern blot analysis was then performed. The
Southern blot was performed by the methods described in Sambrook et
al, supra.
[0134] More specifically, DNA from YAC clones, controls and SMA
patients was digested with restriction enzymes SacI, KpnI, MspI,
PstI, PvuII, EcoRI, HindIII, BgIII and XbaI for Southern blotting
and hybridized with clones 132SE11, 11p1, He3, 131xb4 and p322 as
probes. None of the probes except one (He3) detected a difference
between the two duplicated elements. Three HindIII restriction
fragments of 12, 11 and 3.7 Kb were detected by probe He3. A 12 Kb
HindIII restriction fragment was detected in YAC clones 754H5 and
759A3, indicating that this fragment corresponded to the most
centromeric locus in the E.sup.Cen. Conversely, a 11 Kb HindIII
fragment was detected in YACs clones 595C11, 903D1 and 920C9
indicating that this fragment corresponded to a single locus on the
E.sup.Tel. Finally, a 3.7 Kb HindIII fragment was noted in
non-overlapping YACs containing either E.sup.Tel or E.sup.Cen,
indicating that this fragment corresponded to two different loci.
Similar results were obtained with SacI and KpnI. The three
restriction fragments detected by He3 were observed on the
monochromosomal hybrid HHW105 (Carlock, L. R. et al, Am. J. of
Human Genet., 1985, Vol. 37, p. 839) and in 30 unrelated, healthy
individuals, confirming that these fragments were not due to
polymorphisms. The Southern analysis results allowed one to
distinguish E.sup.Tel from the E.sup.Cen in both controls and SMA
patients.
[0135] Thus, once the E.sup.Tel from the E.sup.Cen was
distinguished, it was necessary to determine the differences
between the E.sup.Tel in SMA patients and those of the normal
control. This was done by using genetic and physical mapping. This
genetic and physical mapping identified genomic rearrangements in
the telomeric element of E.sup.Tel of SMA patients.
[0136] It was previously shown that 9 out of 201 (9/201) SMA
patients displayed large-scale deletions encompassing either one or
the two loci detected by markers C212 and C272 on one mutant
chromosome (J. Melki et al, Science, 264, 1474 (1994)). On the
other hand, 22 out of 30 (22/30) patients born to consanguineous
parents including 13 out of 14 (13/14) type I and 9 out of 10
(9/10) type III SMA, were homozygous by descent for the most
closely flanking polymorphic markers.
[0137] The genomic DNA of the 9 patients harboring large scale
deletions and the 22 consanguineous patients displaying
homozygosity by descent were digested with HindIII for Southern
blotting and hybridized with probe He3. The 11 Kb fragment revealed
by probe He3 was absent in 12 out of 13 (12/13) consanguineous type
I patients. In 2 out of 12 (2/12), the deletion also involved the
3.7 Kb fragment. By contrast, the 11 Kb fragment was absent in 1
out of 8 (1/8) consanguineous type III patients only. Consistently,
the 11 Kb HindIII fragment was absent in 4 out of 9 (4/9) patients
harboring large scale deletions on one mutant chromosome. Of
particular interest was the absence of the 11 Kb fragment in the
patient harboring a deletion of one of the two loci detected by
markers C212 and C272.
[0138] When analyzed together, these observations provided evidence
for genomic rearrangements of E.sup.Tel in SMA patients and
supported the location of the SMA gene centromeric to the locus
revealed by the 11 Kb HindIII fragment, since all consanguineous
type III patients but one were not deleted for this locus.
[0139] In order to characterize the centromeric boundary of the
genomic rearrangement in the disease, the allele segregation at
loci detected by marker C272 in consanguineous SMA patients was
analyzed. All consanguineous SMA type I patients had one single PCR
amplification product, compared with 0 out of 60 controls. This
marked heterozygosity deficiency was due to deletion of one of the
two loci detected by C272, as indicated by the marked decrease of
gene dosage with probe 132SE11. mapping close to this marker. By
contrast, 7 out of 9 (7/9) consanguineous type III SMA patients had
two C272 amplification products inherited from both parents,
indicating homozygosity at each locus detected by marker C272.
Moreover, no gene dosage effect was observed with probe 132SE11
indicating the absence of deletion involving the locus detected by
C272 in type III consanguineous patients.
[0140] Assuming that the same locus is involved in all three types
of SMA, these results indicate that the disease causing gene is
distal to the telomeric locus detected by C272.
[0141] These studies place the SMA gene within the telomeric
element E.sup.Tel, between the telomeric loci detected by markers
C272 and He3 (11 kb HindIII fragment). Based on long-range
restriction mapping using PGFE of the YAC contig, this critical
region is entirely contained in a 140 Kb SacII fragment of YAC
clone 903D1 (or 150 Kb SacII fragment of YAC clone 920D9).
[0142] After confirming that the SMN gene was located on a 140 Kb
SacII fragment a phage contig spanning the critical region of the
telomeric element was constructed in order to identify and
characterize the SMN gene.
[0143] Phage clones containing markers C212, C272, C171 and C161
were isolated from the .lamda. phage libraries constructed from YAC
clones 595C11 and 903D1 and used as a starting point for
bidirectional walking. A phage contig (60 Kb) surrounding markers
C212, C272 and C171 was constructed based on the restriction map of
the phage clones (FIG. 6).
[0144] To identify genes in the contig, the following three
stategies were used:
[0145] 1 ) a search for interspecies-conserved sequences was
conducted;
[0146] 2) exon trapping method was performed; and
[0147] 3) direct cDNA selection was performed. The genomic probe
132SE11, derived from the phage containing the marker C272, gave
positive hybridization signals with hamster DNA indicating the
presence of interspecies-conserved sequences. The screening of a
.lamda.gt10 human fetal brain cDNA library with probe 132SE11
resulted in the selection of 7 overlapping .lamda. clones spanning
1.6 kbp. Sequence analysis of the clones revealed a 882 bp
open-reading frame (ORF) and a 580 bp non-coding region. A 1.5 kbp
clone (BCD541) contained the entire coding sequence and most of the
3' non-coding region. The 3' end of the cDNA along with its
poly(A).sup.+ tail was obtained by PCR-amplification of a
lymphoblastoid cell line cDNA library.
[0148] Two cDNA clones lacked nucleotides 661 to 755, suggesting
that an alternative splicing might have occured. Northern blot
analysis of poly(A).sup.+ RNA from various tissues including heart,
brain, liver, muscle, lung, kidney and pancreas, revealed the
presence of a widely expressed 1.7 kb transcript. The ORF encodes a
putative protein of 294 amino acids with a predicted molecular
weight of approximately 32 Kd.
[0149] A homology search using the FASTA and BLAST networks failed
to detect any homology at either the nucleotide or the amino acid
level.
[0150] To further distinguish whether there was any duplication of
the BCD541 gene in the 5q13 region, BCD541 cDNA was used as a probe
for Southern blot and PFGE analysis of YAC clones spanning the
disease locus.
[0151] Specific hybridization with non-overlapping YACs containing
either the E.sup.Cen only (YAC clones 759A3, 121B8 and 278G7), or
containing the E.sup.Tel only (YAC clone 595C11) provided evidence
for duplication of the BCD541 gene. Each gene encompassed
approximately 20 kb and displayed an identical restriction pattern.
Evidence for head to head orientation of the two genes was derived
from the location of the SacII and EagI restriction sites of the
non-overlapping YAC clones containing either E.sup.Cen or
E.sup.Tel, following hybridization experiments with probes BCD541
and p322 which flank the SacII and EagI sites of each element.
[0152] In order to look for divergences in the two copies of the
BCD541 gene, the organization of the telomeric gene was
characterized and compared to that of the centromeric counterpart.
Genomic sequence analysis revealed that the telomeric BCD541 gene
is composed of 8 exons (FIG. 3). However, it is now known that the
previously known exon 2 is composed of 2 exons separated by an
additional intron as set forth in FIG. 10, therefore the SMN gene
is composed of 9 exons.
[0153] Starting from either the centromeric or telomeric gene loci
(in YAC clones 121B8 and 595C11, respectively), PCR-amplification
and sequence of each exon and their flanking regions revealed five
discrepancies between the centromeric and the telomeric BCD541
genes. The first one is a conservative substitution in exon 7
(codon 280) specific for the telomeric (TTC) or the centromeric
BCD541 gene (TTT). The second one, located in the 3' non-coding
region (exon 8 nucleotide n.degree. 1155) is specific for the
telomeric (TGG) or the centromeric BCD541 gene (TGA). Three other
single base substitutions were observed in the sixth and seventh
introns.
[0154] The observation of both versions of each exon (exon 7 and 8)
on either YAC clones containing both gene loci (YAC clone 920C9) or
the monochromosomal hybrid HHW105 demonstrated that these
substitutions are neither allelic nor due to polymorphisms. Band
shifts on SSCP analysis of amplified exons 7 and 8 allowed an easy
distinction of the telomeric (T-BCD541) and centromeric genes
(C-BCD541) in both controls and SMA patients. All the unrelated
healthy controls testeo (n=75) harbored the T-BCD541 gene as
determined by SSCP analysis of exons 7 and 8 (100%). Most of them
(89.3%) also harbored the C-BCD541 gene but 8 out of 75 (8/75)
(10.7%) lacked the C-BCD541.
[0155] A total of 230 SMA patients were tested for single base
substitutions detected in exons 7 and 8 by SSCP method after
PCR-amplification of genomic DNA. Among them, 103 belonged to type
I, 91 to type II, and 36 to type III. Interestingly, 213 out of 230
SMA patients (92.6%) lacked the T-BCD541 gene on both mutant
chromosomes (compared with 0 out of 75 controls (0%). Moreover, 13
out of 230 SMA patients (5.6%) lacked the T-BCD541 gene for exon 7
on both mutant chromosomes but retained the T-BCD541 gene for exon
8 compared with 0 out of 75 controls (0%). Finally, only 4 out of
230 SMA patients (1.7%) harbored the T-BCD541 gene as determined by
SSCP analysis of exons 7 and 8.
[0156] These results show that the T-BCD541 gene is either lacking
or truncated in 98% of SMA patients. In addition, these data
support the view that the disease gene is located between the
telomeric locus detected by C272 and exon 8 of the T-BCD541 gene.
Therefore, according to the overlapping restriction map of the
phage contig, the critical region is entirely contained in 20 kb,
suggesting that the telomeric BCD541 gene is the chromosome 5
SMA-determining gene.
[0157] In order to demonstrate that the T-BCD541 gene is
responsible for SMA, point mutations in the 4 SMA patients in whom
no rearrangement of the T-BCD541 gene had been observed were
searched. Direct sequencing of PCR amplification products of each
exon with their flanking regions was performed in the four
patients.
[0158] A 7 bp deletion in the 3' splice acceptor site of intron 6
(polypyrimidine tract) was found in patient SA. Sequence analysis
of exon 7 flanking the deleted intron, recognized the sequence
specific for the T-BCD541 gene. Moreover, the non-deleted
PCR-product corresponding to the same region, harbored the sequence
specific for the C-BCD541 suggesting that the other mutant allele
lacked the T-BCD541 gene.
[0159] In patient BI, a 4 bp deletion in the 5' consensus splice
donor site of intron 7 was found. This deletion occured on the
T-BCD541 gene as determined by sequence analysis of the flanking
exon 7.
