rs759604513

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_000393.5(COL5A2):c.284T>A(p.Val95Asp) variant causes a missense change. The variant allele was found at a frequency of 0.00000929 in 1,614,018 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

COL5A2
NM_000393.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 3.84

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAdExome4 at 13 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COL5A2	NM_000393.5 link	c.284T>A	p.Val95Asp	missense_variant	Exon 2 of 54	ENST00000374866.9	NP_000384.2	P05997
COL5A2	XM_011510573.4 link	c.146T>A	p.Val49Asp	missense_variant	Exon 5 of 57		XP_011508875.1
COL5A2	XM_047443251.1 link	c.146T>A	p.Val49Asp	missense_variant	Exon 7 of 59		XP_047299207.1
COL5A2	XM_047443252.1 link	c.146T>A	p.Val49Asp	missense_variant	Exon 6 of 58		XP_047299208.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
COL5A2	ENST00000374866.9 link	c.284T>A	p.Val95Asp	missense_variant	Exon 2 of 54	1	NM_000393.5	ENSP00000364000.3	P05997
COL5A2	ENST00000649966.1 link	c.146T>A	p.Val49Asp	missense_variant	Exon 2 of 11			ENSP00000496785.1	A0A3B3IRH9
COL5A2	ENST00000618828.1 link	c.-347T>A		5_prime_UTR_variant	Exon 2 of 47	5		ENSP00000482184.1	A0A087WYX9

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000941

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

251354

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135846

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.0000440

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000889

AC:

AN:

1461836

Hom.:

Cov.:

AF XY:

0.00000825

AC XY:

AN XY:

727222

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000562

Gnomad4 NFE exome

AF:

0.00000899

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74340

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000941

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000756

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Familial thoracic aortic aneurysm and aortic dissection

Uncertain:1

Apr 15, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.V95D variant (also known as c.284T>A), located in coding exon 2 of the COL5A2 gene, results from a T to A substitution at nucleotide position 284. The valine at codon 95 is replaced by aspartic acid, an amino acid with highly dissimilar properties. This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -

not provided

Uncertain:1

Sep 12, 2024

GeneDx

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Has not been previously published as pathogenic or benign to our knowledge; In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 22696272) -

Ehlers-Danlos syndrome, classic type, 1

Uncertain:1

Sep 01, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces valine with aspartic acid at codon 95 of the COL5A2 protein (p.Val95Asp). The valine residue is highly conserved and there is a large physicochemical difference between valine and aspartic acid. This variant is present in population databases (rs759604513, ExAC 0.007%). This variant has not been reported in the literature in individuals affected with COL5A2-related conditions. ClinVar contains an entry for this variant (Variation ID: 213135). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.33

BayesDel_addAF

Benign

0.0027

BayesDel_noAF

Benign

-0.10

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.26

T;T;.

Eigen

Benign

-0.068

Eigen_PC

Benign

-0.023

FATHMM_MKL

Benign

0.25

LIST_S2

Uncertain

0.92

.;D;D

M_CAP

Uncertain

0.11

MetaRNN

Uncertain

0.47

T;T;T

MetaSVM

Benign

-0.71

MutationAssessor

Pathogenic

3.0

M;M;.

PrimateAI

Benign

0.47

PROVEAN

Uncertain

-3.5

D;.;.

REVEL

Uncertain

0.43

Sift

Uncertain

0.0010

D;.;.

Sift4G

Uncertain

0.010

D;.;.

Polyphen

0.15

B;B;.

Vest4

0.64

MutPred

0.61

Gain of loop (P = 0.1069);Gain of loop (P = 0.1069);.;

MVP

0.64

MPC

1.1

ClinPred

0.65

GERP RS

1.6

Varity_R

0.65

gMVP

0.88

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over