10-73998227-G-A

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_014000.3(VCL):​c.20G>A​(p.Arg7His) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,460,474 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R7L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

VCL
NM_014000.3 missense

Scores

2
6
11

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 6.44

Publications

1 publications found
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 Gene-Disease associations (from GenCC):
  • dilated cardiomyopathy 1W
    Inheritance: AD Classification: STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • dilated cardiomyopathy
    Inheritance: AD Classification: MODERATE Submitted by: ClinGen
  • familial isolated dilated cardiomyopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • hypertrophic cardiomyopathy 15
    Inheritance: AD Classification: LIMITED Submitted by: PanelApp Australia, Ambry Genetics, Labcorp Genetics (formerly Invitae)
  • hypertrophic cardiomyopathy
    Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.30885172).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
VCLNM_014000.3 linkc.20G>A p.Arg7His missense_variant Exon 1 of 22 ENST00000211998.10 NP_054706.1 P18206-1V9HWK2B3KXA2
VCLNM_003373.4 linkc.20G>A p.Arg7His missense_variant Exon 1 of 21 NP_003364.1 P18206-2A0A024QZN4B3KXA2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
VCLENST00000211998.10 linkc.20G>A p.Arg7His missense_variant Exon 1 of 22 1 NM_014000.3 ENSP00000211998.5 P18206-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000405
AC:
1
AN:
246722
AF XY:
0.00000746
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000205
AC:
3
AN:
1460474
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726472
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33432
American (AMR)
AF:
0.00
AC:
0
AN:
44642
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26082
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39652
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86042
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53100
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
9.00e-7
AC:
1
AN:
1111476
Other (OTH)
AF:
0.00
AC:
0
AN:
60284
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Cov.:
33

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Dilated cardiomyopathy 1W Uncertain:1
Nov 15, 2022
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Not Available"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Not Available"). ClinVar contains an entry for this variant (Variation ID: 1378723). This variant has not been reported in the literature in individuals affected with VCL-related conditions. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces arginine with histidine at codon 7 of the VCL protein (p.Arg7His). The arginine residue is moderately conserved and there is a small physicochemical difference between arginine and histidine. -

Cardiovascular phenotype Uncertain:1
Aug 19, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.R7H variant (also known as c.20G>A), located in coding exon 1 of the VCL gene, results from a G to A substitution at nucleotide position 20. The arginine at codon 7 is replaced by histidine, an amino acid with highly similar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.63
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Benign
-0.36
CADD
Pathogenic
33
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.43
T;.
Eigen
Benign
0.18
Eigen_PC
Uncertain
0.27
FATHMM_MKL
Benign
0.23
N
LIST_S2
Pathogenic
0.99
D;D
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.31
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
N;N
PhyloP100
6.4
PrimateAI
Uncertain
0.75
T
PROVEAN
Benign
-2.3
N;N
REVEL
Benign
0.11
Sift
Uncertain
0.0020
D;D
Sift4G
Uncertain
0.0030
D;D
Polyphen
0.98
D;P
Vest4
0.34
MutPred
0.60
Loss of helix (P = 0.0376);Loss of helix (P = 0.0376);
MVP
0.45
MPC
2.6
ClinPred
0.92
D
GERP RS
4.3
PromoterAI
0.046
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.53
gMVP
0.41
Mutation Taster
=52/48
polymorphism

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

Other links and lift over

dbSNP: rs764871020; hg19: chr10-75757985; API