[0160] In patient HU, a point mutation in codon 272
(TAT.fwdarw.TGT) was found. This mutation changed a Tyrosine to
Cysteine. The patient was heterozygous for the mutation, presumably
carrying a different SMA mutation on the other allele. All three
mutations observed in patients SA, HU and BI were not detected in
100 normal chromosomes ruling out rare polymorphisms.
[0161] A different splicing of exon 7 distinguished the C-BCD541
from the T-BCD541 gene using reverse transcription-based PCR.
Eleven SMA patients were selected for the analysis of their
transcripts by Northern blot or reverse transcription-based PCR
amplification. Eight of them belonged to type I, 1 to type II and 2
to type III. SSCP analysis of genomic DNA showed an absence of
T-BCD541 gene in 10 patients and one patient (SA) had C-BCD541 and
T-BCD541 genes for both exons 7 and 8. Six unrelated controls who
harbored both C-BCD541 and T-BCD541 genes arid 2 controls with only
T-BCD541 gene were included in the present study.
[0162] The expression of this gene in lymphoblasts made it possible
to analyze the BCD541 transcripts in cell lines derived from
controls and SMA patients. Northern blot analysis of RNA from
lymphoblastoid cell lines showed the presence of a 1.7 kb mRNA in
all samples. None of the SMA patients showed a transcript of
altered size. It was observed that a reduced level of transcripts
was obtained when compared to the expression of the .beta.-actine
gene in 3 out of 4 type I SMA patients. Normal mRNA level were
found for the other SMA probands.
[0163] Since the Northern blot analysis revealed the presence of a
transcript in SMA patients who had the C-BCD541 gene only for both
exons 7 and 8 as determined by SSCP analysis, these results
indicated that both C-BCD541 and T-BCD541 genes were expressed. To
prove whether both BCD541 genes were expressed, RT-based PCR
amplification of RNA isolated from the lymphoblastoid cell lines
from controls and SMA patients was used. Direct sequencing of PCR
products flanking exons 7 and 8 revealed that patients who had
C-BCD541 only displayed the sequence specific for the C-BCD541
gene. Controls who had both T-BCD541 and C-BCD541 genes, had two
types of transcripts corresponding to both BCD541 genes. These
results confirmed that both genes were expressed. In addition, 2
alternative splicings involving exon 5 or exon 7 that resulted in
different transcripts were observed. The alternative splicing of
exon 5 confirmed previous sequence data on the cDNA clones.
[0164] The analysis of the RT-PCR amplification products
encompassing exons 6 to 8 showed that the spliced transcript
keeping exon 7. was present in controls who had both C-BCD541 and
T-BCD541 genes or controls who had the T-BCD541 gene only.
Conversely, the alternative spliced transcript lacking exon 7 was
observed in controls who had both genes, but not in controls who
had the T-BCD541 gene only. These results indicated that the
alternative spliced transcript lacking exon 7 was derived from the
C-BCD541 gene only.
[0165] The transcript analysis of patient SA harboring a 7 bp
deletion of the 3' splice acceptor site of intron 6 of the T-BCD541
gene revealed the presence of both spliced transcript keeping exon
7 and alternate spliced transcript lacking exon 7. Moreover, the
sequence analysis of amplification products from the spliced
transcript keeping exon 7, showed a sequence specific for the
C-BCD541 gene (FIG. 2). These results demonstrated that the 7 bp
deletion of intron 6 observed in patient SA was deleterious for the
correct splicing of exon 7 of T-BCD541 gene only. In addition,
because a differential splicing of exon 7 allowed one to
distinguish the 2 BCD541 genes, this difference was analyzed among
controls and SMA patients including patient SA. In controls, the
amount of alternated spliced transcript lacking exon 7 was less
abundant than that of spliced product keeping exon 7. Conversely,
in SMA patients, the amount of alternated spliced transcript
lacking exon 7 was equal or more abundant than that of spliced
product keeping exon 7.
[0166] These results provide evidence for a difference between
controls and SMA patients at the transcription level of these
genes. The alternative spliced transcript lacking exon 7 resulted
in a shorter ORF with a different C-terminus protein that might
have effects on the protein function.
[0167] To further characterize the entire structure and
organization of the human SMN gene, three genomic clones were
isolated from a FIX II phage library derived from YAC clone 595C11
and screened with the full-length BCD541 cDNA (FIG. 2A) as a probe.
After selecting several clones that hybridized to the probe,
restriction mapping and Southern blot analysis indicated that
phages L-132, L-5 and L-13 spanned the entire SMN gene.
[0168] These three phage clones were further subjected to
sequencing using the Maxam-Gilbert or Sanger et al methods of
sequencing disclosed in Sambrook et al supra.
[0169] The nucleotide and amino acid sequence of the entire SMN
gene including exons and introns is set forth in FIG. 10. The human
gene is approximately 20 kb in length and consists of nine (9)
exons interrupted by 8 introns as shown in FIG. 10. The human SMN
gene has a molecular weight of approximately 32 kDA.
[0170] Although it was thought that only one exon 2 was present in
the SMN gene (see, Lefebvre et al. Cell, 80:155-165 (1995)), the
sequencing data proved otherwise and the previously mentioned exon
2 in Lefebvre et al supra is in fact composed of 2 exons separated
by an additional intron, as illustrated in FIGS. 9 and 10. To avoid
confusion in the renumbering of exons, the 2 exons in exon 2 are
now referred to as exon 2a and exon 2b.
[0171] All exon-intron bounderies displayed the consensus sequence
found in other human genes and a polyadenylation consensus site is
localized 550 bp downstream from the stop codon (FIG. 10).
[0172] Starting from either YAC clones 121B8 or 595C11 (which
contain the C-BCD541 and SMN genes respectively, (see, Lefebvre et
al, supra) PCR amplification and sequence analysis of the introns
showed three differences between SMN and C-BCD541 in addition to
those previously described (by Lefebvre et al, supra). These
included a base change in intron 6 (-45 bp/exon 7, atgt, telomeric;
atat, centromeric) and two changes in intron 7 (+100 bp/exon 7,
ttaa, telomeric; ttag, centromeric and at position +214 bp/exon 7,
ttat, telomeric; ttgt, centromeric, FIG. 10). The presence of both
versions in a YAC clone containing both genes (YAC 920C9), and in
the control population demonstrated that these substitutions are
locus-specific rather than due to polymorphism. Band shifts on
single strand conformtation polymorphism (SSCP) analysis of the PCR
amplified intron 7 allowed SMN and its centromeric counterpart
(C-BCD541) to be readily distinguished (see, FIG. 15).
[0173] In order to identify sequences potentially important for
promoter function, the organization of the region surrounding exon
1 of the SMN and C-BCD541 genes was characterized. Based on
restriction mapping, Southern blot hybridization and PCR
amplification, exon 1 and the C272 marker (D5F150S1, D5F150S2) were
located in the same BgIII-EcoRI restriction fragment of L-132 phage
(FIG. 9). PCR amplification using the C272f primer and a reverse
primer chosen in exon 1 was performed and the amplified product was
directly sequenced. Sequence analysis showed that the (CA) repeat
corresponding to the C272 marker are located 463 bp upstream from
the putative ATG translation start site (FIG. 11). Comparative
sequence analyses showed no discrepancy between the 5' ends of the
SMN gene and its centromeric counterpart (C-BCD541). In addition,
sequence analysis showed the presence of putative binding sites for
the following transcription factors: AP-2, GH-CSE2, DTF-1, E4F1,
HiNF-A, H4TF-1, .beta.-IFN, Sp1 (FIG. 11; Faisst et al, Nucleic
Acids Res., 20:3-26 (1992)).
[0174] Besides isolating and characterizing the human SMN gene, the
mouse homologue of the SMN gene was also cloned. Cross-species
conservation of human SMN gene with rodents has been shown in
Lefebvre et al, supra and served to isolate the mouse SMN gene.
Screening of a mouse fetal cDNA library using human SMN cDNA as a
probe allowed the isolation of 2 overlapping mouse cDNA clones,
Sequence analysis of the clones revealed an 864 bp open-reading
frame (ORF) (FIG. 12). The ORF encodes a putative protein of 288
amino acids (FIG. 12) with an homology of 83% with human SMN amino
acid sequence (FIG. 13).
[0175] Either the isolated human or the mouse SMN, the gene can be
inserted into various plasmids such as pUC18, pBr322, pUC100,
.lamda.gHI, .lamda.18-23, .lamda.ZAP, .lamda.ORF8, and the like.
The methods for inserting genes into different plasmid vectors are
described by Sambrook et al supra. Various microorganisms can be
used to transform the vector to produce the SMN gene. For example,
host microorganisms include, but are not limited to, yeast, CHO
cells, E. coli, Bacillus subtilis and the like.
[0176] Once recombinantly produced, the human SMN protein or the
mouse SMN protein can be further purified from the host culture by
methods known in the art.
[0177] Besides recombinantly producing the SMN protein, the present
invention also relates to the production of polyclonal and
monoclonal antibodies. These methods are known in the art as
evidenced by Sambrook et al supra. The monoclonal antibody can be
obtained by the procedure of Kohler and Milstein, Nature, 256:495
(1975); Eur. J. Immunol., 6:511 (1976) or Harlow and Lane
Antibodies, a Laboratory Manual, Cold Spring Harbor Laboratory,
Cold Spring Harbor, New York (1988), and can he used, for example,
in diagnosing SMA, as well as other motor neuron disorders.
[0178] Polyclonal rabbit antisera can also be generated against
synthetic peptides corresponding to any part of the SMN amino acid
sequence including the amino terminus and carboxy terminus. More
specifically, the following peptides were synthesized based on the
amino acid sequence set forth in FIG. 1: TABLE-US-00015 N- G G V P
E Q E D S V L F R R G T C- terminal S R S P G N K S D N I K P K
terminal F R Q N Q K E G R C S H S L N
[0179] The synthetic peptide may be coupled to a carrier protein
such as Keyhole limpet hemocyanin (KLH) through an amino- or
carboxy-artificial cysteine residue that may be synthetically added
to the desired sequence. The cysteine residue is used as a linker
to couple the synthetic peptide to the carrier protein. The
procedure utilized to couple synthetic peptides to KLH is described
by Green et al. Cell, 28:477 (1982).
[0180] Approximately, 50-100 .mu.g, preferably 100 .mu.g of
synthetic antigen is dissolved in buffer and emulsified with an
equal volume of Freund's complete adjuvant. About 0.025 ml to 0.5
ml of emulsified antigen-adjuvant can be injected intramuscularly
or intradermaly into a rabbit. Four to six weeks later, the rabbit
is boosted and 20-40 ml of blood is drawn 7-10 days after each
booster injection. The serum is then tested for the presence of
antigen using RIA, ELISA or immunoprecipitation. The positive
antibody fractions may then be purified, for example by absorption
to protein A following the method of Goudswaald et al, Scand. J.
Immunol., 8:21 (1978).
[0181] More specifically, about 20 to 50 .mu.g of antigen, prepared
either by the recombinant techniques set forth above or
synthetically made antigen is diluted in about 100 .mu.l of buffer
and emulsified with an equal amount of Freund's complete adjuvant.
