rs5030802
Variant summary
Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM1PM2PP3_ModeratePP5_Very_Strong
The NM_000551.4(VHL):c.208G>A(p.Glu70Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000688 in 1,453,984 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 Likely pathogenic (★★).
Frequency
Consequence
NM_000551.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 14 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
VHL | NM_000551.4 | c.208G>A | p.Glu70Lys | missense_variant | Exon 1 of 3 | ENST00000256474.3 | NP_000542.1 | |
VHL | NM_001354723.2 | c.208G>A | p.Glu70Lys | missense_variant | Exon 1 of 3 | NP_001341652.1 | ||
VHL | NM_198156.3 | c.208G>A | p.Glu70Lys | missense_variant | Exon 1 of 2 | NP_937799.1 | ||
VHL | NR_176335.1 | n.278G>A | non_coding_transcript_exon_variant | Exon 1 of 4 |
Ensembl
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD3 exomes AF: 0.00000436 AC: 1AN: 229104Hom.: 0 AF XY: 0.00000791 AC XY: 1AN XY: 126422
GnomAD4 exome AF: 6.88e-7 AC: 1AN: 1453984Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1AN XY: 723244
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
Von Hippel-Lindau syndrome Pathogenic:6
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Variant summary: VHL c.208G>A (p.Glu70Lys) results in a conservative amino acid change located in the von Hippel-Lindau disease tumour suppressor, beta/alpha domain (IPR022772) of the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 4.4e-06 in 229204 control chromosomes (gnomAD). c.208G>A has been reported in the literature in multiple individuals affected with Von Hippel-Lindau Syndrome (examples: Hes_2007 and Hwang_2014). These data indicate that the variant is very likely to be associated with disease. Four clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar after 2014 and all classified the variant as pathogenic/likely pathogenic. Based on the evidence outlined above, the variant was classified as pathogenic. -
VHL E70K (c.208G>A) is Likely Pathogenic. E70K missense variant occurs at a very low allele frequency in the general population (0.00001489 allele frequency in ExAC, 4.365e-6 allele frequency in gnomAD) and was previously identified in several unrelated individuals with VHL disease symptoms (see evidence statements). PM1 (6860); PM2 (per above); PP1 (5805); PP4 (5805;6742). -
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This variant is considered likely pathogenic. Functional studies indicate this variant impacts protein function [PMID: 15611064]. This variant has been reported in multiple individuals with clinical features of gene-specific disease [PMID: 25078357, 27439424, 36384467, 31087189]. -
Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia Pathogenic:1
This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 70 of the VHL protein (p.Glu70Lys). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This missense change has been observed in individuals with clinical features of von Hippel-Lindau syndrome (VHL) (PMID: 9829912, 17661816, 19270817, 19408298, 25078357, 25562111, 25715769, 27439424; Invitae). It is commonly reported in individuals of Korean ancestry (PMID: 25078357). ClinVar contains an entry for this variant (Variation ID: 43598). 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%. Experimental studies are conflicting or provide insufficient evidence to determine the effect of this variant on VHL function (PMID: 15611064). For these reasons, this variant has been classified as Pathogenic. -
Hereditary cancer-predisposing syndrome Pathogenic:1
The p.E70K variant (also known as c.208G>A), located in coding exon 1 of the VHL gene, results from a G to A substitution at nucleotide position 208. The glutamic acid at codon 70 is replaced by lysine, an amino acid with similar properties. Some studies have proposed this alteration as a Korean hotspot mutation that causes a phenotype consistent with VHL type 1 (Hwang S et al. J. Hum. Genet. 2014 Sep;59(9):488-93; Lee JS et al. BMC Med. Genet. 2016 Jul;17(1):48). It has been identified in many unrelated Korean families with histories of central nervous system and retinal hemangioblastomas (Olschwang S et al. Hum Mut. 1998;12:424; Hes FJ et al. Clin Genet. 2007;72:122; Cho HJ et al. J Korean Med Sci. 2009 Feb;24(1):77-83; Hwang S et al. J. Hum. Genet. 2014 Sep;59(9):488-93; Lee JS et al. BMC Med. Genet. 2016 Jul;17(1):48). It was also seen in a 74-year-old Korean patient with renal clear cell carcinoma and central nervous system hemangioblastomas, as well as a colorectal adenocarcinoma. This patient's two brothers, also presenting with renal cell carcinoma, were positive for the p.E70K alteration (Heo SJ et al. Cancer Res Treat. 2016 Jan;48(1):409-14). In addition, a functional study demonstrated that this alteration led to a modest reduction (20%) in the ability of the VHL protein to bind with the alpha subunit of the hypoxia-inducible transcription factor (HIF) and failure to degrade HIF-2 alpha (Miller F et al. J Biol Chemistry. 2005;280(9):7986). Based on the majority of available evidence to date, this variant is likely to be pathogenic. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at