chr2-189060790-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_000393.5(COL5A2):c.2032-7G>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00288 in 1,612,026 control chromosomes in the GnomAD database, including 24 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0026 ( 15 hom., cov: 32)

Exomes 𝑓: 0.0029 ( 9 hom. )

Consequence

COL5A2
NM_000393.5 splice_region, intron

Scores

Splicing: ADA: 0.00009840

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:13

Conservation

PhyloP100: -0.682

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 -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.71).

BP6

Variant 2-189060790-C-T is Benign according to our data. Variant chr2-189060790-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 136943.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr2-189060790-C-T is described in Lovd as [Benign]. Variant chr2-189060790-C-T is described in Lovd as [Likely_benign].

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00261 (397/152198) while in subpopulation NFE AF= 0.00319 (217/67984). AF 95% confidence interval is 0.00284. There are 15 homozygotes in gnomad4. There are 171 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High AC in GnomAd4 at 397 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
COL5A2	NM_000393.5 link	c.2032-7G>A	splice_region_variant, intron_variant	Intron 30 of 53	ENST00000374866.9	NP_000384.2	P05997
COL5A2	XM_011510573.4 link	c.1894-7G>A	splice_region_variant, intron_variant	Intron 33 of 56		XP_011508875.1
COL5A2	XM_047443251.1 link	c.1894-7G>A	splice_region_variant, intron_variant	Intron 35 of 58		XP_047299207.1
COL5A2	XM_047443252.1 link	c.1894-7G>A	splice_region_variant, intron_variant	Intron 34 of 57		XP_047299208.1

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
COL5A2	ENST00000374866.9 link	c.2032-7G>A	splice_region_variant, intron_variant	Intron 30 of 53	1	NM_000393.5	ENSP00000364000.3	P05997
COL5A2	ENST00000618828.1 link	c.871-7G>A	splice_region_variant, intron_variant	Intron 23 of 46	5		ENSP00000482184.1	A0A087WYX9
COL5A2	ENST00000470524.2 link	n.138-7G>A	splice_region_variant, intron_variant	Intron 3 of 7	5

Frequencies

GnomAD3 genomes

AF:

0.00261

AC:

397

AN:

152080

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000555

Gnomad AMI

AF:

0.143

Gnomad AMR

AF:

0.000590

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00123

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.00319

Gnomad OTH

AF:

0.00144

GnomAD3 exomes

AF:

0.00167

AC:

419

AN:

250998

Hom.:

AF XY:

0.00158

AC XY:

214

AN XY:

135748

show subpopulations

Gnomad AFR exome

AF:

0.000433

Gnomad AMR exome

AF:

0.000695

Gnomad ASJ exome

AF:

0.0000992

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000229

Gnomad FIN exome

AF:

0.00180

Gnomad NFE exome

AF:

0.00290

Gnomad OTH exome

AF:

0.00196

GnomAD4 exome

AF:

0.00291

AC:

4250

AN:

1459828

Hom.:

Cov.:

AF XY:

0.00286

AC XY:

2075

AN XY:

726392

show subpopulations

Gnomad4 AFR exome

AF:

0.000329

Gnomad4 AMR exome

AF:

0.000582

Gnomad4 ASJ exome

AF:

0.0000766

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000278

Gnomad4 FIN exome

AF:

0.00189

Gnomad4 NFE exome

AF:

0.00355

Gnomad4 OTH exome

AF:

0.00245

GnomAD4 genome

AF:

0.00261

AC:

397

AN:

152198

Hom.:

Cov.:

AF XY:

0.00230

AC XY:

171

AN XY:

74408

show subpopulations

Gnomad4 AFR

AF:

0.000554

Gnomad4 AMR

AF:

0.000589

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00123

Gnomad4 NFE

AF:

0.00319

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.00256

Hom.:

Bravo

AF:

0.00297

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00311

EpiControl

AF:

0.00314

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:13

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:5

Genome Diagnostics Laboratory, University Medical Center Utrecht

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Apr 12, 2013

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. -

Genome Diagnostics Laboratory, Amsterdam University Medical Center

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 21, 2023

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Ehlers-Danlos syndrome, classic type, 2

Benign:2

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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. -

Aug 07, 2023

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:2

Feb 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

COL5A2: BP4, BS1, BS2 -

Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

- -

Ehlers-Danlos syndrome type 7A

Benign:1

Jun 14, 2016

Illumina Laboratory Services, Illumina

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Ehlers-Danlos syndrome

Benign:1

Apr 02, 2022

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Ehlers-Danlos syndrome, classic type, 1

Benign:1

Feb 02, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Connective tissue disorder

Benign:1

Nov 01, 2016

Center for Human Genetics, Inc, Center for Human Genetics, Inc

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.71

CADD

Benign

3.6

DANN

Benign

0.49

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000098

dbscSNV1_RF

Benign

0.0020

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