About 30-60, preferably 50 .mu.l of the emulsified antigen-adjuvant
is injected subcutaneously at four sites into mice. Four to six
weeks later, the mice are boosted with an intraperitoneal injection
of about 100 .mu.l containing 5-10 .mu.g of antigen Solubilized in
buffer. The mice are bled from the mediam tail vein 7-10 days after
the boaster injection and the serum is tested for antibody using
standard methods. Blood is then drawn every 3-4 days until the
antibody titer drops.
[0182] Tissue, plasma, serum, cerebral spinal fluid and the like
can be used to detect SMA disease using the above-described
monoclonal or polyclonal antibodies via Western blot (1 or 2
dimensional) or ELISA. These methods are known in the art as
described by Sambrook et al, supra.
[0183] A method for detecting SMA as well as in ALS, ACM, and PLS
patients who possibly have these motor neuron disorders, is also
encompassed by the present invention. This method involves
extracting from a patient suspected of having SMA. DNA from a
sample. This sample may include sera, plasma, cerebral spinal fluid
and the like. After extracting the DNA by known methods in the art,
primers that are derived from exons 7 and 8 of the SMN gene are
used to amplify the DNA.
[0184] After amplification with the primer, the amplified product
is subjected to SSCP (Single Strand Conformation Polymorphism).
[0185] The gels are then subjected to autoradiography to determine
if SMA is present in the sample.
[0186] More specifically, it has recently been discovered that in
twelve cases of arthrogryposis multiplex congenita (AMC) associated
with SMA, 6 out of 12 patients lacked the SMN gene.
[0187] A total of twelve unrelated patients including eight males
and four females of various geographic origins was selected for the
study. The patients were chosen based on the criteria that these
patients had:
[0188] (1) congenital joint contractures of at least two regions of
the body (see, Stern, JAMA, 81:1507-1510 (1923));
[0189] (2) generalized muscle weakness with muscular atrophy and
areflexia without extraocular involvement;
[0190] (3) electromyographic studies showed denervation and
diminished motor action potential amplitude; and
[0191] (4) muscle biopsies consistent with denervation with no
evidence of storage material or other structural abnormalities
(see, Munsat, Neuromuscular Disorders, 1:81 (1991)).
[0192] The study consisted of Dinucleotide Repeat Polymorphism
Analysis and SMN gene analysis (see, Examples) based on DNA
extracted from peripheral blood leukocytes, lymlphoblastoid cell
lines or muscle tissue in all twelve patients.
[0193] The data from this study is summarized in Table 1 below.
[0194] The diagnosis was made at birth with an uniform phenotype
characterized by a severe hypotonia, absence of movements except
extraocular mobility and contractures of at least two joints. The
number of affected joints and the severity of the postural defects
varied from infant to infant, as set forth in Table 1. Decreased
fetal movements were noted in 7 out of 12 (7/12) patients. Neonatal
respiratory distress was observed in 9 out of 12 (9/12) patients
and facial involvement associated with micrognathia was noted in 4
out of 12 (4/12) patients. Most of the cases, 8 out of 12 (8/12),
died within the first month of life. Four infants are still alive.
No family history was noted except in family 12 in which both the
child and her father were affected suggesting an autosomal dominant
form of AMC.
[0195] Table 1 shows that the SMN gene was lacking on both mutant
chromosomes in 6 out of 12 (6/12) patients (cases 1-6). Among them,
3 out of 6 (3/6) patients had a large inherited deletion involving
both loci detected by markers C212 and C272 on one parental allele,
the other parental carrying only one locus instead of the expected
two, as shown in FIG. 14.
[0196] Analysis of SMN exons did not reveal intragenic mutations in
the patients whose SMN gene showed no deletions (cases 7-12).
Genetic analysis showed that the disease gene in a family (case 9)
was not linked to chromosome 5q13 as both the affected and healthy
siblings carried the same 5q13 haplotype. These data strongly
suggest that the patients whose SMN gene showed no deletions were
not linked to the 5q13 SMA locus (cases 7-12).
[0197] Hitherto, arthrogryposis was regarded as an exclusion
criterion in SMA (see, Munsat, supra). But the observation of SMN
gene deletion in 6 out of 12 (6/12) patients (50%) strongly
indicates that arthrogryposis of neurogenic origin is related to
SMA and that this subgroup and SMA are allelic disorders. Yet, AMC
of neurogenic origin is a genetically heterogeneous condition since
the disease gene was not linked to SMN locus in 6 out of 12 (6/12)
patients. Exclusion of chromosome 5q has also been shown in one
family with two AMC-SMA patients, as described by Lunt et al, J.
Med. Genet., 29:273 (Abstract) (1992).
[0198] Thus, by dinucleotide Repeat Polymorphism Analysis and SMN
gene analysis, clinical diagnosis of AMC can be confirmed by the
absence or interruption of the SMN gene. The present invention now
provides methods to detect AMC either in live patients or in
utero.
[0199] Yet another embodiment of the present invention is the
detection of SMA using specific oligonucleotide probes based on the
nucleotide sequence set forth in FIGS. 3, 10, or for the mouse SMA
FIG. 12. If a patient totally is lacking in the SMN gene, no
hybridization to the specific probe will occur. The hybridization
conditions may vary depending upon the type of sample utilized. It
is preferable to conduct such hybridization analysis under
stringent conditions which are known in the art and defined in
Sambrook et al supra. The oligonucleotide probes may be labeled in
any manner such as with enzymes, radioactivity and the like. It is
preferable to use radiolabeled probes.
[0200] In another embodiment of the present invention, the human
SMN gene can be utilized in conjunction with a viral or non-viral
vector for administration in vivo directly to the patients
suffering from SMA or related motor neuron diseases or by
administration in vitro in bone marrow cells, epithelial cells
fibroplasts, followed by administration to the patient. See, for
example Resenfeld et al, Science (1991) 252, pp. 431 to 434.
[0201] The present invention provides a method of detecting SMN
gene defects or the total lack of the SMN gene in a fetus. Amniotic
fluid taken from the pregnant woman is subjected to SSCP analysis
according to the methods of the present invention.
[0202] In order to further illustrate the present invention and
advantages thereof, the following specific examples are given, it
being understood that the same are intended only as illustration
and in nowise limitative.
EXAMPLES
Example 1
[0203] Construction of Phage Libraries from the 121B8, 595C11, and
903D1 YAC Clone.
[0204] Total yeast DNA from YAC clone 595C11 containing the
telomeric loci detected by C212, C272 and C161, or YAC clone 121B8
containing the centromeric loci detected by the same markers or
903D1 YAC clone containing both loci was purified and partially
digested with Sau3A. DNA in the size range of 12 to 23 kb was
excised after 0.5% Seaplaque GTG agarose gel electrophoresis and
precipitated with ethanol after .beta.-agarase digestion. After
partial fill-in of the Sau3A site, DNA was subcloned at the
partially filled XhoI site of bacteriophage FIXIII (Stratagene).
Clones of .lamda. containing the microsatellite DNA markers C212
(L-51), C272 (L-51, L-132), C171 (L-5, L-13). C161 (595B1), 11M1
(L-11). AFM157xd10(L-131) were digested either with EcoRI or
HindIII or both and subcloned into pUC18 plasmid vectors. Subclones
from phages containing markers C212(p322), C272(132SE11),
C161(He3), AFM157xd10(131xb4) and CMS1(p11M1) were used as
probes.
Example 2
[0205] Pulsed Field Gel Electrophoresis Analysis
[0206] High molecular weight DNA was isolated in agarose plugs from
Epstein-Barr virus transformed lymphoblastoid cell lines
established from controls and patients or from YAC clone as
described. Plugs were rinsed twice for 30 min. each in 10-20 min
vol. TE. The plugs were equilibrated for 30' at 4.degree. C. with
0.3 ml of the appropriate restriction enzyme buffer containing 0.1
mg/ml BSA (Pharmacia). Excess buffer was then removed and the plugs
were incubated at the appropriate temperature for 16 h with 40 U
restriction enzyme per reaction. DNA was digested with the
restriction enzymes BssHII, EagI, SfiI, SacI, KpnI, SacII, SpeI.
Separation of DNA fragments was performed using a CHEF-III-DR PFGE
apparatus (Biorad). Fragments from 50 to 1200 kb were separated by
electrophoresis through 1% agarose Seakem, at 200 V for 24 h at
14.degree. C. in 0.5.times.TBE running buffer using a 30' to 70'
ramping pulse time. The separation of fragments from 5 to 100 kb
was performed by electrophoresis at 200 V for 19 h at 14.degree. C.
in 0.5.times.TBE buffer using a 5' to 20' ramping pulse time. After
treatment with 0.25N HCl for 20 min, pulsed field gels were blotted
onto Hybond N+ Nylon membrane (Amersham) in 0.4N NaOH, 0.4M NaCl
for 20 h. Probes were successively hybridized to the same filters
to ensure accurate data. Hybridizations were performed as
described.
Example 3
[0207] YAC Library Screening
[0208] YAC libraries from CEPH were screened by PCR with
microsatellites C212, C272, C171, CMS1, and C161. YAC genotypes
were established by electrophoresis of PCR products on denaturing
polyacrylamide gels. YAC size was estimated by pulsed field gel
electrophoresis.
Example 4
[0209] Southern Blot Analysis
[0210] DNA samples were extracted from either peripheral blood
leukocytes or lymphoblastoid cell lines. DNA were digested with
restriction enzymes EcoRI, HindIII, BgIII, XbaI, PvuII, XmnI, RsaI,
PstI, BamHI, separated by electrophoresis on an 0.8% agarose gel
for Southern blotting and hybridized with radioactively labeled
probes.
Example 5
[0211] Dinucleotide Repeat Polymorphisms
[0212] Genotypic data were obtained for the C212(D5F149S1, -S2),
C272(D5F150S1, -S2) and C161(D5F153S1, -S2) dinucleotide repeat.
Amplification conditions were as follows: denaturation at
94.degree. C., annealing at 55.degree. C., and extension at
72.degree. C., 1 min each for 30 cycles. The procedure used for
detection of dinucleotide repeat polymorphisms has been described
elsewhere.
Example 6
[0213] cDNA Clone and DNA Sequencing
[0214] Two million recombinants of a .lamda.gt10 human fetal brain
library were plated according to the manufacturer (Clontech).
Prehybridization and hybridization was carried out in 10% Dextran
Sulphate Sodium, 1 M NaCl, 0.05 M Tris-HCl pH 7.5, 0.005 M EDTA and
1% SDS with 200 mg/ml sheared human placental DNA (Sigma) for 16
hours at 65.degree. C. The filters were washed in
0.1.times.SSEP-0.1% SDS at 65.degree. C. and autoradiographs were
performed for 24 hours. The DNA of positive cDNA clones were
purified, digested with EcoRI and subcloned in M13 bacteriophage.
Single strand DNAs were sequenced using the DyeDeoxy.TM. Terminator
Cycle Sequencing Kit protocol supplied by Applied Biosystems, Inc.
and analyzed on a ABI model 373A DNA automated sequencer. To obtain
the 3' end of the cDNA along with its poly(A).sup.+ tail,
PCR-amplification of a lymphoblastoid cell line cDNA library was
performed using specific primer complementary to the 3' end of the
clones and primer specific to the vectors arms of the cDNA library
as previously described (Fournier B., Saudubray J. M., Benichou B.
et al, 1994, J. Clin. Invest. 94:526-531). Specific PCR-products
were directly sequenced with both primers using the DyeDeoxy.TM.
