chr3-10149904-T-G
Variant summary
Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM1PM2PP3PP5
The NM_000551.4(VHL):c.581T>G(p.Val194Gly) variant causes a missense change. 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V194M) has been classified as Uncertain significance.
Frequency
Consequence
NM_000551.4 missense
Scores
Clinical Significance
Conservation
Publications
- pheochromocytomaInheritance: AD Classification: DEFINITIVE Submitted by: G2P
- von Hippel-Lindau diseaseInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P, Orphanet
- renal cell carcinomaInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
- autosomal recessive secondary polycythemia not associated with VHL geneInheritance: AR Classification: STRONG Submitted by: Ambry Genetics
- Chuvash polycythemiaInheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Orphanet
- hereditary pheochromocytoma-paragangliomaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_pathogenic. The variant received 6 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| VHL | NM_000551.4 | c.581T>G | p.Val194Gly | missense_variant | Exon 3 of 3 | ENST00000256474.3 | NP_000542.1 | |
| VHL | NM_198156.3 | c.458T>G | p.Val153Gly | missense_variant | Exon 2 of 2 | NP_937799.1 | ||
| VHL | NR_176335.1 | n.910T>G | non_coding_transcript_exon_variant | Exon 4 of 4 | ||||
| VHL | NM_001354723.2 | c.*135T>G | 3_prime_UTR_variant | Exon 3 of 3 | NP_001341652.1 |
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD4 exome Cov.: 30
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Von Hippel-Lindau syndrome Pathogenic:1
Variant summary: VHL c.581T>G (p.Val194Gly) results in a non-conservative amino acid change located in the von Hippel-Landau (pVHL) tumor suppressor protein domain (IPR022772) of the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant was absent in 251414 control chromosomes. c.581T>G has been reported in the literature in individuals affected with Von Hippel-Lindau Syndrome and was shown to segregate with disease in at-least one family evaluated at our partner laboratory (example, Kawashima_2014 and internal data). At-least one family reported in the literature describes the variant as inherited from an unaffected father although the loss of heterozygosity was demonstrated in tumors of the affected proband (Kawashima_2014). These data indicate that the variant is likely to be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications has been ascertained in the context of this evaluation (PMID: 24518179). ClinVar contains an entry for this variant (Variation ID: 428810). Based on the evidence outlined above, the variant was classified as likely pathogenic. -
Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia Pathogenic:1
Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt VHL protein function. ClinVar contains an entry for this variant (Variation ID: 428810). This missense change has been observed in individuals with clinical features of von Hippel-Lindau syndrome (PMID: 24518179; Invitae). It has also been observed to segregate with disease in related individuals. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces valine, which is neutral and non-polar, with glycine, which is neutral and non-polar, at codon 194 of the VHL protein (p.Val194Gly). For these reasons, this variant has been classified as Pathogenic. -
Hereditary cancer-predisposing syndrome Pathogenic:1
The p.V194G variant (also known as c.581T>G), located in coding exon 3 of the VHL gene, results from a T to G substitution at nucleotide position 581. The valine at codon 194 is replaced by glycine, an amino acid with dissimilar properties. This variant was identified in one or more individuals with features consistent with on Hippel-Lindau syndrome (Kawashima S et al. Endocr Pract. 2014 Jun;20(6):e96-e101; Ambry internal data) and segregated with disease in at least one family (Ambry internal data). This variant is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD). This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the majority of available evidence to date, this variant is likely to be pathogenic. -
Von Hippel-Lindau syndrome;C0031511:Pheochromocytoma;C1837915:Chuvash polycythemia;CN074294:Nonpapillary renal cell carcinoma Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at