rs772521985

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4BP6BS1BS2

The NM_000093.5(COL5A1):​c.3292G>A​(p.Ala1098Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000124 in 1,550,494 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1098S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00057 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000076 ( 1 hom. )

Consequence

COL5A1
NM_000093.5 missense

Scores

2
11
5

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:3

Conservation

PhyloP100: 7.87

Publications

5 publications found
Variant links:
Genes affected
COL5A1 (HGNC:2209): (collagen type V alpha 1 chain) This gene encodes an alpha chain for one of the low abundance fibrillar collagens. Fibrillar collagen molecules are trimers that can be composed of one or more types of alpha chains. Type V collagen is found in tissues containing type I collagen and appears to regulate the assembly of heterotypic fibers composed of both type I and type V collagen. This gene product is closely related to type XI collagen and it is possible that the collagen chains of types V and XI constitute a single collagen type with tissue-specific chain combinations. The encoded procollagen protein occurs commonly as the heterotrimer pro-alpha1(V)-pro-alpha1(V)-pro-alpha2(V). Mutations in this gene are associated with Ehlers-Danlos syndrome, types I and II. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, May 2013]
COL5A1 Gene-Disease associations (from GenCC):
  • Ehlers-Danlos syndrome
    Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
  • Ehlers-Danlos syndrome, classic type
    Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Ambry Genetics, PanelApp Australia, Genomics England PanelApp
  • Ehlers-Danlos syndrome, classic type, 1
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • arterial disorder
    Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.3194674).
BP6
Variant 9-134806222-G-A is Benign according to our data. Variant chr9-134806222-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 212960.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.000572 (87/152090) while in subpopulation AFR AF = 0.00196 (81/41398). AF 95% confidence interval is 0.00161. There are 0 homozygotes in GnomAd4. There are 38 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High AC in GnomAd4 at 87 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000093.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COL5A1
NM_000093.5
MANE Select
c.3292G>Ap.Ala1098Thr
missense
Exon 42 of 66NP_000084.3
COL5A1
NM_001278074.1
c.3292G>Ap.Ala1098Thr
missense
Exon 42 of 66NP_001265003.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COL5A1
ENST00000371817.8
TSL:1 MANE Select
c.3292G>Ap.Ala1098Thr
missense
Exon 42 of 66ENSP00000360882.3
COL5A1
ENST00000371820.4
TSL:2
c.3292G>Ap.Ala1098Thr
missense
Exon 42 of 66ENSP00000360885.4
COL5A1
ENST00000950240.1
c.3283G>Ap.Ala1095Thr
missense
Exon 42 of 66ENSP00000620299.1

Frequencies

GnomAD3 genomes
AF:
0.000572
AC:
87
AN:
152090
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00196
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00143
GnomAD2 exomes
AF:
0.000129
AC:
20
AN:
155288
AF XY:
0.000110
show subpopulations
Gnomad AFR exome
AF:
0.00115
Gnomad AMR exome
AF:
0.000162
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000177
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000336
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000758
AC:
106
AN:
1398404
Hom.:
1
Cov.:
31
AF XY:
0.0000638
AC XY:
44
AN XY:
689752
show subpopulations
African (AFR)
AF:
0.00215
AC:
68
AN:
31588
American (AMR)
AF:
0.000112
AC:
4
AN:
35694
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25168
East Asian (EAS)
AF:
0.0000560
AC:
2
AN:
35738
South Asian (SAS)
AF:
0.0000631
AC:
5
AN:
79214
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
48778
Middle Eastern (MID)
AF:
0.000185
AC:
1
AN:
5400
European-Non Finnish (NFE)
AF:
0.00000649
AC:
7
AN:
1078882
Other (OTH)
AF:
0.000328
AC:
19
AN:
57942
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.470
Heterozygous variant carriers
0
6
12
17
23
29
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000572
AC:
87
AN:
152090
Hom.:
0
Cov.:
33
AF XY:
0.000512
AC XY:
38
AN XY:
74280
show subpopulations
African (AFR)
AF:
0.00196
AC:
81
AN:
41398
American (AMR)
AF:
0.000131
AC:
2
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
67988
Other (OTH)
AF:
0.00143
AC:
3
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.516
Heterozygous variant carriers
0
4
9
13
18
22
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000274
Hom.:
0
Bravo
AF:
0.000601
ExAC
AF:
0.0000550
AC:
2

ClinVar

ClinVar submissions as Germline
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Ehlers-Danlos syndrome, classic type (2)
-
1
1
Ehlers-Danlos syndrome, classic type, 1 (2)
-
1
-
Connective tissue disorder (1)
-
1
-
Ehlers-Danlos syndrome, classic type, 1;C5543412:Fibromuscular dysplasia, multifocal (1)
-
-
1
Familial thoracic aortic aneurysm and aortic dissection (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.11
T
BayesDel_noAF
Uncertain
0.060
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.58
D
Eigen
Uncertain
0.49
Eigen_PC
Uncertain
0.44
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.96
D
M_CAP
Uncertain
0.24
D
MetaRNN
Benign
0.32
T
MetaSVM
Pathogenic
0.83
D
MutationAssessor
Benign
1.0
L
PhyloP100
7.9
PrimateAI
Uncertain
0.79
T
PROVEAN
Uncertain
-3.1
D
REVEL
Uncertain
0.55
Sift
Uncertain
0.022
D
Sift4G
Benign
0.10
T
Polyphen
1.0
D
Vest4
0.41
MVP
0.83
MPC
0.52
ClinPred
0.073
T
GERP RS
5.2
Varity_R
0.29
gMVP
0.12
Mutation Taster
=36/64
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs772521985; hg19: chr9-137698068; API