Terminator Cycle Sequencing Kit protocol supplied by Applied
Biosystems, Inc. and analyzed on a ABI model 373A DNA automated
sequencer.
Example 7
[0215] Isolation of RNA and Northern Blot Analysis
[0216] mRNA from lymphoblast cell lines of controls and SMA
patients were isolated with the QuickPrep mRNA purification kit
(Pharmacia) according to the supplier's procedure. Total RNA was
prepared following the single-step RNA isolation method described
by Chomczynski and Sacchi (Analytic Biochemistry, 162:156-159
(1987)). The total RNA preparation was treated with RQ1-DNAse
(Promega) to remove any contaminating genomic DNA. Northern blots
were made from mRNA and total RNA by electrophoresis through 1.5%
seakem agarose gel containing methyl mercuric hydroxide and
transferred to positively charged membrane in 20.times.SSC and
heated for 2 hours at 80.degree. C. .sup.32P-radiolabeled DNA
probes were synthesized by a random priming method according to the
manufacturer (Boehringer), and hybridized in a solution containing
5.times.SSEP, 1% SDS, 5.times. Denhardt's for 16 hours at
65.degree. C. The membranes were washed to a final stringency of
0.1.times.SSEP, 0.1% SDS at 65.degree. C. for 10 min.
Autoradiography was at -80.degree. C. with intensifying screens and
Kodak XAR films for 2 to 10 days. The amount of mRNA was normalized
with a b-actine cDNA probe. The autoradiographs were scanned at 600
nm in computerized densitometer (Hoeffer Scientific Instruments,
San Francisco). A Northern blot with polyA+ RNA from several huma
tissues was purchased from Clontech.
Example 8
[0217] Reverse Transcriptase-Based PCR Amplification and
Sequencing
[0218] Each PCR amplification was carried out in a final volume of
20 ml on single-strand cDNAs synthesized from the random
hexamers-primed reverse transcription (Promega). The PCR reactions
included 2 picomoles of forward and reverse primers and 1 unit Taq
polymerase in the reaction buffer recommended by Perkin
Elmer/Cetus. Parameters for PCR amplification consisted in 1 min at
94.degree. C., 1 min at 55.degree. C. and 1 min at 72.degree. C.
for 30 cycles followed by a final extension period of 10 min at
72.degree. C. Parameters for PCR amplification consisted in 1 min
at 94.degree. C., 1 min at 55.degree. C. and 1 min at 72.degree. C.
for 30 cycles followed by a final extension period of 10 min at
72.degree. C. The PCR products were cut from acrylamide gel and
eluted in 100 ml of TE buffer. The diluted fragments were
reamplified with the same primers prior direct sequencing. The PCR
amplification products were cut from acrylamide gel and eluted in
100 ml of TE buffer. The diluted fragments were reamplified prior
to direct sequencing with both primers using the DyeDeoxy.TM.
Terminator Cycle Sequencing Kit protocol supplied by Applied
Biosystems, Inc. and analyzed on a ABI model 373A DNA automated
sequencer. Six sets of primers along the cDNA sequence were used to
amplify DNA products for sequence analysis.
Example 9
[0219] Computer-Assisted Analysis
[0220] Sequence homology analysis with both nucleotide and protein
sequences from 541C were performed using FASTA and BLAST through
the CITI2 French network (Dessen P., Fondrat C., Velencien C.,
Mugnoer C., 1990, CABIOS; 6:355-356).
Example 10
[0221] SSCP Analysis
[0222] For single strand conformation polymorphism (SSCP) analysis,
DNA from peripheral leukocytes (200 ng) was submitted to PCR
amplification using unlabelled primers (20 .mu.M) in 25 .mu.l
amplification mixture containing 200 .mu.M dNTPs, 1 unit of Taq
polymerase (Gibco-BRL) and 0.1 .mu.l of a .sup.32P dCTP (10 mCi/ml,
NEN). Amplified DNA was mixed with an equal volume of formamide
loaded dye (95% formamide, 20 mM EDTA, 0.05% bromophenol blue,
0.05% xylene cyanol). The samples (5 .mu.l) were denatured for 10
mn at 95.degree. C. and loaded onto a polyacrylamide gel (Hydroling
MED, Bioprobe) and electrophoresed at 4.degree. C. for 18 to 24
hours at 4 W. Gels were transferred onto 3 MM Whatman paper, dried
and autoradiographed with Kodak X-OMAT films for 24 hours. To
amplify the DNA sequence containing the divergence of exon 7
oligonucleotides R111 (5' AGACTATCAACTTAATTTCTGATCA 3') and 541C770
(5'.degree..degree.TAAGGAATGTGAGCACCTTCCTTC 3')--were used. To
amplify the DNA sequence containing the divergence of exon 8
oligonucleotides 541C960 (5' GTAATAACCAAATGCAATGTGAA 3') and
541C1120 (5' CTACAACACCCTTCTCACAG 3') were used.
Example 11
[0223] Cloning of the Human SMN Gene
[0224] Total yeast DNA from YAC clone 595C11 was purified via the
method of Sambrook et al supra and partially digested with
restriction enzyme Sau3A. DNA in the 12-23 kD size range was
excised after 0.5% sea plague GTG agarose gel electrophoresis and
precipitated with ethanol after .beta.-agarase digestion. After
partial fill-in of the Sau3A site, DNA was subcloned at the
partially filled XhoI site of bacteriophage FIXII (Stratagene).
[0225] The full-length BCD541 cDNA was used as a probe to screen
the FIXII phage library under conditions set forth in Sambrook et
al, supra.
[0226] These phages, named M-132, L-5 and L-13 spanned the entire
SMN gene as confirmed by restriction mapping using HindIII, EcoRI
and BgIII (see, FIG. 9) and Southern blot analysis.
[0227] The phages were then sequenced as described in Example 8.
Once the gene was sequenced, it was then cloned into a pUC18 vector
and recombinantly reproduced in large quantities that were purified
for further use.
Example 12
[0228] Cloning of the Mouse SMN Gene
[0229] A mouse fetal cDNA library was screened using the coding
sequence of the human SMN cDNA as a probe according to Sambrook et
al, supra.
[0230] Two overlapping mouse cDNA clones were found that had the
entire sequence of mouse SMN, as revealed by sequencing methods
described in Example 8 after being cloned into a pUC18 vector and
M13 vectors.
Example 13
[0231] Transgenic Mouse
[0232] Transgenic mice containing multiple normal SMN genes OR SMN
genes lacking exon 7 are produced by the methods according to Lee
et al, Neuron, 13:978-988 (1994). The transgenic animals are then
tested and selected for the overexpression of the SMN gene or SMN
gene lacking exon 7 via Southern, and/or Northern blots using the
probes described in the present invention or by screening with
antibodies described in the present invention in a Western
blot.
[0233] Transgenic mice containing abnormal SMN genes are obtained
by homologous recombination methods using mutated SMN genes as
described by Kuhn et al, Science, 269:1427-1429 (1995) and Bradley,
Current Opinion in Biotechnology, 2:823-829 (1991). The transgenic
animals are then tested and selected for the overexpression of the
SMN gene via Southern, and/or Northern blots using the probes
described in the present invention or by screening with antibodies
described in the present invention in a Western blot selected for
the abnormal SMN gene.
Example 14
[0234] Polyclonal Antibodies
[0235] 100 .mu.g of a synthetic antigen having sequence: [0236]
N-terminal G G V P E Q E D S V L F R R G T C-terminal was dissolved
in buffer and emulsified with an equal volume of Freund's complete
adjuvant. 0.5 ml of the emulsified synthetic antigen-adjuvant was
injected intramuscularly into a rabbit. Five weeks later, the
rabbit was boosted and 20-40 ml of blood was drawn 8 days after
each booster injection. The serum was then tested for the presence
of antigen using RIA.
[0237] Polyclonal antibodies were also prepared by the same methods
using the following sunthetic antigens: TABLE-US-00016 N- S R S P G
N K S D N I K P K C- terminal F R Q N Q K E G R C S H S L N
terminal
Example 15
[0238] Gene Therapy
[0239] Using the adenovirus construct described by Ragot et al,
Nature. Vol. 361 (1993), the normal SMN gene was inserted therein
and injected intramuscularly into a patient lacking this gene. The
patient is monitored using SSCP analysis as described in Example 10
above.
[0240] While the invention has been described in terms of various
preferred embodiments, the skilled artisan will appreciate that
various modifications, substitutions, omissions and changes may be
made without departing from the spine thereof. Accordingly, it is
intended that the scope of the present invention be limited solely
by the scope of the following claims, including equivalents
thereof. TABLE-US-00017 TABLE I Case 1 2 3 4 5 6 7 8 9 10 11 12*
Sex m f m m m m m m m f f f Age of death d 8 d 6 d 1 d 25 d 11 d 13
4 m >3 y >3 y d 20 >9 y >16 m Fetal movements + + - + -
- + - + - + + diminished Hypotonia + + + + + + + + + + + +
Respiratory + + + + + + + - + + - - Involvement Neurogenic (EMG) ?
+ + + + + nd + + + + + Muscle Atrophy (MB) + + + + + + + + + + + +
Contractures Hips - - - - - + - + - - + + Knees + + + + + + - + - -
+ + Ankles + - - + - - - + + + + + Elbows - + + + - - + + - - - -
Wrists - - + - + + + + - + - - Fingers - + - - + + - - - - - -
Associated Signs facial Ao. Co - - - - fract. - facial facial
facial - micro. micro. micro. micro. C212/C272 markers + + del del
+ del + + unlink + + + SMN gene del del del del del del + + + + + +
Abbreviations: +, present; -, absent; Ao. Co, aortic coartation;
Fract., bone fracture, Facial. microg, facial involvement with
micrognathia; nd, not done. *Both the child and her father were
affected.
