chr10-74111990-CCT-C

Position:

chr10-74111990-CCT-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 8P and 4B. PVS1BS2

The NM_014000.3(VCL):c.2828_2829del(p.Pro943ArgfsTer9) variant causes a frameshift change. The variant allele was found at a frequency of 0.0000273 in 1,614,194 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

VCL
NM_014000.3 frameshift

Scores

Not classified

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:4

Conservation

PhyloP100: 3.85

Variant links:

Genes affected

VCL (HGNC:12665): (vinculin) Vinculin is a cytoskeletal protein associated with cell-cell and cell-matrix junctions, where it is thought to function as one of several interacting proteins involved in anchoring F-actin to the membrane. Defects in VCL are the cause of cardiomyopathy dilated type 1W. Dilated cardiomyopathy is a disorder characterized by ventricular dilation and impaired systolic function, resulting in congestive heart failure and arrhythmia. Multiple alternatively spliced transcript variants have been found for this gene, but the biological validity of some variants has not been determined. [provided by RefSeq, Jul 2008]

VCL links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

BS2

High AC in GnomAd4 at 21 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
VCL	NM_014000.3 linkuse as main transcript	c.2828_2829del	p.Pro943ArgfsTer9	frameshift_variant	19/22	ENST00000211998.10	NP_054706.1
VCL	NM_003373.4 linkuse as main transcript	c.2746-2193_2746-2192del		intron_variant			NP_003364.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
VCL	ENST00000211998.10 linkuse as main transcript	c.2828_2829del	p.Pro943ArgfsTer9	frameshift_variant	19/22	1	NM_014000.3	ENSP00000211998		P18206-1
VCL	ENST00000372755.7 linkuse as main transcript	c.2746-2193_2746-2192del		intron_variant		1		ENSP00000361841	P1	P18206-2
VCL	ENST00000623461.3 linkuse as main transcript	n.5549-2193_5549-2192del		intron_variant, non_coding_transcript_variant		1
VCL	ENST00000624354.3 linkuse as main transcript	c.2583_2584del		3_prime_UTR_variant, NMD_transcript_variant	18/21	2		ENSP00000485551

Frequencies

GnomAD3 genomes

AF:

0.000131

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000338

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000358

AC:

AN:

251460

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135904

show subpopulations

Gnomad AFR exome

AF:

0.000431

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000157

AC:

AN:

1461892

Hom.:

AF XY:

0.0000138

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.000388

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000450

Gnomad4 OTH exome

AF:

0.0000331

GnomAD4 genome

AF:

0.000138

AC:

AN:

152302

Hom.:

Cov.:

AF XY:

0.0000806

AC XY:

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.000361

Gnomad4 AMR

AF:

0.000261

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.000125

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.00

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:1Uncertain:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Primary dilated cardiomyopathy

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Nov 27, 2015

The p.Pro943fs variant in VCL has not been previously reported in individuals wi th cardiomyopathy, but has been identified in 5/10406 of African chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs 781036800). This variant is predicted to cause a frameshift, which alters the pr otein?s amino acid sequence beginning at position 943 and leads to a premature t ermination codon 9 amino acids downstream. Mouse models have shown that loss of function of the VCL gene can lead to DCM (Zemljic-Harpf 2007), although the mode of inheritance associated with such variants in humans is not yet clear. In sum mary, although additional studies are required to fully establish its clinical s ignificance, the p.Pro943fs variant is likely pathogenic. -

Dilated cardiomyopathy 1W

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Sep 26, 2022

This sequence change creates a premature translational stop signal (p.Pro943Argfs*9) in the VCL gene. It is expected to result in an absent or disrupted protein product. However, the current clinical and genetic evidence is not sufficient to establish whether loss-of-function variants in VCL cause disease. This variant is present in population databases (rs781036800, gnomAD 0.04%), and has an allele count higher than expected for a pathogenic variant. This premature translational stop signal has been observed in individual(s) with VCL-related conditions (PMID: 26735901, 32516855). ClinVar contains an entry for this variant (Variation ID: 202163). 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. -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Nov 11, 2022

Has been reported as a variant of uncertain significance in individuals with DCM (Ware et al., 2016; Hawley et al., 202; Burstein et al., 2021); Frameshift variant predicted to result in protein truncation or nonsense mediated decay in a gene or region of a gene for which loss of function is not a well-established mechanism of disease; This variant is associated with the following publications: (PMID: 34426522, 33874732, 32746448, 32516855, 26735901) -

Hypertrophic cardiomyopathy 15

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Center of Genomic medicine, Geneva, University Hospital of Geneva

Nov 29, 2016

- -

Cardiovascular phenotype

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 02, 2022

The c.2828_2829delCT variant, located in coding exon 19 of the VCL gene, results from a deletion of two nucleotides at nucleotide positions 2828 to 2829, causing a translational frameshift with a predicted alternate stop codon (p.P943Rfs*9). This alteration is expected to result in loss of function by premature protein truncation or nonsense-mediated mRNA decay. However, this alteration impacts only one of the two main VCL isoforms (the metavinculin isoform), and loss of function of the metavinculin isoform has not been clearly established as a mechanism of disease. Furthermore, the evidence for this gene-disease relationship is limited; therefore, the clinical significance of this alteration is unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

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