rs775697182

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_000393.5(COL5A2):​c.3975A>T​(p.Lys1325Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,446 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. K1325K) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

COL5A2
NM_000393.5 missense

Scores

2
13
4

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.25

Publications

0 publications found
Variant links:
Genes affected
COL5A2 (HGNC:2210): (collagen type V alpha 2 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. Mutations in this gene are associated with Ehlers-Danlos syndrome, types I and II. [provided by RefSeq, Jul 2008]
COL5A2 Gene-Disease associations (from GenCC):
  • Ehlers-Danlos syndrome
    Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
  • Ehlers-Danlos syndrome, classic type
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • Ehlers-Danlos syndrome, classic type, 2
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
COL5A2NM_000393.5 linkc.3975A>T p.Lys1325Asn missense_variant Exon 52 of 54 ENST00000374866.9 NP_000384.2 P05997
COL5A2XM_011510573.4 linkc.3837A>T p.Lys1279Asn missense_variant Exon 55 of 57 XP_011508875.1
COL5A2XM_047443251.1 linkc.3837A>T p.Lys1279Asn missense_variant Exon 57 of 59 XP_047299207.1
COL5A2XM_047443252.1 linkc.3837A>T p.Lys1279Asn missense_variant Exon 56 of 58 XP_047299208.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
COL5A2ENST00000374866.9 linkc.3975A>T p.Lys1325Asn missense_variant Exon 52 of 54 1 NM_000393.5 ENSP00000364000.3 P05997
COL5A2ENST00000618828.1 linkc.2814A>T p.Lys938Asn missense_variant Exon 45 of 47 5 ENSP00000482184.1 A0A087WYX9

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000399
AC:
1
AN:
250746
AF XY:
0.00000738
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461446
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727020
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33472
American (AMR)
AF:
0.00
AC:
0
AN:
44700
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26122
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39666
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86222
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53394
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111724
Other (OTH)
AF:
0.00
AC:
0
AN:
60378
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.61
BayesDel_addAF
Benign
-0.048
T
BayesDel_noAF
Benign
-0.21
CADD
Benign
23
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.63
D;T;D
Eigen
Uncertain
0.61
Eigen_PC
Uncertain
0.57
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.92
.;D;D
M_CAP
Benign
0.037
D
MetaRNN
Uncertain
0.54
D;D;D
MetaSVM
Uncertain
0.16
D
MutationAssessor
Pathogenic
3.5
M;.;M
PhyloP100
1.3
PrimateAI
Uncertain
0.62
T
PROVEAN
Uncertain
-3.2
D;.;.
REVEL
Uncertain
0.61
Sift
Uncertain
0.021
D;.;.
Sift4G
Uncertain
0.0030
D;D;.
Polyphen
1.0
D;.;D
Vest4
0.57
MutPred
0.56
Loss of methylation at K1325 (P = 0.0057);.;Loss of methylation at K1325 (P = 0.0057);
MVP
0.83
MPC
0.30
ClinPred
0.97
D
GERP RS
5.4
Varity_R
0.55
gMVP
0.82
Mutation Taster
=35/65
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs775697182; hg19: chr2-189901480; API