[0241]
Sequence CWU 1
1
65 1 347 DNA Homo sapiens 1 aatttttaaa ttttttgtag agacagggtc
tcattatgtt gcccagggtg gtgtcaagct 60 ccaggtctca agtgatcccc
ctacctccgc ctcccaaagt tgtgggattg taggcatgag 120 ccactgcaag
aaaaccttaa ctgcagccta ataattgttt tctttgggat aacttttaaa 180
gtacattaaa agactatcaa cttaatttct gatcatattt tgttgaataa aataagtaaa
240 atgtcttgtg aacaaaatgc tttttaacat ccatataaag ctatctatat
atagctatct 300 atgtctatat agctattttt tttaacttcc ttttattttc cttacag
347 2 444 DNA Homo sapiens 2 gtaagtctgc cagcattatg aaagtgaatc
ttacttttgt aaaactttat ggtttgtgga 60 aaacaaatgt ttttgaacag
ttaaaaagtt cagatgttaa aaagttgaaa ggttaatgta 120 aaacaatcaa
tattaaagaa ttttgatgcc aaaactatta gataaaaggt taatctacat 180
ccctactaga attctcatac ttaactggtt ggttatgtgg aagaaacata ctttcacaat
240 aaagagcttt aggatatgat gccattttat atcactagta ggcagaccag
cagacttttt 300 tttattgtga tatgggataa cctaggcata ctgcactgta
cactctgaca tatgaagtgc 360 tctagtcaag tttaactggt gtccacagag
gacatggttt aactggaatt cgtcaagcct 420 ctggttctaa tttctcattt gcag 444
3 347 DNA Homo sapiens 3 aatttttaaa ttttttgtag agacagggtc
tcattatgtt gcccagggtg gtgtcaagct 60 ccaggtctca agtgatcccc
ctacctccgc ctcccaaagt tgtgggattg taggcatgag 120 ccactgcaag
aaaaccttaa ctgcagccta ataattgttt tctttgggat aacttttaaa 180
gtacattaaa agactatcaa cttaatttct gatcatattt tgttgaataa aataagtaaa
240 atgtcttgtg aacaaaatgc tttttaacat ccatataaag ctatctatat
atagctatct 300 atatctatat agctattttt tttaacttcc ttttattttc cttacag
347 4 444 DNA Homo sapiens 4 gtaagtctgc cagcattatg aaagtgaatc
ttacttttgt aaaactttat ggtttgtgga 60 aaacaaatgt ttttgaacag
ttaaaaagtt cagatgttag aaagttgaaa ggttaatgta 120 aaacaatcaa
tattaaagaa ttttgatgcc aaaactatta gataaaaggt taatctacat 180
ccctactaga attctcatac ttaactggtt ggttgtgtgg aagaaacata ctttcacaat
240 aaagagcttt aggatatgat gccattttat atcactagta ggcagaccag
cagacttttt 300 tttattgtga tatgggataa cctaggcata ctgcactgta
cactctgaca tatgaagtgc 360 tctagtcaag tttaactggt gtccacagag
gacatggttt aactggaatt cgtcaagcct 420 ctggttctaa tttctcattt gcag 444
5 25 DNA Artificial Sequence R111 primer/probe characteristic of
exon 8 of the T-BCD541 gene. 5 agactatcaa cttaatttct gatca 25 6 24
DNA Artificial Sequence 541C770 primer/probe characteristic of exon
8 of the T-BCD541 gene. 6 taaggaatgt gagcaccttc cttc 24 7 23 DNA
Artificial Sequence 541C960 primer/probe characteristic of exon 8
of the T-BCD541 gene. 7 gtaataacca aatgcaatgt gaa 23 8 20 DNA
Artificial Sequence 541C1120 primer/probe characteristic of exon 8
of the T-BCD541 gene. 8 ctacaacacc cttctcacag 20 9 294 PRT Homo
sapiens 9 Met Ala Met Ser Ser Gly Gly Ser Gly Gly Gly Val Pro Glu
Gln Glu 1 5 10 15 Asp Ser Val Leu Phe Arg Arg Gly Thr Gly Gln Ser
Asp Asp Ser Asp 20 25 30 Ile Trp Asp Asp Thr Ala Leu Ile Lys Ala
Tyr Asp Lys Ala Val Ala 35 40 45 Ser Phe Lys His Ala Leu Lys Asn
Gly Asp Ile Cys Glu Thr Ser Gly 50 55 60 Lys Pro Lys Thr Thr Pro
Lys Arg Lys Pro Ala Lys Lys Asn Lys Ser 65 70 75 80 Gln Lys Lys Asn
Thr Ala Ala Ser Leu Gln Gln Trp Lys Val Gly Asp 85 90 95 Lys Cys
Ser Ala Ile Trp Ser Glu Asp Gly Cys Ile Tyr Pro Ala Thr 100 105 110
Ile Ala Ser Ile Asp Phe Lys Arg Glu Thr Cys Val Val Val Tyr Thr 115
120 125 Gly Tyr Gly Asn Arg Glu Glu Gln Asn Leu Ser Asp Leu Leu Ser
Pro 130 135 140 Ile Cys Glu Val Ala Asn Asn Ile Glu Gln Asn Ala Gln
Glu Asn Glu 145 150 155 160 Asn Glu Ser Gln Val Ser Thr Asp Glu Ser
Glu Asn Ser Arg Ser Pro 165 170 175 Gly Asn Lys Ser Asp Asn Ile Lys
Pro Lys Ser Ala Pro Trp Asn Ser 180 185 190 Phe Leu Pro Pro Pro Pro
Pro Met Pro Gly Pro Arg Leu Gly Pro Gly 195 200 205 Lys Pro Gly Leu
Lys Phe Asn Gly Pro Pro Pro Pro Pro Pro Pro Pro 210 215 220 Pro Pro
His Leu Leu Ser Cys Trp Leu Pro Pro Phe Pro Ser Gly Pro 225 230 235
240 Pro Ile Ile Pro Pro Pro Pro Pro Ile Cys Pro Asp Ser Leu Asp Asp
245 250 255 Ala Asp Ala Leu Gly Ser Met Leu Ile Ser Trp Tyr Met Ser
Gly Tyr 260 265 270 His Thr Gly Tyr Tyr Met Gly Phe Arg Gln Asn Gln
Lys Glu Gly Arg 275 280 285 Cys Ser His Ser Leu Asn 290 10 1582 DNA
Homo sapiens 10 cggggcccca cgctgcgcac ccgcgggttt gctatggcga
tgagcagcgg cggcagtggt 60 ggcggcgtcc cggagcagga ggattccgtg
ctgttccggc gcggcacagg ccagagcgat 120 gattctgaca tttgggatga
tacagcactg ataaaagcat atgataaagc tgtggcttca 180 tttaagcatg
ctctaaagaa tggtgacatt tgtgaaactt cgggtaaacc aaaaaccaca 240
cctaaaagaa aacctgctaa gaagaataaa agccaaaaga agaatactgc agcttcctta
300 caacagtgga aagttgggga caaatgttct gccatttggt cagaagacgg
ttgcatttac 360 ccagctacca ttgcttcaat tgattttaag agagaaacct
gtgttgtggt ttacactgga 420 tatggaaata gagaggagca aaatctgtcc
gatctacttt ccccaatctg tgaagtagct 480 aataatatag aacagaatgc
tcaagagaat gaaaatgaaa gccaagtttc aacagatgaa 540 agtgagaact
ccaggtctcc tggaaataaa tcagataaca tcaagcccaa atctgctcca 600
tggaacccct ttctccctcc accacccccc atgccagggc caagactggg accaggaaag
660 ccaggtctaa aattcaatgg cccaccaccg ccaccgccac caccaccacc
ccacttacta 720 tcatgctggc tgcctccatt tccttctgga ccaccaataa
ttcccccacc acctcccata 780 tgtccagatt ctcttgatga tgctgatgct
ttgggaagta tgttaatttc atggtacatg 840 agtggctatc atactggcta
ttatatgggt tttagacaaa atcaaaaaga aggaaggtgc 900 tcacattcct
taaattaagg agaaatgctg gcatagagca gcactaaatg acaccactaa 960
agaaacgatc agacagatct ggaatgtgaa gcgttataga agataactgg cctcatttct
1020 tcaaaatatc aagtgttggg aaagaaaaaa ggaagtggaa tgggtaactc
ttcttgatta 1080 aaagttatgt aataaccaaa tgcaatgtga aatattttac
tggactcttt tgaaaaacca 1140 tctgtaaaag actgaggtgg gggtgggagg
ccagcacggt ggtgaggcag ttgagaaaat 1200 ttgaatgtgg attagatttt
gaatgatatt ggataattat tggtaatttt atggcctgtg 1260 agaagggtgt
tgtagtttat aaaagactgt cttaatttgc atacttaagc atttaggaat 1320
gaagtgttag agtgtcttaa aatgtttcaa atggtttaac aaaatgtatg tgaggcgtat
1380 gtggcaaaat gttacagaat ctaactggtg gacatggctg ttcattgtac
tgtttttttc 1440 tatcttctat atgtttaaaa gtatataata aaaatattta
attttttttt aaaaaaaaaa 1500 aaaaaaaaaa aaaaaaaaaa aaaaaaaaaa
aaaaaaaaaa aaaaaaaaaa aaaaaaaaaa 1560 aaaaaaaaaa aaaaaaaaaa aa 1582
11 1408 DNA Homo sapiens 11 aatttttaaa ttttttgtag agacagggtc
tcattatgtt gcccagggtg gtgtcaagct 60 ccaggtctca agtgatcccc
ctacctccgc ctcccaaagt tgtgggattg taggcatgag 120 ccactgcaag
aaaaccttaa ctgcagccta ataattgttt tctttgggat aacttttaaa 180
gtacattaaa agactatcaa cttaatttct gatcatattt tgttgaataa aataagtaaa
240 atgtcttgtg aacaaaatgc tttttaacat ccatataaag ctatctatat
atagctatct 300 atatctatat agctattttt tttaacttcc ttttattttc
cttacagggt tttagacaaa 360 atcaaaaaga aggaaggtgc tcacattcct
taaattaagg agtaagtctg ccagcattat 420 gaaagtgaat cttacttttg
taaaacttta tggtttgtgg aaaacaaatg tttttgaaca 480 gttaaaaagt
tcagatgtta gaaagttgaa aggttaatgt aaaacaatca atattaaaga 540
attttgatgc caaaactatt agataaaagg ttaatctaca tccctactag aattctcata
600 cttaactggt tggttgtgtg gaagaaacat actttcacaa taaagagctt
taggatatga 660 tgccatttta tatcactagt aggcagacca gcagactttt
ttttattgtg atatgggata 720 acctaggcat actgcactgt acactctgac
atatgaagtg ctctagtcaa gtttaactgg 780 tgtccacaga ggacatggtt
taactggaat tcgtcaagcc tctggttcta atttctcatt 840 tgcaggaaat
gctggcatag agcagcacta aatgacacca ctaaagaaac gatcagacag 900
atctggaatg tgaagcgtta tagaagataa ctggcctcat ttcttcaaaa tatcaagtgt
960 tgggaaagaa aaaaggaagt ggaatgggta actcttcttg attaaaagtt
atgtaataac 1020 caaatgcaat gtgaaatatt ttactggact cttttgaaaa
