rs104893824
Variant summary
Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1PM2PP3_StrongPP5_Very_Strong
The NM_000551.4(VHL):c.334T>A(p.Tyr112Asn) 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 Pathogenic (★★).
Frequency
Consequence
NM_000551.4 missense
Scores
Clinical Significance
Conservation
Genome browser will be placed here
ACMG classification
Verdict is Pathogenic. Variant got 16 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
VHL | NM_000551.4 | c.334T>A | p.Tyr112Asn | missense_variant | Exon 1 of 3 | ENST00000256474.3 | NP_000542.1 | |
VHL | NM_001354723.2 | c.334T>A | p.Tyr112Asn | missense_variant | Exon 1 of 3 | NP_001341652.1 | ||
VHL | NM_198156.3 | c.334T>A | p.Tyr112Asn | missense_variant | Exon 1 of 2 | NP_937799.1 | ||
VHL | NR_176335.1 | n.404T>A | non_coding_transcript_exon_variant | Exon 1 of 4 |
Ensembl
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD4 exome Cov.: 32
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
Von Hippel-Lindau syndrome Pathogenic:3
- -
Variant summary: c.334T>A affects a conserved nucleotide, resulting in amino acid change from Tyr to Asn. 4/4 in-silico tools predict this variant to be damaging. This variant was not found in 91896 control chromosomes. This variant has been reported in multiple VHL pts with clear co-segregation of the variant with disease in the families (Bradley_1999 and Yoshida_2000). Functional studies showed that cell lines with variant have increased level of HIF2alpha (the critical oncogenic pVHL substrate in renal carcinogenesis) and its targets, the Y112N-producing cells formed large tumors (Li_2007), and the cell lines with variant showed disorganized fibroblast-like morphology and higher level of alpha5 integrin (Bangiyeva_2009). OMIM (also via ClinVar) lists this variant with classification of pathogenic. Taken together, this variant was classified as a Pathogenic. -
- -
Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia Pathogenic:1
This sequence change replaces tyrosine, which is neutral and polar, with asparagine, which is neutral and polar, at codon 112 of the VHL protein (p.Tyr112Asn). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with VHL-related conditions (PMID: 10533030). It has also been observed to segregate with disease in related individuals. ClinVar contains an entry for this variant (Variation ID: 2228). 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 are conflicting or provide insufficient evidence to determine the effect of this variant on VHL function (PMID: 19602254). This variant disrupts the p.Tyr112 amino acid residue in VHL. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 7728151, 8863170, 21204227). 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at