NM_000551.4:c.250G>C
Variant summary
Our verdict is Pathogenic. The variant received 26 ACMG points: 26P and 0B. PS1_Very_StrongPM1PM2PM5PP3_StrongPP5_Very_Strong
The NM_000551.4(VHL):c.250G>C(p.Val84Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,198 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 Pathogenic (★★). Another nucleotide change resulting in the same amino acid substitution has been previously reported as Pathogenic in ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V84A) 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
Genome browser will be placed here
ACMG classification
Our verdict: Pathogenic. The variant received 26 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_000551.4. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| VHL | NM_000551.4 | MANE Select | c.250G>C | p.Val84Leu | missense | Exon 1 of 3 | NP_000542.1 | ||
| VHL | NM_001354723.2 | c.250G>C | p.Val84Leu | missense | Exon 1 of 3 | NP_001341652.1 | |||
| VHL | NM_198156.3 | c.250G>C | p.Val84Leu | missense | Exon 1 of 2 | NP_937799.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| VHL | ENST00000256474.3 | TSL:1 MANE Select | c.250G>C | p.Val84Leu | missense | Exon 1 of 3 | ENSP00000256474.3 | ||
| VHL | ENST00000345392.3 | TSL:1 | c.250G>C | p.Val84Leu | missense | Exon 1 of 2 | ENSP00000344757.2 | ||
| VHL | ENST00000477538.2 | TSL:1 | n.296G>C | non_coding_transcript_exon | Exon 1 of 3 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152198Hom.: 0 Cov.: 33 show subpopulations
GnomAD4 exome Cov.: 32
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152198Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74348 show subpopulations
ClinVar
Submissions by phenotype
Von Hippel-Lindau syndrome Pathogenic:3
Variant summary: This c.250G>C variant affects a conserved nucleotide, resulting in amino acid change from Val to Leu in beta domain of VHL protein. 2/4 in-silico tools predict this variant to be damaging. This variant was not found in approximately 99326 chromosomes from ExAC. This variant has been reported in one VHL patient as a de novo occurrence (Leonardi_2011) and in other two VHL patients as somatic occurrence (Burnichon_2011, Pena-Llopis_2013). Another nucleotide change c.250G>T leading to the same amino acid change is a known pathogenic variant, strongly supporting that this nucleotide change is also pathogenic. Functional studies show that p.V84L mutant impairs in forming stable pVHL-ElonginC-ElonginB (VCB) complexes which is implicated in the disease (Knauth_2009). Taken together, this variant has been classified as a Pathogenic.
Absent from controls (or at extremely low frequency if recessive) in Genome Aggregation Database, Exome Sequencing Project, 1000 Genomes Project, or Exome Aggregation Consortium.;Same amino acid change as a previously established pathogenic variant regardless of nucleotide change.;The prevalence of the variant in affected individuals is significantly increased compared to the prevalence in controls.;Assumed de novo, but without confirmation of paternity and maternity.;Well-established in vitro or in vivo functional studies supportive of a damaging effect on the gene or gene product.;Patient's phenotype or family history is highly specific for a disease with a single genetic etiology.
Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia Pathogenic:1
This sequence change replaces valine, which is neutral and non-polar, with leucine, which is neutral and non-polar, at codon 84 of the VHL protein (p.Val84Leu). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with von Hippel-Lindau syndrome (PMID: 8592333, 11409863, 16502427, 19215943, 19270817, 25078357). In at least one individual the variant was observed to be de novo. ClinVar contains an entry for this variant (Variation ID: 229860). 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: 11331612, 11331613, 12510195, 19228690, 19602254, 21791076). For these reasons, this variant has been classified as Pathogenic.
Hereditary cancer-predisposing syndrome Pathogenic:1
The p.V84L pathogenic mutation (also known as c.250G>C and p.V155L), located in coding exon 1 of the VHL gene, results from a G to C substitution at nucleotide position 250. The valine at codon 84 is replaced by leucine, an amino acid with highly similar properties. This variant has been reported in apparent de novo transmission in one individual with pheochromocytoma, out of a cohort of 426 unrelated individuals presenting with clinical suspicion for VHL (Leonardi E et al. Ann. Hum. Genet. 2011 Jul; 75(4):483-96). Additionally, a well described mutation at the same position (c.250G>T), also resulting in the valine at codon 84 being replaced by leucine, has been identified in a number of families with early-onset pheochromocytomas (VHL type 2C) (Crossey PA et al. J. Med. Genet.1995 Nov; 32(11):885-6; Abbott MA et al. Am. J. Med. Genet. A 2006 Apr; 140(7):685-90). Based on the available evidence, p.V84L is classified as a pathogenic mutation.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at