accatctgta aaagactgag 1080 gtgggggtgg gaggccagca cggtggtgag
gcagttgaga aaatttgaat gtggattaga 1140 ttttgaatga tattggataa
ttattggtaa ttttatggcc tgtgagaagg gtgttgtagt 1200 ttataaaaga
ctgtcttaat ttgcatactt aagcatttag gaatgaagtg ttagagtgtc 1260
ttaaaatgtt tcaaatggtt taacaaaatg tatgtgaggc gtatgtggca aaatgttaca
1320 gaatctaact ggtggacatg gctgttcatt gtactgtttt tttctatctt
ctatatgttt 1380 aaaagtatat aataaaaata tttaattt 1408 12 1582 DNA
Homo sapiens 12 cggggcccca cgctgcgcat ccgcgggttt gctatggcga
tgagcagcgg cggcagtggt 60 ggcggcgtcc cggagcagga ggattccgtg
ctgttccggc gcggcacagg ccagagcgat 120 gattctgaca tttgggatga
tacagcactg ataaaagcat atgataaagc tgtggcttca 180 tttaagcatg
ctctaaagaa tggtgacatt tgtgaaactt cgggtaaacc aaaaaccaca 240
cctaaaagaa aacctgctaa gaagaataaa agccaaaaga agaatactgc agcttcctta
300 caacagtgga aagttgggga caaatgttct gccatttggt cagaagacgg
ttgcatttac 360 ccagctacca ttgcttcaat tgattttaag agagaaacct
gtgttgtggt ttacactgga 420 tatggaaata gagaggagca aaatctgtcc
gatctacttt ccccaatctg tgaagtagct 480 aataatatag aacagaatgc
tcaagagaat gaaaatgaaa gccaagtttc aacagatgaa 540 agtgagaact
ccaggtctcc tggaaataaa tcagataaca tcaagcccaa atctgctcca 600
tggaactctt ttctccctcc accacccccc atgccagggc caagactggg accaggaaag
660 ccaggtctaa aattcaatgg cccaccaccg ccaccgccac caccaccacc
ccacttacta 720 tcatgctggc tgcctccatt tccttctgga ccaccaataa
ttcccccacc acctcccata 780 tgtccagatt ctcttgatga tgctgatgct
ttgggaagta tgttaatttc atggtacatg 840 agtggctatc atactggcta
ttatatgggt ttcagacaaa atcaaaaaga aggaaggtgc 900 tcacattcct
taaattaagg agaaatgctg gcatagagca gcactaaatg acaccactaa 960
agaaacgatc agacagatct ggaatgtgaa gcgttataga agataactgg cctcatttct
1020 tcaaaatatc aagtgttggg aaagaaaaaa ggaagtggaa tgggtaactc
ttcttgatta 1080 aaagttatgt aataaccaaa tgcaatgtga aatattttac
tggactcttt tgaaaaacca 1140 tctgtaaaag actggggtgg gggtgggagg
ccagcacggt ggtgaggcag ttgagaaaat 1200 ttgaatgtgg attagatttt
gaatgatatt ggataattat tggtaatttt atggcctgtg 1260 agaagggtgt
tgtagtttat aaaagactgt cttaatttgc atacttaagc atttaggaat 1320
gaagtgttag agtgtcttaa aatgtttcaa atggtttaac aaaatgtatg tgaggcgtat
1380 gtggcaaaat gttacagaat ctaactggtg gacatggctg ttcattgtac
tgtttttttc 1440 tatcttctat atgtttaaaa gtatataata aaaatattta
attttttttt aaaaaaaaaa 1500 aaaaaaaaaa aaaaaaaaaa aaaaaaaaaa
aaaaaaaaaa aaaaaaaaaa aaaaaaaaaa 1560 aaaaaaaaaa aaaaaaaaaa aa 1582
13 1408 DNA Homo sapiens 13 aatttttaaa ttttttgtag agacagggtc
tcattatgtt gcccagggtg gtgtcaagct 60 ccaggtctca agtgatcccc
ctacctccgc ctcccaaagt tgtgggattg taggcatgag 120 ccactgcaag
aaaaccttaa ctgcagccta ataattgttt tctttgggat aacttttaaa 180
gtacattaaa agactatcaa cttaatttct gatcatattt tgttgaataa aataagtaaa
240 atgtcttgtg aacaaaatgc tttttaacat ccatataaag ctatctatat
atagctatct 300 atgtctatat agctattttt tttaacttcc ttttattttc
cttacagggt ttcagacaaa 360 atcaaaaaga aggaaggtgc tcacattcct
taaattaagg agtaagtctg ccagcattat 420 gaaagtgaat cttacttttg
taaaacttta tggtttgtgg aaaacaaatg tttttgaaca 480 gttaaaaagt
tcagatgtta aaaagttgaa aggttaatgt aaaacaatca atattaaaga 540
attttgatgc caaaactatt agataaaagg ttaatctaca tccctactag aattctcata
600 cttaactggt tggttatgtg gaagaaacat actttcacaa taaagagctt
taggatatga 660 tgccatttta tatcactagt aggcagacca gcagactttt
ttttattgtg atatgggata 720 acctaggcat actgcactgt acactctgac
atatgaagtg ctctagtcaa gtttaactgg 780 tgtccacaga ggacatggtt
taactggaat tcgtcaagcc tctggttcta atttctcatt 840 tgcaggaaat
gctggcatag agcagcacta aatgacacca ctaaagaaac gatcagacag 900
atctggaatg tgaagcgtta tagaagataa ctggcctcat ttcttcaaaa tatcaagtgt
960 tgggaaagaa aaaaggaagt ggaatgggta actcttcttg attaaaagtt
atgtaataac 1020 caaatgcaat gtgaaatatt ttactggact cttttgaaaa
accatctgta aaagactggg 1080 gtgggggtgg gaggccagca cggtggtgag
gcagttgaga aaatttgaat gtggattaga 1140 ttttgaatga tattggataa
ttattggtaa ttttatggcc tgtgagaagg gtgttgtagt 1200 ttataaaaga
ctgtcttaat ttgcatactt aagcatttag gaatgaagtg ttagagtgtc 1260
ttaaaatgtt tcaaatggtt taacaaaatg tatgtgaggc gtatgtggca aaatgttaca
1320 gaatctaact ggtggacatg gctgttcatt gtactgtttt tttctatctt
ctatatgttt 1380 aaaagtatat aataaaaata tttaattt 1408 14 372 DNA
Artificial Sequence C212 marker nucleotide sequence. 14 acctganccc
aganggtcaa ggctgcagtg agacgagatt gcnccactgc cctccaccct 60
gggtgataag agtgggaccc tgtntcaaaa catacacaca cacacacaca cacacacaca
120 cacacacaca cacactctct ctctctctct ctctctctct ctctctctct
ctctctctca 180 aaaacacttg gtctgttatt tttncgaaat tgtcagtcat
agttatctgt tagaccaaag 240 ctgngtaagn acatttatta cattgcctcc
tacaacttca tcagctaatg tatttgctat 300 atagcaatta catatnggna
tatattatct tnaggggatg gccangtnat aaaactgtca 360 ctgaggaaag ga 372
15 294 DNA Artificial Sequence C272 marker nucleotide sequence. 15
cctcccacct nagcctcccc agtagctagg actataggcg tgcnccacca agctcagcta
60 tttttnntat ttagtagaga cggggtttcg gcangcttag gcctcgtntc
gaactccagt 120 gtgtgtgtgt gtgtgtgtgt gtgtgtgtgt gtgtgtgtgt
gtgtgtgtgt agatatttat 180 tccccctccc ccttggaaaa gtaagtaagc
tcctactagg aatttaaaac ctgcttgatc 240 tatataaaga caaacaagga
aagacaaaca tgggggcagg aaggaaggca gatc 294 16 141 DNA Artificial
Sequence C171 marker nucleotide sequence. 16 tcgaggtaga tttgtattat
atcccatgta cacacacaca cacacacaca cacacacaca 60 cacacacaga
cttaatctgt ttacagaaat aaaaggaata aaataccgtt tctactatac 120
accaaaacta gccatcttga c 141 17 305 DNA Artificial Sequence
AFM157xd10 marker nucleotide sequence. 17 ccctgagaag gcttcctcct
gagtatgcat aaacattcac agcttgcatg cgtgtgtgtg 60 tgtgtgtgtg
tgtgtatgtt tgcttgcact gtaaaaacaa ttgcaacatc aacagaaata 120
aaaattaaag gaataattct cctccgactc tgccgttcca tccagtgaaa ctcttcattc
180 tggggtaaag ttccttcagt tctttcatag ataggtatat acttcataag
tcaaacaatc 240 aggctgggtg cagtagctca tgcctgtaat cccagccctt
tgggaggccg agctgggcag 300 atcga 305 18 350 DNA Artificial Sequence
C161 marker nucleotide sequence. 18 tccacccgcc ttggcctccc
aaagcnctgg gattacaggc gtgactgccg cacccagctg 60 taaactggnt
tnntaatggt agattttnag gtattaacaa tagataaaaa gatacttttn 120
ggcatactgt gtattgggat ggggttagaa caggtgtnct acccaagaca tttacttaaa
180 atcgccctcg aaatgctatg tgagctgtgt gtgtgtgtgt gtgtgtgtgt
gtattaagga 240 aaagcatgaa agtatttatg cttgattttt ttttttnact
catagcttca tagtgganca 300 gatacatagt ctaaatcaaa atgtttaaac
tttttatgtc acttgctgtc 350 19 278 PRT Homo sapiens 19 Met Ala Met
Ser Ser Gly Gly Ser Gly Gly Gly Val Pro Glu Gln Glu 1 5 10 15 Asp
Ser Val Leu Phe Arg Arg Gly Thr Gly Gln Ser Asp Asp Ser Asp 20 25
30 Ile Trp Asp Asp Thr Ala Leu Ile Lys Ala Tyr Asp Lys Ala Val Ala
35 40 45 Ser Phe Lys His Ala Leu Lys Asn Gly Asp Ile Cys Glu Thr
Ser Gly 50 55 60 Lys Pro Lys Thr Thr Pro Lys Arg Lys Pro Ala Lys
Lys Asn Lys Ser 65 70 75 80 Gln Lys Lys Asn Thr Ala Ala Ser Leu Gln
Gln Trp Lys Val Gly Asp 85 90 95 Lys Cys Ser Ala Ile Trp Ser Glu
Asp Gly Cys Ile Tyr Pro Ala Thr 100 105 110 Ile Ala Ser Ile Asp Phe
Lys Arg Glu Thr Cys Val Val Val Tyr Thr 115 120 125 Gly Tyr Gly Asn
Arg Glu Glu Gln Asn Leu Ser Asp Leu Leu Ser Pro 130 135 140 Ile Cys
Glu Val Ala Asn Asn Ile Glu Gln Asn Ala Gln Glu Asn Glu 145 150 155
160 Asn Glu Ser Gln Val Ser Thr Asp Glu Ser Glu Asn Ser Arg Ser Pro
165 170 175 Gly Asn Lys Ser Asp Asn Ile Lys Pro Lys Ser Ala Pro Trp
Asn Ser 180 185 190 Phe Leu Pro Pro Pro Pro Pro Met Pro Gly Pro Arg
