rs869025650
Variant summary
Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PP3_Strong
The NM_000551.4(VHL):c.430G>A(p.Gly144Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000342 in 1,461,708 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another nucleotide change resulting in same amino acid change has been previously reported as Uncertain significancein ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G144E) has been classified as Uncertain significance.
Frequency
Consequence
NM_000551.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 8 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
VHL | NM_000551.4 | c.430G>A | p.Gly144Arg | missense_variant | 2/3 | ENST00000256474.3 | |
VHL | NM_001354723.2 | c.*18-3184G>A | intron_variant | ||||
VHL | NM_198156.3 | c.341-3184G>A | intron_variant | ||||
VHL | NR_176335.1 | n.759G>A | non_coding_transcript_exon_variant | 3/4 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
VHL | ENST00000256474.3 | c.430G>A | p.Gly144Arg | missense_variant | 2/3 | 1 | NM_000551.4 | P1 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251494Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135920
GnomAD4 exome AF: 0.00000342 AC: 5AN: 1461708Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 727162
GnomAD4 genome ? Cov.: 32
ClinVar
Submissions by phenotype
Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jan 16, 2024 | This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 144 of the VHL protein (p.Gly144Arg). This variant is present in population databases (no rsID available, gnomAD 0.007%). This missense change has been observed in individual(s) with polycythemia and congenital erythrocytosis (PMID: 15921386, 24115288). ClinVar contains an entry for this variant (Variation ID: 576437). 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 with a positive predictive value of 95%. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. 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. - |
Von Hippel-Lindau syndrome;C0031511:Pheochromocytoma;C1837915:Chuvash polycythemia;CN074294:Nonpapillary renal cell carcinoma Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Dec 22, 2021 | - - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Mar 26, 2024 | The p.G144R variant (also known as c.430G>A), located in coding exon 2 of the VHL gene, results from a G to A substitution at nucleotide position 430. The glycine at codon 144 is replaced by arginine, an amino acid with dissimilar properties. This alteration has been reported in an individual with a pheochromocytoma and in an individual with a paraganglioma (Yates CJ et al. Med J Aust, 2011 Jan;194:44-5; Favier J et al. Mod Pathol, 2020 01;33:57-64). It has also been reported in individuals affected with polycythemia and erythrocytosis, in the heterozygous state (Randi ML et al. Haematologica, 2005 May;90:689-91), and in conjunction with a second alteration in VHL (Bento C et al. Hum Mutat, 2014 Jan;35:15-26; Lenglet M et al. Blood, 2018 08;132:469-483). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at