NM_000551.4:c.631A>C
Variant summary
Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM1BP4_StrongBP6BS1
The NM_000551.4(VHL):āc.631A>Cā(p.Met211Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000347 in 1,613,786 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_000551.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -7 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
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VHL | NM_000551.4 | c.631A>C | p.Met211Leu | missense_variant | Exon 3 of 3 | ENST00000256474.3 | NP_000542.1 | |
VHL | NM_198156.3 | c.508A>C | p.Met170Leu | missense_variant | Exon 2 of 2 | NP_937799.1 | ||
VHL | NM_001354723.2 | c.*185A>C | 3_prime_UTR_variant | Exon 3 of 3 | NP_001341652.1 | |||
VHL | NR_176335.1 | n.960A>C | non_coding_transcript_exon_variant | Exon 4 of 4 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000526 AC: 8AN: 152178Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000199 AC: 5AN: 250714Hom.: 0 AF XY: 0.0000221 AC XY: 3AN XY: 135540
GnomAD4 exome AF: 0.0000301 AC: 44AN: 1461490Hom.: 1 Cov.: 30 AF XY: 0.0000385 AC XY: 28AN XY: 727024
GnomAD4 genome AF: 0.0000788 AC: 12AN: 152296Hom.: 0 Cov.: 32 AF XY: 0.0000806 AC XY: 6AN XY: 74464
ClinVar
Submissions by phenotype
Von Hippel-Lindau syndrome Uncertain:3Benign:2
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This variant is considered likely benign. This variant has been observed at a population frequency that is significantly greater than expected given the associated disease prevalence and penetrance. -
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This missense variant replaces methionine with leucine at codon 211 of the VHL protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in an individual affected with sporadic renal cell carcinoma along with a second VHL variant, c.3G>A, who lacks other manifestations or family history of von Hippel-Lindau syndrome (PMID: 31034483). This variant has been identified in 6/282108 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
The VHL c.631A>C (p.Met211Leu) missense change has a maximum subpopulation frequency of 0.016% in gnomAD v2.1.1 (https://gnomad.broadinstitute.org/). The in silico tool REVEL is inconclusive about a pathogenic or benign effect of this variant on protein function, and to our knowledge, functional studies have not been performed. A VHL-specific in silico multiparametric scoring algorithm indicated that this variant is more likely to be low risk (PMID: 33151962). This variant has been reported in individuals with breast cancer (PMID: 28202063) and renal cell carcinoma (PMID: 31034483). To our knowledge, this variant has not been reported in individuals with Von Hippel-Lindau disease. In summary, the evidence currently available is insufficient to determine the role of this variant in disease. It has therefore been classified as of uncertain significance. -
not provided Uncertain:2Benign:1
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Not observed at a significant frequency in large population cohorts (Lek et al., 2016); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 25801821, 28202063, 31034483) -
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not specified Uncertain:1Benign:1
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Variant summary: VHL c.631A>C (p.Met211Leu) results in a conservative amino acid change in the encoded protein sequence. Three of four in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 2.5e-05 in 276540 control chromosomes (gnomAD). The observed variant frequency is approximately 1.2 fold above the estimated maximal expected allele frequency for a pathogenic variant in VHL causing Von Hippel-Lindau Syndrome phenotype (2.1e-05), suggesting that the variant might be benign. The variant, c.631A>C, has been reported in the literature in individuals affected with Breast Cancer (Jalkh_2017). This report does not provide unequivocal conclusions about association of the variant with Von Hippel-Lindau Syndrome. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. Three clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 without evidence for independent evaluation (2x likely benign, 1x uncertain significance). Based on the evidence outlined above, the variant was classified as VUS-possibly benign. -
VHL-related disorder Uncertain:1
The VHL c.631A>C variant is predicted to result in the amino acid substitution p.Met211Leu. This variant was reported in individuals with renal cell carcinoma or breast cancer (Jalkh et al 2017. PubMed ID: 28202063; Christensen MB et al 2019. PubMed ID: 31034483); however, variants in other genes were also reported. This variant is reported in 0.016% of alleles in individuals of African descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia Uncertain:1
This sequence change replaces methionine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 211 of the VHL protein (p.Met211Leu). This variant is present in population databases (rs200019083, gnomAD 0.02%). This missense change has been observed in individual(s) with breast cancer or renal cell carcinoma (PMID: 28202063, 31034483). ClinVar contains an entry for this variant (Variation ID: 182990). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Benign". The leucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -
Hereditary cancer-predisposing syndrome 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