Leu Gly Pro Gly 195 200 205 Lys Pro Gly Leu Lys Phe Asn Gly Pro Pro
Pro Pro Pro Pro Pro Pro 210 215 220 Pro Pro His Leu Leu Ser Cys Trp
Leu Pro Pro Phe Pro Ser Gly Pro 225 230 235 240 Pro Ile Ile Pro Pro
Pro Pro Pro Ile Cys Pro Asp Ser Leu Asp Asp 245 250 255 Ala Asp Ala
Leu Gly Ser Met Leu Ile Ser Trp Tyr Met Ser Gly Tyr 260 265 270 His
Thr Gly Tyr Tyr Met 275 20 885 DNA Homo sapiens CDS (18)..(881) 20
cggcgtggta gcaggcc atg gcg atg ggc agt ggc gga gcg ggc tcc gag 50
Met Ala Met Gly Ser Gly Gly Ala Gly Ser Glu 1 5 10 cag gaa gat acg
gtg ctg ttc cgg cgt ggc acc ggc cag agt gat gat 98 Gln Glu Asp Thr
Val Leu Phe Arg Arg Gly Thr Gly Gln Ser Asp Asp 15 20 25 tct gac
att tgg gat gat aca gca ttg ata aaa gct tat gat aaa gct 146 Ser Asp
Ile Trp Asp Asp Thr Ala Leu Ile Lys Ala Tyr Asp Lys Ala 30 35 40
gtg gct tcc ttt aag cat gct cta aag aac ggt gac att tgt gaa act 194
Val Ala Ser Phe Lys His Ala Leu Lys Asn Gly Asp Ile Cys Glu Thr 45
50 55 cca gat aag cca aaa ggc aca gcc aga aga aaa cct gcc aag aag
aat 242 Pro Asp Lys Pro Lys Gly Thr Ala Arg Arg Lys Pro Ala Lys Lys
Asn 60 65 70 75 aaa agc caa aag aag aat gcc aca act ccc ttg aaa cag
tgg aaa gtt 290 Lys Ser Gln Lys Lys Asn Ala Thr Thr Pro Leu Lys Gln
Trp Lys Val 80 85
90 ggt gac aag tgt tct gct gtt tgg tca gaa gac ggc tgc att tac cca
338 Gly Asp Lys Cys Ser Ala Val Trp Ser Glu Asp Gly Cys Ile Tyr Pro
95 100 105 gct act att acg tcc att gac ttt aag aga gaa acc tgt gtc
gtg gtt 386 Ala Thr Ile Thr Ser Ile Asp Phe Lys Arg Glu Thr Cys Val
Val Val 110 115 120 tat act gga tat gga aac aga gag gag caa aac tta
tct gac cta ctt 434 Tyr Thr Gly Tyr Gly Asn Arg Glu Glu Gln Asn Leu
Ser Asp Leu Leu 125 130 135 tcc ccg acc tgt gaa gta gct aat agt aca
gaa cag aac act cag gag 482 Ser Pro Thr Cys Glu Val Ala Asn Ser Thr
Glu Gln Asn Thr Gln Glu 140 145 150 155 aat gaa agt caa gtt tcc aca
gac gac agt gaa cac tcc tcc aga tcg 530 Asn Glu Ser Gln Val Ser Thr
Asp Asp Ser Glu His Ser Ser Arg Ser 160 165 170 ctc aga agt aaa gca
cac agc aag tcc aaa gct gct ccg tgg acc tca 578 Leu Arg Ser Lys Ala
His Ser Lys Ser Lys Ala Ala Pro Trp Thr Ser 175 180 185 ttt ctt cct
cca cca ccc cca atg cca ggg tca gga tta gga cca gga 626 Phe Leu Pro
Pro Pro Pro Pro Met Pro Gly Ser Gly Leu Gly Pro Gly 190 195 200 aag
cca ggt cta aaa ttc aac ggc ccg ccg ccg ccg cct cca cta ccc 674 Lys
Pro Gly Leu Lys Phe Asn Gly Pro Pro Pro Pro Pro Pro Leu Pro 205 210
215 cct ccc ccc ttc ctg ccg tgc tgg atg ccc ccg ttc cct tca gga cca
722 Pro Pro Pro Phe Leu Pro Cys Trp Met Pro Pro Phe Pro Ser Gly Pro
220 225 230 235 cca ata atc ccg cca ccc cct ccc atc tct ccc gac tgt
ctg gat gac 770 Pro Ile Ile Pro Pro Pro Pro Pro Ile Ser Pro Asp Cys
Leu Asp Asp 240 245 250 act gat gcc ctg ggc agt atg cta atc tct tgg
tac atg agt ggc tac 818 Thr Asp Ala Leu Gly Ser Met Leu Ile Ser Trp
Tyr Met Ser Gly Tyr 255 260 265 cac act ggc tac tat atg ggt ttc aga
caa aat aaa aaa gaa gga aag 866 His Thr Gly Tyr Tyr Met Gly Phe Arg
Gln Asn Lys Lys Glu Gly Lys 270 275 280 tgc tca cat aca aat taag
885 Cys Ser His Thr Asn 285 21 288 PRT Homo sapiens 21 Met Ala Met
Gly Ser Gly Gly Ala Gly Ser Glu Gln Glu Asp Thr Val 1 5 10 15 Leu
Phe Arg Arg Gly Thr Gly Gln Ser Asp Asp Ser Asp Ile Trp Asp 20 25
30 Asp Thr Ala Leu Ile Lys Ala Tyr Asp Lys Ala Val Ala Ser Phe Lys
35 40 45 His Ala Leu Lys Asn Gly Asp Ile Cys Glu Thr Pro Asp Lys
Pro Lys 50 55 60 Gly Thr Ala Arg Arg Lys Pro Ala Lys Lys Asn Lys
Ser Gln Lys Lys 65 70 75 80 Asn Ala Thr Thr Pro Leu Lys Gln Trp Lys
Val Gly Asp Lys Cys Ser 85 90 95 Ala Val Trp Ser Glu Asp Gly Cys
Ile Tyr Pro Ala Thr Ile Thr Ser 100 105 110 Ile Asp Phe Lys Arg Glu
Thr Cys Val Val Val Tyr Thr Gly Tyr Gly 115 120 125 Asn Arg Glu Glu
Gln Asn Leu Ser Asp Leu Leu Ser Pro Thr Cys Glu 130 135 140 Val Ala
Asn Ser Thr Glu Gln Asn Thr Gln Glu Asn Glu Ser Gln Val 145 150 155
160 Ser Thr Asp Asp Ser Glu His Ser Ser Arg Ser Leu Arg Ser Lys Ala
165 170 175 His Ser Lys Ser Lys Ala Ala Pro Trp Thr Ser Phe Leu Pro
Pro Pro 180 185 190 Pro Pro Met Pro Gly Ser Gly Leu Gly Pro Gly Lys
Pro Gly Leu Lys 195 200 205 Phe Asn Gly Pro Pro Pro Pro Pro Pro Leu
Pro Pro Pro Pro Phe Leu 210 215 220 Pro Cys Trp Met Pro Pro Phe Pro
Ser Gly Pro Pro Ile Ile Pro Pro 225 230 235 240 Pro Pro Pro Ile Ser
Pro Asp Cys Leu Asp Asp Thr Asp Ala Leu Gly 245 250 255 Ser Met Leu
Ile Ser Trp Tyr Met Ser Gly Tyr His Thr Gly Tyr Tyr 260 265 270 Met
Gly Phe Arg Gln Asn Lys Lys Glu Gly Lys Cys Ser His Thr Asn 275 280
285 22 3271 DNA Homo sapiens CDS (104)..(184) misc_feature
(330)..(330) n is a, c, g, or t 22 cctcccgggc accgtactgt tccgctccca
gaagccccgg gcgccggaag tcgtcactct 60 taagaaggga cggggcccca
cgctgcgcac ccgcgggttt gct atg gcg atg agc 115 Met Ala Met Ser 1 agc
ggc ggc agt ggt ggc ggc gtc ccg gag cag gag gat tcc gtg ctg 163 Ser
Gly Gly Ser Gly Gly Gly Val Pro Glu Gln Glu Asp Ser Val Leu 5 10 15
20 ttc cgg cgc ggc aca ggc cag gtgaggtcgc agccagtgca gtctccctat 214
Phe Arg Arg Gly Thr Gly Gln 25 tagcgctctc agcacccttc ttccggccca
actctccttc cgcagtgtaa ttttgttatg 274 tgtggattaa gatgactctt
ggtactaaca tacattttct gattaaacct atctgnacat 334 gagttgtttt
tatttcttac cctttccag agc gat gat tct gac att tgg gat 387 Ser Asp
Asp Ser Asp Ile Trp Asp 30 35 gat aca gca ctg ata aaa gca tat gat
aaa gct gtg gct tca ttt aag 435 Asp Thr Ala Leu Ile Lys Ala Tyr Asp
Lys Ala Val Ala Ser Phe Lys 40 45 50 gtatgaaatg cttgnttagt
cgttttctta ttttctcgtt attcatttgg aaaggaattg 495 ataacatacg
ataaagtgtt aaaggtgctt tctgaggtga cggagccttg agactagctt 555
atagtagtaa ctgggttatg tcgtgacttt tattctgtgc accaccctgt aacatgtaca
615 tttttattcc tattttcgta g cat gct cta aag aat ggt gac att tgt gaa
666 His Ala Leu Lys Asn Gly Asp Ile Cys Glu 55 60 act tcg ggt aaa
cca aaa acc aca cct aaa aga aaa cct gct aag aag 714 Thr Ser Gly Lys
Pro Lys Thr Thr Pro Lys Arg Lys Pro Ala Lys Lys 65 70 75 aat aaa
agc caa aag aag aat act gca gct tcc tta caa cag 756 Asn Lys Ser Gln
Lys Lys Asn Thr Ala Ala Ser Leu Gln Gln 80 85 90 gttattttaa
aatgttgagg atttaacttc aaaggatgtc tcattagtcc ttatttaata 816
gtgtaaaatg tctttaactg cctgcaggtc gatcaaaacg agatgatagt ttgccctctt
876 caaaagaaat gtgtgcatgt atatatcttt gatttctttt gtag tgg aaa gtt
ggg 932 Trp Lys Val Gly 95 gac aaa tgt tct gcc att tgg tca gaa gac
ggt tgc att tac cca gct 980 Asp Lys Cys Ser Ala Ile Trp Ser Glu Asp
Gly Cys Ile Tyr Pro Ala 100 105 110 acc att gct tca att gat ttt aag
aga gaa acc tgt gtt gtg gtt tac 1028 Thr Ile Ala Ser Ile Asp Phe
Lys Arg Glu Thr Cys Val Val Val Tyr 115 120 125 act gga tat gga aat
aga gag gag caa aat ctg tcc gat cta ctt tcc 1076 Thr Gly Tyr Gly
Asn Arg Glu Glu Gln Asn Leu Ser Asp Leu Leu Ser 130 135 140 cca atc
tgt gaa gta gct aat aat ata gaa cag aat gct caa gag 1121 Pro Ile
Cys Glu Val Ala Asn Asn Ile Glu Gln Asn Ala Gln Glu 145 150 155
gtaaggatac aaaaaaaaaa aaattcaatt tctggaagca gagactagat gagaaactgt
1181 taaacagtat acaccaccga ggcattaatt ttttcttaat cacaccctta
taacaaaaac 1241 ctgcatattt tttcttttta aag aat gaa aat gaa agc caa
gtt tca aca gat 1294 Asn Glu Asn Glu Ser Gln Val Ser Thr Asp 160
165 gaa agt gag aac tcc agg tct cct gga aat aaa tca gat aac atc aag
1342 Glu Ser Glu Asn Ser Arg Ser Pro Gly Asn Lys Ser Asp Asn Ile
