rs397517247
Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2
The NM_014000.3(VCL):c.952C>T(p.Arg318Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000867 in 1,613,958 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_014000.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -4 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152130Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000159 AC: 4AN: 251406Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135868
GnomAD4 exome AF: 0.00000821 AC: 12AN: 1461828Hom.: 0 Cov.: 33 AF XY: 0.0000110 AC XY: 8AN XY: 727214
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152130Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74308
ClinVar
Submissions by phenotype
not specified Uncertain:1
The Arg318Cys variant has not been reported in the literature. Arginine (Arg) at position 318 is conserved in some mammals but not in some distant species (the fruit fly and the worm carry a serine and an alanine at this position, respectiv ely), reducing the likelihood that the change is pathogenic. However, in the con text of another, likely pathogenic variant, we are unable to assess the pathogen icity of this variant in isolation. -
Dilated cardiomyopathy 1W Uncertain:1
This sequence change replaces arginine, which is basic and polar, with cysteine, which is neutral and slightly polar, at codon 318 of the VCL protein (p.Arg318Cys). This variant is present in population databases (rs397517247, gnomAD 0.006%). This missense change has been observed in individual(s) with dilated cardiomyopathy (PMID: 27532257). ClinVar contains an entry for this variant (Variation ID: 45623). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -
Dilated cardiomyopathy 1W;C2750459:Hypertrophic cardiomyopathy 15 Uncertain:1
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Cardiovascular phenotype Uncertain:1
The p.R318C variant (also known as c.952C>T), located in coding exon 8 of the VCL gene, results from a C to T substitution at nucleotide position 952. The arginine at codon 318 is replaced by cysteine, an amino acid with highly dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. The evidence for this gene-disease relationship is limited; therefore, the clinical significance of this alteration is unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at