rs397517246
Variant summary
Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4BP6BS2
The NM_014000.3(VCL):c.854G>A(p.Arg285His) variant causes a missense change. The variant allele was found at a frequency of 0.0000062 in 1,614,110 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R285C) has been classified as Uncertain significance.
Frequency
Consequence
NM_014000.3 missense
Scores
Clinical Significance
Conservation
Publications
- dilated cardiomyopathy 1WInheritance: AD Classification: STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
- dilated cardiomyopathyInheritance: AD Classification: MODERATE Submitted by: ClinGen
- familial isolated dilated cardiomyopathyInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- hypertrophic cardiomyopathy 15Inheritance: AD Classification: LIMITED Submitted by: PanelApp Australia, Ambry Genetics, Labcorp Genetics (formerly Invitae)
- hypertrophic cardiomyopathyInheritance: AD Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Likely_benign. The variant received -6 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152182Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.00000796 AC: 2AN: 251402 AF XY: 0.0000147 show subpopulations
GnomAD4 exome AF: 0.00000547 AC: 8AN: 1461810Hom.: 0 Cov.: 32 AF XY: 0.00000825 AC XY: 6AN XY: 727200 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152300Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74466 show subpopulations
ClinVar
Submissions by phenotype
not specified Uncertain:1
The Arg285His variant (VCL) has not been reported in the literature, but has bee n identified in one proband with HCM (this individual's son) by our laboratory. Arginine (Arg) at position 285 is not completely conserved across different spec ies, increasing the likelihood that a change would be tolerated. Computational a nalyses (biochemical amino acid properties, AlignGVGD, PolyPhen2, and SIFT) also suggest that the Arg285His variant may not impact the protein, though this info rmation is not predictive enough to rule out pathogenicity. Variants in the VCL gene have been found in individuals with HCM as well as DCM (Olson 2002, Vasile 2006). However, the number of studies is still small and the contribution of VCL to HCM and DCM, as well as the types of variants that cause disease, have not b een well established. Additional information is needed to fully assess the clini cal significance of this variant. -
Dilated cardiomyopathy 1W Uncertain:1
This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 285 of the VCL protein (p.Arg285His). This variant is present in population databases (rs397517246, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with VCL-related conditions. ClinVar contains an entry for this variant (Variation ID: 45621). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Possibly Damaging". The histidine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. 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
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Cardiovascular phenotype Benign:1
This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at