rs864622109

Positions:

• chr3-10149878-C-A
• chr3-10149878-C-G
• chr3-10149878-C-T

Variant summary

Our verdict is Pathogenic. Variant got 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_000551.4(VHL):​c.555C>A​(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 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 criteria provided, single submitter P:1
• 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 12 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-A is Pathogenic according to our data. Variant chr3-10149878-C-A is described in ClinVar as [Pathogenic]. Clinvar id is 2925348.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
VHL	NM_000551.4	c.555C>A	p.Tyr185Ter	stop_gained	3/3	ENST00000256474.3
VHL	NM_198156.3	c.432C>A	p.Tyr144Ter	stop_gained	2/2
VHL	NM_001354723.2	c.*109C>A		3_prime_UTR_variant	3/3
VHL	NR_176335.1	n.884C>A		non_coding_transcript_exon_variant	4/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
VHL	ENST00000256474.3	c.555C>A	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

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

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

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Feb 05, 2023

This sequence change creates a premature translational stop signal (p.Tyr185*) in the VHL gene. While this is not anticipated to result in nonsense mediated decay, it is expected to disrupt the last 29 amino acid(s) of the VHL protein. This variant is not present in population databases (gnomAD no frequency). This premature translational stop signal has been observed in individual(s) with clinical features of von Hippel-Lindau disease (PMID: 23298237, 33720516). This variant disrupts a region of the VHL protein in which other variant(s) (p.Leu188Val) have been determined to be pathogenic (PMID: 7563486, 7987306, 8772572, 19228690, 23772956). This suggests that this is a clinically significant region of the protein, and that variants that disrupt it are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic. -

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	0.60	D
MutationTaster	Benign	1.0	D;D
Vest4		0.88
GERP RS		-5.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr3-10191562; COSMIC: COSV56546536;