rs140785678

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 1P and 7B. PP2BP4_ModerateBP6BS2

The NM_000393.5(COL5A2):c.985A>G(p.Met329Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000248 in 1,613,146 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict 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. M329T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

COL5A2
NM_000393.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 2.39

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 -6 ACMG points.

PP2

Missense variant where missense usually causes diseases, COL5A2

BP4

Computational evidence support a benign effect (MetaRNN=0.16182846).

BP6

Variant 2-189079083-T-C is Benign according to our data. Variant chr2-189079083-T-C is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 496938.We mark this variant Likely_benign, oryginal submissions are: {Uncertain_significance=2, Likely_benign=1}.

BS2

High AC in GnomAd at 10 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
COL5A2	NM_000393.5 linkuse as main transcript	c.985A>G	p.Met329Val	missense_variant	15/54	ENST00000374866.9
COL5A2	XM_011510573.4 linkuse as main transcript	c.847A>G	p.Met283Val	missense_variant	18/57
COL5A2	XM_047443251.1 linkuse as main transcript	c.847A>G	p.Met283Val	missense_variant	20/59
COL5A2	XM_047443252.1 linkuse as main transcript	c.847A>G	p.Met283Val	missense_variant	19/58

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COL5A2	ENST00000374866.9 linkuse as main transcript	c.985A>G	p.Met329Val	missense_variant	15/54	1	NM_000393.5	P1
COL5A2	ENST00000618828.1 linkuse as main transcript	c.355A>G	p.Met119Val	missense_variant	15/47	5

Frequencies

GnomAD3 genomes

AF:

0.0000657

AC:

AN:

152142

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000241

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:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000359

AC:

AN:

250876

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135586

show subpopulations

Gnomad AFR exome

AF:

0.000431

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:

0.00

Gnomad NFE exome

AF:

0.0000176

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000205

AC:

AN:

1460886

Hom.:

Cov.:

AF XY:

0.0000165

AC XY:

AN XY:

726782

show subpopulations

Gnomad4 AFR exome

AF:

0.000179

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:

0.00

Gnomad4 NFE exome

AF:

0.0000207

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000657

AC:

AN:

152260

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74452

show subpopulations

Gnomad4 AFR

AF:

0.000241

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000307

Hom.:

Bravo

AF:

0.0000416

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000494

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Jan 06, 2017	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Jan 07, 2020	Has not been previously published as pathogenic or benign to our knowledge; Reported in ClinVar as a variant of uncertain significance (ClinVar Variant ID# 496938; Landrum et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function -

Ehlers-Danlos syndrome, classic type, 1

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Nov 19, 2023

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.064

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Uncertain

-0.080

Cadd

Benign

Dann

Uncertain

0.98

DEOGEN2

Benign

0.32

T;T;T

Eigen

Benign

-0.21

Eigen_PC

Benign

0.019

FATHMM_MKL

Uncertain

0.95

M_CAP

Benign

0.073

MetaRNN

Benign

0.16

T;T;T

MetaSVM

Uncertain

-0.16

MutationAssessor

Benign

0.12

N;.;N

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.51

PROVEAN

Benign

-1.3

N;.;.

REVEL

Uncertain

0.32

Sift

Benign

0.24

T;.;.

Sift4G

Benign

0.39

T;T;.

Polyphen

0.25

B;.;B

Vest4

0.44

MVP

0.67

MPC

0.51

ClinPred

0.12

GERP RS

5.2

Varity_R

0.26

gMVP

0.67

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