3-10142124-G-C

Position:

• chr3-10142124-G-C

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PM1 PM2 PM5 PP3_Strong PP5_Very_Strong

The NM_000551.4(VHL):​c.277G>C​(p.Gly93Arg) 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 Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G93S) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 33)
• Consequence: VHL NM_000551.4 missense
• Clinical Significance: Likely pathogenic criteria provided, multiple submitters, no conflicts P:3
• Conservation: PhyloP100: 6.04

Genes affected

VHL (HGNC:12687): (von Hippel-Lindau tumor suppressor) This gene encodes a component of a ubiquitination complex. The encoded protein is involved in the ubiquitination and degradation of hypoxia-inducible-factor (HIF), which is a transcription factor that plays a central role in the regulation of gene expression by oxygen. In addition to oxygen-related gene expression, this protein plays a role in many other cellular processes including cilia formation, cytokine signaling, regulation of senescence, and formation of the extracellular matrix. Variants of this gene are associated with von Hippel-Lindau syndrome, pheochromocytoma, erythrocytosis, renal cell carcinoma, and cerebellar hemangioblastoma. [provided by RefSeq, Jun 2022]

VHL (HGNC:):

ACMG classification

Verdict is Pathogenic. Variant got 18 ACMG points.

• PM1: In a chain von Hippel-Lindau disease tumor suppressor (size 212) in uniprot entity VHL_HUMAN there are 96 pathogenic changes around while only 8 benign (92%) in NM_000551.4
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chr3-10142124-G-A is described in Lovd as [Pathogenic].
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.987
• PP5: Variant 3-10142124-G-C is Pathogenic according to our data. Variant chr3-10142124-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 223174.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
VHL	NM_000551.4	c.277G>C	p.Gly93Arg	missense_variant	1/3	ENST00000256474.3	NP_000542.1
VHL	NM_001354723.2	c.277G>C	p.Gly93Arg	missense_variant	1/3		NP_001341652.1
VHL	NM_198156.3	c.277G>C	p.Gly93Arg	missense_variant	1/2		NP_937799.1
VHL	NR_176335.1	n.347G>C		non_coding_transcript_exon_variant	1/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
VHL	ENST00000256474.3	c.277G>C	p.Gly93Arg	missense_variant	1/3	1	NM_000551.4	ENSP00000256474.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Von Hippel-Lindau syndrome Pathogenic:1

Likely pathogenic, no assertion criteria provided

clinical testing

Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia

Feb 26, 2016

- -

Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Mar 11, 2022

In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. This variant disrupts the p.Gly93 amino acid residue in VHL. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 8707293, 9329368, 12000816, 17661816, 17922902). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. 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: 223174). This variant is also known as 490G>C (p.Gly93Arg). This missense change has been observed in individual(s) with VHL-related conditions (PMID: 20660572, 23660872; Invitae). This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glycine, which is neutral and non-polar, with arginine, which is basic and polar, at codon 93 of the VHL protein (p.Gly93Arg). -

Hereditary cancer-predisposing syndrome Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 19, 2018

The p.G93R variant (also known as c.277G>C), located in coding exon 1 of the VHL gene, results from a G to C substitution at nucleotide position 277. The glycine at codon 93 is replaced by arginine, an amino acid with dissimilar properties. This alteration, also designated as 490G>C in the literature, has been reported in multiple individuals having or suspected of having a diagnosis of VHL (Klein B et al. Hum. Genet. 2001 May;108:376-84; de Cubas AA et al. Endocr. Relat. Cancer. 2013 Aug;20:477-93; Bausch B et al. J Transl Med Epidemiol. 2014 2(1):1019.This amino acid position is highly 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. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.54	D
BayesDel_noAF	Pathogenic	0.54
CADD	Pathogenic	28
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.99	D;.
Eigen	Pathogenic	0.68
Eigen_PC	Uncertain	0.61
FATHMM_MKL	Pathogenic	0.97	D
LIST_S2	Uncertain	0.90	D;D
M_CAP	Pathogenic	1.0	D
MetaRNN	Pathogenic	0.99	D;D
MetaSVM	Pathogenic	0.96	D
MutationAssessor	Uncertain	2.6	M;M
PrimateAI	Pathogenic	0.86	D
PROVEAN	Pathogenic	-6.3	D;D
REVEL	Pathogenic	0.94
Sift	Pathogenic	0.0	.;D
Sift4G	Uncertain	0.0050	D;D
Polyphen		1.0	D;D
Vest4		0.92
MutPred		0.95		Gain of solvent accessibility (P = 0.0097);Gain of solvent accessibility (P = 0.0097);
MVP		1.0
MPC		1.2
ClinPred		1.0	D
GERP RS		4.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.93
gMVP		0.99

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs5030808; hg19: chr3-10183808; COSMIC: COSV56558995; COSMIC: COSV56558995;