2-189043143-T-A

Position:

chr2-189043143-T-A

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_000393.5(COL5A2):c.3471+8A>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0011 in 1,604,170 control chromosomes in the GnomAD database, including 1 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00057 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0012 ( 1 hom. )

Consequence

COL5A2
NM_000393.5 splice_region, intron

Scores

Splicing: ADA: 0.0004781

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:11

Conservation

PhyloP100: -0.268

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:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.72).

BP6

Variant 2-189043143-T-A is Benign according to our data. Variant chr2-189043143-T-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 155778.We mark this variant Likely_benign, oryginal submissions are: {Benign=4, Likely_benign=5, Uncertain_significance=2}. Variant chr2-189043143-T-A is described in Lovd as [Likely_benign].

BS2

High AC in GnomAd4 at 87 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	MANE
COL5A2	NM_000393.5 linkuse as main transcript	c.3471+8A>T	splice_region_variant, intron_variant	ENST00000374866.9
COL5A2	XM_011510573.4 linkuse as main transcript	c.3333+8A>T	splice_region_variant, intron_variant
COL5A2	XM_047443251.1 linkuse as main transcript	c.3333+8A>T	splice_region_variant, intron_variant
COL5A2	XM_047443252.1 linkuse as main transcript	c.3333+8A>T	splice_region_variant, intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
COL5A2	ENST00000374866.9 linkuse as main transcript	c.3471+8A>T		splice_region_variant, intron_variant		1	NM_000393.5	P1
COL5A2	ENST00000618828.1 linkuse as main transcript	c.2310+8A>T		splice_region_variant, intron_variant		5

Frequencies

GnomAD3 genomes

AF:

0.000572

AC:

AN:

152164

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000290

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

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:

0.000970

Gnomad OTH

AF:

0.00239

GnomAD3 exomes

AF:

0.000532

AC:

132

AN:

248048

Hom.:

AF XY:

0.000627

AC XY:

AN XY:

133940

show subpopulations

Gnomad AFR exome

AF:

0.000188

Gnomad AMR exome

AF:

0.0000585

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000929

Gnomad NFE exome

AF:

0.00110

Gnomad OTH exome

AF:

0.000330

GnomAD4 exome

AF:

0.00115

AC:

1672

AN:

1452006

Hom.:

Cov.:

AF XY:

0.00113

AC XY:

815

AN XY:

722714

show subpopulations

Gnomad4 AFR exome

AF:

0.000300

Gnomad4 AMR exome

AF:

0.0000900

Gnomad4 ASJ exome

AF:

0.0000385

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000375

Gnomad4 NFE exome

AF:

0.00146

Gnomad4 OTH exome

AF:

0.000666

GnomAD4 genome

AF:

0.000572

AC:

AN:

152164

Hom.:

Cov.:

AF XY:

0.000565

AC XY:

AN XY:

74338

show subpopulations

Gnomad4 AFR

AF:

0.000290

Gnomad4 AMR

AF:

0.000262

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000970

Gnomad4 OTH

AF:

0.00239

Alfa

AF:

0.000915

Hom.:

Bravo

AF:

0.000699

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:11

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:3

Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Mar 01, 2024	COL5A2: BP4, BS1 -
Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Dec 29, 2016	- -
Likely benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	-	- -

not specified

Benign:3

Benign, criteria provided, single submitter	clinical testing	GeneDx	Jun 18, 2014	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. -
Likely benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -
Benign, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Jul 21, 2023	- -

Ehlers-Danlos syndrome, classic type, 2

Benign:2

Benign, criteria provided, single submitter	clinical testing	ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories	Oct 10, 2023	- -
Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 13, 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 likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Ehlers-Danlos syndrome type 7A

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Disproportionate tall stature;C4707243:Familial thoracic aortic aneurysm and aortic dissection

Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

Blueprint Genetics

Jan 08, 2014

- -

Ehlers-Danlos syndrome

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Genome Diagnostics Laboratory, The Hospital for Sick Children

Apr 01, 2020

- -

Ehlers-Danlos syndrome, classic type, 1

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 31, 2024

- -

Connective tissue disorder

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

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

Nov 01, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.72

CADD

Benign

3.1

DANN

Benign

0.64

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.00048

dbscSNV1_RF

Benign

0.018

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