rs397516444

chr3-10149808-G-Achr3-10149808-G-Cchr3-10149808-G-T

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.485G>A(p.Cys162Tyr) 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. C162F) has been classified as Pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: VHL NM_000551.4 missense
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3
• Conservation: PhyloP100: 5.64

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]

ACMG classification

Verdict is Pathogenic. Variant got 18 ACMG points.

• PM1: In a hotspot region, there are 14 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 10 uncertain 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 chr3-10149808-G-T is described in ClinVar as [Pathogenic]. Clinvar id is 43604.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.992
• PP5: Variant 3-10149808-G-A is Pathogenic according to our data. Variant chr3-10149808-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 223225.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
VHL	NM_000551.4	c.485G>A	p.Cys162Tyr	missense_variant	3/3	ENST00000256474.3
VHL	NM_198156.3	c.362G>A	p.Cys121Tyr	missense_variant	2/2
VHL	NM_001354723.2	c.*39G>A		3_prime_UTR_variant	3/3
VHL	NR_176335.1	n.814G>A		non_coding_transcript_exon_variant	4/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
VHL	ENST00000256474.3	c.485G>A	p.Cys162Tyr	missense_variant	3/3	1	NM_000551.4	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Von Hippel-Lindau syndrome Pathogenic:2

Likely pathogenic, criteria provided, single submitter	clinical testing	Genetics and Molecular Pathology, SA Pathology	Nov 02, 2020	PM2, PS4, PP3, PM3, PP5, PP4 -
Pathogenic, no assertion criteria provided	clinical testing	Genomic Diagnostic Laboratory, Division of Genomic Diagnostics, Children's Hospital of Philadelphia	Feb 26, 2016	- -

Hereditary cancer-predisposing syndrome Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 07, 2023

The p.C162Y variant (also known as c.485G>A), located in coding exon 3 of the VHL gene, results from a G to A substitution at nucleotide position 485. The cysteine at codon 162 is replaced by tyrosine, an amino acid with highly dissimilar properties. This alteration has been identified in multiple individuals with hemangioblastomas (Kondo K. Hum Mol Genet, 1995 Dec;4:2233-7; Woodward ER et al. Brain, 2007 Mar;130:836-42; de Rojas-P I et al. Cells, 2021 Sep;10; Ambry internal data). This alteration was also identified in families with von Hippel-Lindau (VHL) (Yoshida M et al. Jpn J Cancer Res, 2000 Feb;91:204-12, Zhang J et al. J Cancer Res Clin Oncol, 2008 Nov;134:1211-8). This alteration is also known as 698G>A in published literature. This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. This variant is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD). Another alteration at the same codon, p.C162R (c.484T>C), has been reported in numerous families diagnosed with VHL (Chen F et al. Hum Mutat. 1995;5:66-75; Gallou C et al. Hum. Mutat. 1999;13:464-75; Cho HJ et al. J. Korean Med. Sci. 2009 Feb;24:77-83; Zhang J et al. Chin Med J (Engl). 2015 Jan;128:32-8). Based on the supporting evidence, this alteration is interpreted as a disease-causing mutation. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.53	D
BayesDel_noAF	Pathogenic	0.52
Cadd	Pathogenic	28
Dann	Uncertain	1.0
DEOGEN2	Pathogenic	0.99	D;.
Eigen	Pathogenic	0.73
Eigen_PC	Pathogenic	0.69
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Uncertain	0.89	D;D
M_CAP	Pathogenic	0.72	D
MetaRNN	Pathogenic	0.99	D;D
MetaSVM	Pathogenic	0.97	D
MutationAssessor	Uncertain	2.3	M;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Pathogenic	0.86	D
PROVEAN	Pathogenic	-8.0	D;D
REVEL	Pathogenic	0.90
Sift4G	Uncertain	0.0020	D;D
Polyphen		1.0	D;D
Vest4		0.89
MutPred		0.98		Loss of helix (P = 0.0196);.;
MVP		1.0
MPC		1.4
ClinPred		1.0	D
GERP RS		4.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.97
gMVP		0.96

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs397516444; hg19: chr3-10191492; COSMIC: COSV56546524;