chr10-74043099-T-C
Variant summary
Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2
The NM_014000.3(VCL):c.185T>C(p.Val62Ala) variant causes a missense change. The variant allele was found at a frequency of 0.0000149 in 1,613,474 control chromosomes in the GnomAD database, including 2 homozygotes. 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. V62I) 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 -5 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152198Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000438 AC: 11AN: 251302 AF XY: 0.0000294 show subpopulations
GnomAD4 exome AF: 0.0000157 AC: 23AN: 1461158Hom.: 2 Cov.: 30 AF XY: 0.0000165 AC XY: 12AN XY: 726936 show subpopulations
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152316Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74488 show subpopulations ⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
ClinVar
Submissions by phenotype
not specified Uncertain:1
The p.Val62Ala variant in VCL has not been previously reported in individuals wi th cardiomyopathy, but has been identified in 10/33578 Latino chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP rs 769799445). This variant has also been reported in ClinVar (Variation ID:408954) . In summary, the clinical significance of the p.Val62Ala variant is uncertain a nd more information needs to be obtained in order to determine its clinical sign ificance. ACMG/AMP Criteria applied: None Applied. -
Dilated cardiomyopathy 1W Uncertain:1
This sequence change replaces valine, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 62 of the VCL protein (p.Val62Ala). This variant is present in population databases (rs769799445, gnomAD 0.03%), including at least one homozygous and/or hemizygous individual. 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: 408954). 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. -
Cardiovascular phenotype Uncertain:1
The c.185T>C (p.V62A) alteration is located in exon 2 (coding exon 2) of the VCL gene. This alteration results from a T to C substitution at nucleotide position 185, causing the valine (V) at amino acid position 62 to be replaced by an alanine (A). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at