chr10-74074745-A-T
Variant summary
Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_014000.3(VCL):c.625A>T(p.Met209Leu) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,613,126 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_014000.3 missense, splice_region
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -6 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
VCL | NM_014000.3 | c.625A>T | p.Met209Leu | missense_variant, splice_region_variant | Exon 6 of 22 | ENST00000211998.10 | NP_054706.1 | |
VCL | NM_003373.4 | c.625A>T | p.Met209Leu | missense_variant, splice_region_variant | Exon 6 of 21 | NP_003364.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152194Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000360 AC: 9AN: 249842Hom.: 0 AF XY: 0.0000296 AC XY: 4AN XY: 135158
GnomAD4 exome AF: 0.0000192 AC: 28AN: 1460814Hom.: 0 Cov.: 31 AF XY: 0.0000165 AC XY: 12AN XY: 726686
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152312Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74490
ClinVar
Submissions by phenotype
Dilated cardiomyopathy 1W Uncertain:2
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This sequence change replaces methionine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 209 of the VCL protein (p.Met209Leu). This variant is present in population databases (rs144683137, gnomAD 0.04%). This missense change has been observed in individual(s) with dilated cardiomyopathy (PMID: 26458567, 35284542). ClinVar contains an entry for this variant (Variation ID: 488174). 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 tolerated. 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 specified Uncertain:1
Variant summary: VCL c.625A>T (p.Met209Leu) results in a conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 3.6e-05 in 249842 control chromosomes. The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.625A>T has been reported in the literature in individuals affected with Dilated Cardiomyopathy, without strong evidence for causality (Zhao_2015, Shen_2022). These reports do not provide unequivocal conclusions about association of the variant with Cardiomyopathy. At least one publication reports experimental evidence evaluating an impact on protein function in relation to neural tube defects. These results showed no alteration in protein levels compared to wild-type, no effects on both basic and Wnt5A-activated PCP signaling as well as no distinct change in cell migration (Wang_2021). However, the impact of these outcomes on cardiomyopathy is unclear. Three clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation. All laboratories classified the variant as uncertain significance. Based on the evidence outlined above, the variant was classified as uncertain significance. -
Cardiomyopathy Uncertain:1
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Hypertrophic cardiomyopathy 15 Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at