rs864622646
Variant summary
Our verdict is Pathogenic. Variant got 22 ACMG points: 22P and 0B. PS1PM1PM2PM5PP3_StrongPP5_Very_Strong
The NM_000551.4(VHL):c.345C>A(p.His115Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Pathogenic in Lovd. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H115Y) has been classified as Likely pathogenic.
Frequency
Consequence
NM_000551.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 22 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
VHL | NM_000551.4 | c.345C>A | p.His115Gln | missense_variant | Exon 2 of 3 | ENST00000256474.3 | NP_000542.1 | |
VHL | NM_001354723.2 | c.*18-3269C>A | intron_variant | Intron 2 of 2 | NP_001341652.1 | |||
VHL | NM_198156.3 | c.341-3269C>A | intron_variant | Intron 1 of 1 | NP_937799.1 | |||
VHL | NR_176335.1 | n.674C>A | non_coding_transcript_exon_variant | Exon 3 of 4 |
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome Cov.: 31
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Von Hippel-Lindau syndrome Pathogenic:1
Variant summary: This c.345C>A affects a non-conserved nucleotide, resulting in amino acid change from His to Gln. 2/3 in-silico tools predict this variant to be damaging. The residue p.His115 is reported to be critical for interaction with HIF, thus this missense change is unlikely to be tolerated. By a structural/functional assay, interaction energy of residue was ~1.5 kcal/mol weaker than that with histidine in the wild type (Domene_2012), thus proving that the variant leads to functional impairment. This variant was not found in approximately 121600 control chromosomes, including the broad and large populations from ExAC. In literature, the p.His115Gln has been reported as a pathogenic variant found in >6 independent VHL patients/families, including somatic occurrences. At least one database calls this variant as pathogenic. Taken together, this variant has been classified as a Pathogenic. -
Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia Pathogenic:1
This sequence change replaces histidine, which is basic and polar, with glutamine, which is neutral and polar, at codon 115 of the VHL protein (p.His115Gln). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individuals with clinical features of von Hippel-Lindau syndrome (PMID: 7728151, 9681856, 9829912, 19949673, 29749453). ClinVar contains an entry for this variant (Variation ID: 496057). 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%. Experimental studies have shown that this missense change affects VHL function (PMID: 28775317). This variant disrupts the p.His115 amino acid residue in VHL. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 8707293, 22357542). 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. -
not provided Pathogenic:1
Classification criteria: PS3_supporting, PM1_supporting, PM2_supporting, PP3_supporting, PS4_moderate -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at