3-10149878-C-G

Position:

• chr3-10149878-C-G

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PVS1 PM2 PP5_Very_Strong

The NM_000551.4(VHL):​c.555C>G​(p.Tyr185Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. 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 (★★). Synonymous variant affecting the same amino acid position (i.e. Y185Y) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: VHL NM_000551.4 stop_gained
• Clinical Significance: Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3
• Conservation: PhyloP100: -0.244

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.

• PVS1: Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. There are 35 pathogenic variants in the truncated region.
• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 3-10149878-C-G is Pathogenic according to our data. Variant chr3-10149878-C-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 223233.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.555C>G	p.Tyr185Ter	stop_gained	3/3	ENST00000256474.3
VHL	NM_198156.3	c.432C>G	p.Tyr144Ter	stop_gained	2/2
VHL	NM_001354723.2	c.*109C>G		3_prime_UTR_variant	3/3
VHL	NR_176335.1	n.884C>G		non_coding_transcript_exon_variant	4/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
VHL	ENST00000256474.3	c.555C>G	p.Tyr185Ter	stop_gained	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:1

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

Feb 08, 2020

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.Leu188 amino acid residue in VHL. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 7563486, 8772572, 7987306, 23772956, 19228690). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site, but this prediction has not been confirmed by published transcriptional studies. This variant has been observed in individual(s) with von Hippel-Lindau disease (PMID: 23298237, 7987306). This variant is also known as Tyr256Ter in the literature. ClinVar contains an entry for this variant (Variation ID: 223233). This variant is not present in population databases (ExAC no frequency). This sequence change results in a premature translational stop signal in the VHL gene (p.Tyr185*). While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 29 amino acids of the VHL protein. -

Hereditary cancer-predisposing syndrome Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 22, 2019

The p.Y185* pathogenic mutation (also known as c.555C>G), located in coding exon 3 of the VHL gene, results from a C to G substitution at nucleotide position 555. This changes the amino acid from a tyrosine to a stop codon within coding exon 3. This mutation has been detected in multiple VHL patients (Crossey PA et al. Hum. Mol. Genet. 1994 Aug;3(8):1303-8; Zbar B et al. Hum. Mutat. 1996;8(4):348-57; Stolle C et al. Hum. Mutat. 1998;12(6):417-23). In addition, this mutation was detected as a somatic mutation in a primary sporadic renal cell cancer (Whaley JM et al. Am. J. Hum. Genet. 1994 Dec;55(6):1092-102). Of note, this alteration has also been designated as 768C>G and Tyr256Ter in published literature. In addition to the clinical data presented in the literature, this alteration is expected to result in loss of function by premature protein truncation. As such, this alteration is interpreted as a disease-causing mutation. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.62	D
BayesDel_noAF	Pathogenic	0.41
CADD	Uncertain	24
DANN	Benign	0.97
Eigen	Benign	-0.22
Eigen_PC	Benign	-0.52
FATHMM_MKL	Benign	0.62	D
MutationTaster	Benign	1.0	D;D
Vest4		0.88
GERP RS		-5.0

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: rs864622109; hg19: chr3-10191562; COSMIC: COSV56542593;