2-189049396-G-A

Position:

chr2-189049396-G-A

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 1P and 20B. PP2BP4_StrongBP6_Very_StrongBS1BS2

The NM_000393.5(COL5A2):c.3098C>T(p.Pro1033Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00146 in 1,613,676 control chromosomes in the GnomAD database, including 49 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0013 ( 3 hom., cov: 32)

Exomes 𝑓: 0.0015 ( 46 hom. )

Consequence

COL5A2
NM_000393.5 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 9.73

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 Benign. Variant got -19 ACMG points.

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), COL5A2. . Gene score misZ 2.4395 (greater than the threshold 3.09). Trascript score misZ 3.3523 (greater than threshold 3.09). GenCC has associacion of gene with Ehlers-Danlos syndrome, classic type, 2, Ehlers-Danlos syndrome, classic type.

BP4

Computational evidence support a benign effect (MetaRNN=0.009112537).

BP6

Variant 2-189049396-G-A is Benign according to our data. Variant chr2-189049396-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 136949.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-189049396-G-A is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.00133 (202/152308) while in subpopulation EAS AF= 0.0359 (186/5176). AF 95% confidence interval is 0.0317. There are 3 homozygotes in gnomad4. There are 103 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 202 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
COL5A2	NM_000393.5 linkuse as main transcript	c.3098C>T	p.Pro1033Leu	missense_variant	44/54	ENST00000374866.9	NP_000384.2	P05997
COL5A2	XM_011510573.4 linkuse as main transcript	c.2960C>T	p.Pro987Leu	missense_variant	47/57		XP_011508875.1
COL5A2	XM_047443251.1 linkuse as main transcript	c.2960C>T	p.Pro987Leu	missense_variant	49/59		XP_047299207.1
COL5A2	XM_047443252.1 linkuse as main transcript	c.2960C>T	p.Pro987Leu	missense_variant	48/58		XP_047299208.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
COL5A2	ENST00000374866.9 linkuse as main transcript	c.3098C>T	p.Pro1033Leu	missense_variant	44/54	1	NM_000393.5	ENSP00000364000.3		P05997
COL5A2	ENST00000618828.1 linkuse as main transcript	c.1937C>T	p.Pro646Leu	missense_variant	37/47	5		ENSP00000482184.1		A0A087WYX9

Frequencies

GnomAD3 genomes

AF:

0.00134

AC:

204

AN:

152190

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0362

Gnomad SAS

AF:

0.00186

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00239

GnomAD3 exomes

AF:

0.00251

AC:

629

AN:

250228

Hom.:

AF XY:

0.00254

AC XY:

343

AN XY:

135238

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0313

Gnomad SAS exome

AF:

0.00122

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000884

Gnomad OTH exome

AF:

0.00213

GnomAD4 exome

AF:

0.00147

AC:

2151

AN:

1461368

Hom.:

Cov.:

AF XY:

0.00152

AC XY:

1103

AN XY:

726900

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000134

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0479

Gnomad4 SAS exome

AF:

0.00110

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000171

Gnomad4 OTH exome

AF:

0.00214

GnomAD4 genome

AF:

0.00133

AC:

202

AN:

152308

Hom.:

Cov.:

AF XY:

0.00138

AC XY:

103

AN XY:

74476

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.000131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.0359

Gnomad4 SAS

AF:

0.00187

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00237

Alfa

AF:

0.00148

Hom.:

Bravo

AF:

0.00123

ExAC

AF:

0.00237

AC:

288

Asia WGS

AF:

0.0230

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:9

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:3

Benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -
Likely benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jul 21, 2023	- -
Benign, criteria provided, single submitter	clinical testing	GeneDx	Jul 02, 2013	This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Ehlers-Danlos syndrome, classic type, 2

Benign:2

Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Mar 14, 2023	- -
Benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 12, 2018	This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Familial thoracic aortic aneurysm and aortic dissection

Benign:1

Benign, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 24, 2015

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Ehlers-Danlos syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Genome Diagnostics Laboratory, The Hospital for Sick Children

Dec 01, 2019

- -

Ehlers-Danlos syndrome type 7A

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Ehlers-Danlos syndrome, classic type, 1

Benign:1

Benign, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 29, 2024

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.083

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Uncertain

0.090

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.82

D;T;D

Eigen

Pathogenic

0.73

Eigen_PC

Pathogenic

0.76

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.95

.;D;D

MetaRNN

Benign

0.0091

T;T;T

MetaSVM

Uncertain

-0.00080

MutationAssessor

Benign

1.7

L;.;L

PrimateAI

Uncertain

0.68

PROVEAN

Pathogenic

-6.0

D;.;.

REVEL

Pathogenic

0.67

Sift

Benign

0.033

D;.;.

Sift4G

Benign

0.069

T;T;.

Polyphen

0.99

D;.;D

Vest4

0.63

MVP

0.75

MPC

0.26

ClinPred

0.086

GERP RS

5.4

Varity_R

0.25

gMVP

0.41

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