Lys 170 175 180 ccc aaa tct gct cca tgg aac tct ttt ctc cct cca cca
ccc ccc atg 1390 Pro Lys Ser Ala Pro Trp Asn Ser Phe Leu Pro Pro
Pro Pro Pro Met 185 190 195 200 cca ggg cca aga ctg gga cca gga aag
gtaaaccttc tatgaaagtt 1437 Pro Gly Pro Arg Leu Gly Pro Gly Lys 205
ttccagaaaa tagttaatgt cgggacattt aacctctctg ttaactaatt tgtagctctc
1497 ccacaaatat tctgggtaat tatttttatc cttttggttt tgagtccttt
ttattcctat 1557 catattgaaa ttggtaagtt aattttcctt tgaaatattc cttatag
cca ggt cta 1613 Pro Gly Leu 210 aaa ttc aat ggc cca cca ccg cca
ccg cca cca cca cca ccc cac tta 1661 Lys Phe Asn Gly Pro Pro Pro
Pro Pro Pro Pro Pro Pro Pro His Leu 215 220 225 cta tca tgc tgg ctg
cct cca ttt cct tct gga cca cca gtaagtaaaa 1710 Leu Ser Cys Trp Leu
Pro Pro Phe Pro Ser Gly Pro Pro 230 235 240 aagagtatag gttagatttt
gctttcacat acaatttgat aattaccaga ctttactttt 1770 tgtttactgg
atataaacaa tatctttttc tgtctccag ata att ccc cca cca 1824 Ile Ile
Pro Pro Pro 245 cct ccc ata tgt cca gat tct ctt gat gat gct gat gct
ttg gga agt 1872 Pro Pro Ile Cys Pro Asp Ser Leu Asp Asp Ala Asp
Ala Leu Gly Ser 250 255 260 atg tta att tca tgg tac atg agt ggc tat
cat act ggc tat tat atg 1920 Met Leu Ile Ser Trp Tyr Met Ser Gly
Tyr His Thr Gly Tyr Tyr Met 265 270 275 gtaagtaatc actcagcatc
ttttcctgac aatttttttg tagttatgtg actttgtttg 1980 gtaaatttat
aaaatactac ttgaactgca gcctaataat tgttttcttt gggataactt 2040
ttaaagtaca ttaaaagact atcaacttaa tttctgatca tattttgttg aataaaataa
2100 gtaaaatgtc ttgtgaaaca aaatgctttt taacatccat ataaagctat
ctatatatag 2160 ctatctatgt ctatatagct atttttttta acttcctttt
attttcctta cag ggt 2216 Gly ttc aga caa aat caa aaa gaa gga agg tgc
tca cat tcc tta aat 2261 Phe Arg Gln Asn Gln Lys Glu Gly Arg Cys
Ser His Ser Leu Asn 280 285 290 taaggagtaa gtctgccagc attatgaaag
tgaatcttac ttttgtaaaa ctttatggtt 2321 tgtggaaaac aaatgttttt
gaacagttaa aaagttcaga tgttaaaaag ttgaaaggtt 2381 aatgtaaaac
aatcaatatt aaagaatttt gatgccaaaa ctattagata aaaggttaat 2441
ctacatccct actagaattc tcatacttaa ctggttggtt atgtggaaga aacatacttt
2501 cacaataaag agctttagga tatgatgcca ttttatatca ctagtaggca
gaccagcaga 2561 ctttttttta ttgtgatatg ggataaccta ggcatactgc
actgtacact ctgacatatg 2621 aagtgctcta gtcaagttta actggtgtcc
acagaggaca tggtttaact ggaattcgtc 2681 aagcctctgg ttctaatttc
tcatttgcag gaaatgctgg catagagcag cactaaatga 2741 caccactaaa
gaaacgatca gacagatctg gaatgtgaag cgttatagaa gataactggc 2801
ctcatttctt caaaatatca agtgttggga aagaaaaaag gaagtggaat gggtaactct
2861 tcttgattaa aagttatgta ataaccaaat gcaatgtgaa atattttact
ggactctttt 2921 gaaaaaccat ctagtaaaag actggggtgg gggtgggagg
ccagcacggt ggtgaggcag 2981 ttgagaaaat ttgaatgtgg attagatttt
gaatgatatt ggataattat tggtaatttt 3041 atggcctgtg agaagggtgt
tgtagtttat aaaagactgt cttaatttgc atacttaagc 3101 atttaggaat
gaagtgttag agtgtcttaa aatgtttcaa atggtttaac aaaatgtatg 3161
tgaggcgtat gtggcaaaat gttacagaat ctaactggtg gacatggctg ttcattgtac
3221 tgtttttttc tatcttctat atgtttaaaa gtatataata aaaatattta 3271 23
637 DNA Homo sapiens 23 gatctgcctt ccttcctgcc cccatgtttg tctttccttg
tttgtcttta tatagatcaa 60 gcaggtttta aattcctagt aggagcttac
atttactttt ccaaggggga gggggaataa 120 atatctacac acacacacac
acacacacca cactggagtt cgagacgagg cctaagcaac 180 atgccgaaac
cccgtctcta ctaaatacaa aaaatagctg agcttggtgg cgcacgccta 240
tagtcctagc tactggggag gctgaggtgg gaggatcgct tgagcccaag aagtcgaggc
300 tgcagtgagc cgagatcgcg ccgctgcact ccagcctgag cgacagggcg
aggctctgtc 360 tcaaaacaaa caaacaaaaa aaaaaaggaa aggaaatata
acacagtgaa atgaaaggat 420 tgagagaaat gaaaaatata cacgccacaa
atgtgggagg gcgataacca ctcgtagaaa 480 gcgtgagaag ttactacaag
cggtcctccc gggcaccgta ctgttccgct cccagaagcc 540 ccgggcgccg
gaagtcgtca ctcttaagaa gggacggggc cccacgctgc gcacccgcgg 600
gtttgctatg gcgatgagca gcggcggcag tggtggc 637 24 19 DNA Homo sapiens
24 agggcgaggc tctgtctca 19 25 19 DNA Homo sapiens 25 cgggaggacc
gcttgtagt 19 26 19 DNA Homo sapiens 26 gccggaagtc gtcactctt 19 27
20 DNA Homo sapiens 27 gggtgctgag agcgctaata 20 28 20 DNA Homo
sapiens 28 tgtgtggatt aagatgactc 20 29 19 DNA Homo sapiens 29
cactttatcg tatgttatc 19 30 22 DNA Homo sapiens 30 ctgtgcacca
ccctgtaaca tg 22 31 19 DNA Homo sapiens 31 aaggactaat gagacatcc 19
32 20 DNA Homo sapiens 32 cgagatgata gtttgccctc 20 33 24 DNA Homo
sapiens 33 agctacttca cagattgggg aaag 24 34 20 DNA Homo sapiens 34
ctcatctagt ctctgcttcc 20 35 24 DNA Homo sapiens 35 tggatatgga
aatagagagg gagc 24 36 22 DNA Homo sapiens 36 cacccttata acaaaaacct
gc 22 37 23 DNA Homo sapiens 37 gagaaaggag ttccatggag cag 23 38 20
DNA Homo sapiens 38 gagaggttaa atgtcccgac 20 39 22 DNA Homo sapiens
39 gtgagaactc caggtctcct gg 22 40 20 DNA Homo sapiens 40 tgagtctgtt
tgacttcagg 20 41 22 DNA Homo sapiens 41 gaaggaaatg gaggcagcca gc 22
42 21 DNA Homo sapiens 42 tttctaccca ttagaatctg g 21 43 24 DNA Homo
sapiens 43 ccccacttac tatcatgctg gctg 24 44 24 DNA Homo sapiens 44
ccagacttta ctttttgttt actg 24 45 21 DNA Homo sapiens 45 atagccactc
atgtaccatg a 21 46 24 DNA Homo sapiens 46 aagagtaatt taagcctcag
acag 24 47 24 DNA Homo sapiens 47 ctcccatatg tccagattct cttg 24 48
25 DNA Homo sapiens 48 agactatcaa cttaatttct gatca 25 49 24 DNA
Homo sapiens 49 taaggaatgt gagcaccttc cttc 24 50 25 DNA Homo
sapiens 50 agactatcaa cttaatttct gatca 25 51 24 DNA Homo sapiens 51
gtaagattca ctttcataat gctg 24 52 21 DNA Homo sapiens 52 ctttatggtt
tgtggaaaac a 21 53 20 DNA Homo sapiens 53 ggcatcatat cctaaagctc 20
54 23 DNA Homo sapiens 54 gtaataacca aatgcaatgt gaa 23 55 20 DNA
Homo sapiens 55 ctacaacacc cttctcacag 20 56 20 DNA Homo sapiens 56
ggtgtccaca gaggacatgg 20 57 24 DNA Homo sapiens 57 aagagttaac
ccattccagc ttcc 24 58 27 PRT Homo sapiens 58 Met Ala Met Ser Ser
Gly Gly Ser Gly Gly Gly Val Pro Glu Gln Glu 1 5 10 15 Asp Ser Val
Leu Phe Arg Arg Gly Thr Gly Gln 20 25 59 24 PRT Homo sapiens 59 Ser
Asp Asp Ser Asp Ile Trp Asp Asp Thr Ala Leu Ile Lys Ala Tyr 1 5 10
15 Asp Lys Ala Val Ala Ser Phe Lys 20 60 40 PRT Homo sapiens 60 His
Ala Leu Lys Asn Gly Asp Ile Cys Glu Thr Ser Gly Lys Pro Lys 1 5 10
15 Thr Thr Pro Lys Arg Lys Pro Ala Lys Lys Asn Lys Ser Gln Lys Lys
20 25 30 Asn Thr Ala Ala Ser Leu Gln Gln 35 40 61 67 PRT Homo
sapiens 61 Trp Lys Val Gly Asp Lys Cys Ser Ala Ile Trp Ser Glu Asp
Gly Cys 1 5 10 15 Ile Tyr Pro Ala Thr Ile Ala Ser Ile Asp Phe Lys
Arg Glu Thr Cys 20 25 30 Val Val Val Tyr Thr Gly Tyr Gly Asn Arg
Glu Glu Gln Asn Leu Ser 35 40 45 Asp Leu Leu Ser Pro Ile Cys Glu
Val Ala Asn Asn Ile Glu Gln Asn 50 55 60 Ala Gln Glu 65 62 51 PRT
Homo sapiens 62 Asn Glu Asn Glu Ser Gln Val Ser Thr Asp Glu Ser Glu
Asn Ser Arg 1 5 10 15 Ser Pro Gly Asn Lys Ser Asp Asn Ile Lys Pro
Lys Ser Ala Pro Trp 20 25 30 Asn Ser Phe Leu Pro Pro Pro Pro Pro
Met Pro Gly Pro Arg Leu Gly 35 40 45 Pro Gly Lys 50 63 32 PRT Homo
sapiens 63 Pro Gly Leu Lys Phe Asn Gly Pro Pro Pro Pro Pro Pro Pro
Pro Pro 1 5 10 15 Pro His Leu Leu Ser Cys Trp Leu Pro Pro Phe Pro
Ser Gly Pro Pro 20 25 30 64 37 PRT Homo sapiens 64 Ile Ile Pro Pro
Pro Pro Pro Ile Cys Pro Asp Ser Leu Asp Asp Ala 1 5 10 15 Asp Ala
Leu Gly Ser Met Leu Ile Ser Trp Tyr Met Ser Gly Tyr His 20 25 30
Thr Gly Tyr Tyr Met 35 65 16 PRT Homo
sapiens 65 Gly Phe Arg Gln Asn Gln Lys Glu Gly Arg Cys Ser His Ser
Leu Asn 1 5 10 15
* * * * *