3-10142056-A-G
Variant summary
Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PM5PP5
The NM_000551.4(VHL):āc.209A>Gā(p.Glu70Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000206 in 1,454,330 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. E70K) has been classified as Pathogenic.
Frequency
Consequence
NM_000551.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 7 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
VHL | NM_000551.4 | c.209A>G | p.Glu70Gly | missense_variant | Exon 1 of 3 | ENST00000256474.3 | NP_000542.1 | |
VHL | NM_001354723.2 | c.209A>G | p.Glu70Gly | missense_variant | Exon 1 of 3 | NP_001341652.1 | ||
VHL | NM_198156.3 | c.209A>G | p.Glu70Gly | missense_variant | Exon 1 of 2 | NP_937799.1 | ||
VHL | NR_176335.1 | n.279A>G | non_coding_transcript_exon_variant | Exon 1 of 4 |
Ensembl
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 exomes AF: 0.00000435 AC: 1AN: 229818Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 126848
GnomAD4 exome AF: 0.00000206 AC: 3AN: 1454330Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 723418
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia Pathogenic:1
This sequence change replaces glutamic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 70 of the VHL protein (p.Glu70Gly). This variant is present in population databases (rs786202857, gnomAD 0.003%). This missense change has been observed in individuals with clinical features of von Hippel-Lindau syndrome (internal data). ClinVar contains an entry for this variant (Variation ID: 186316). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is expected to disrupt VHL protein function with a positive predictive value of 95%. This variant disrupts the p.Glu70 amino acid residue in VHL. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 9829912, 17661816, 19270817, 19408298, 25078357, 25562111, 25715769, 27439424; internal data). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic. -
Von Hippel-Lindau syndrome;C0031511:Pheochromocytoma;C1837915:Chuvash polycythemia;CN074294:Nonpapillary renal cell carcinoma Pathogenic:1
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Chuvash polycythemia Uncertain:1
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not provided Uncertain:1
Observed in an individual with pheochromocytoma (PMID: 34750850); Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Also known as c.422A>G, p.E141G and p.E111G; This variant is associated with the following publications: (PMID: 9829912, 17661816, 19270817, 19408298, 25078357, 25562111, 25715769, 27439424, 34750850) -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.E70G variant (also known as c.209A>G), located in coding exon 1 of the VHL gene, results from an A to G substitution at nucleotide position 209. The glutamic acid at codon 70 is replaced by glycine, an amino acid with similar properties. This variant has been reported in an individual with a pheochromocytoma and was classified as variant of unknown significance by authors (Parisien-La Salle S et al. Clin Endocrinol (Oxf), 2022 Jun;96:803-811). This variant was determined to be functionally intermediate in one saturation genome editing assay (Buckley M et al. Nat Genet, 2024 Jul;56:1446-1455). Another variant at the same codon, p.E70K (c.208G>A), has been identified in individual(s) with features consistent with von Hippel-Lindau syndrome and has been shown to cause a modest reduction in the ability of the VHL protein to bind with the alpha subunit of the hypoxia-inducible transcription factor (Olschwang S et. al, Hum. Mut. 1998;12:424-30; Hes FJ et. al. Clin. Genet. 2007 Aug;72:122-9; Cho HJ et al. J Korean Med Sci. 2009 Feb;24:77-83; Miller F et al. J Biol Chem. 2005 Mar;280:7986-96). This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the available evidence, the clinical significance of this variant remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at