chr3-10141938-G-T

Variant names:

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1PM2

The NM_000551.4(VHL):c.91G>T(p.Glu31*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000072 in 1,388,778 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 Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. E31E) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

VHL
NM_000551.4 stop_gained

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 0.164

Publications

0 publications found

Variant links:

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 Gene-Disease associations (from GenCC):

pheochromocytoma
Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
von Hippel-Lindau disease
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Genomics England PanelApp, Labcorp Genetics (formerly Invitae), G2P, Orphanet
renal cell carcinoma
Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
autosomal recessive secondary polycythemia not associated with VHL gene
Inheritance: AR Classification: STRONG Submitted by: Ambry Genetics
Chuvash polycythemia
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Orphanet
hereditary pheochromocytoma-paraganglioma
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

VHL links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 10 ACMG points.

PVS1

Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant located near the start codon (<100nt), not predicted to undergo nonsense mediated mRNA decay. There are 409 pathogenic variants in the truncated region.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
VHL	NM_000551.4 link	c.91G>T	p.Glu31*	stop_gained	Exon 1 of 3	ENST00000256474.3	NP_000542.1
VHL	NM_001354723.2 link	c.91G>T	p.Glu31*	stop_gained	Exon 1 of 3		NP_001341652.1
VHL	NM_198156.3 link	c.91G>T	p.Glu31*	stop_gained	Exon 1 of 2		NP_937799.1
VHL	NR_176335.1 link	n.161G>T		non_coding_transcript_exon_variant	Exon 1 of 4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
VHL	ENST00000256474.3 link	c.91G>T	p.Glu31*	stop_gained	Exon 1 of 3	1	NM_000551.4	ENSP00000256474.3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.20e-7

AC:

AN:

1388778

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

683470

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31172

American (AMR)

AF:

0.00

AC:

AN:

34976

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24824

East Asian (EAS)

AF:

0.00

AC:

AN:

35558

South Asian (SAS)

AF:

0.00

AC:

AN:

78386

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48094

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4444

European-Non Finnish (NFE)

AF:

9.31e-7

AC:

AN:

1073916

Other (OTH)

AF:

0.00

AC:

AN:

57408

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Von Hippel-Lindau syndrome

Uncertain:1

May 10, 2017

Counsyl

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

Chuvash polycythemia

Uncertain:1

Dec 05, 2023

Baylor Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia

Uncertain:1

May 06, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change creates a premature translational stop signal (p.Glu31*) in the VHL gene. It is unclear whether it will result in an absent or disrupted protein product because an in-frame methionine located at codon 54 has the potential to rescue this variant. This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with VHL-related conditions. ClinVar contains an entry for this variant (Variation ID: 456598). RNA analysis performed to evaluate the impact of this premature translational stop signal on mRNA splicing indicates it does not significantly alter splicing (Invitae). Several studies have shown that the VHL protein created from a downstream methionine located at codon 54 is biologically active, and exhibits properties similar to the full-length, wild-type protein (PMID: 9671762, 9751722). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Hereditary cancer-predisposing syndrome

Uncertain:1

Sep 08, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.E31* variant (also known as c.91G>T), located in coding exon 1 of the VHL gene, results from a G to T substitution at nucleotide position 91. This changes the amino acid from a glutamic acid to a stop codon within coding exon 1. The predicted stop codon occurs in the 5’ end of theVHL gene. Premature stop codons are typically deleterious in nature; however, an alternate initiation codon exists 23 residues downstream from this alteration and is reported to result in a biologically active isoform known as VHL19 (Schoenfeld A et al. Proc. Natl. Acad. Sci. U.S.A. 1998 Jul; 95(15):8817-22; Iliopoulos O et al. Proc. Natl. Acad. Sci. U.S.A. 1998 Sep; 95(20):11661-6). Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Von Hippel-Lindau syndrome;C0031511:Pheochromocytoma;C1837915:Chuvash polycythemia;CN074294:Nonpapillary renal cell carcinoma

Uncertain:1

Jun 10, 2024

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.62

BayesDel_noAF

Pathogenic

0.22

CADD

Pathogenic

(source)

DANN

Uncertain

0.98

Eigen

Benign

0.13

Eigen_PC

Benign

-0.29

FATHMM_MKL

Benign

0.32

PhyloP100

0.16

Vest4

0.60

GERP RS

-0.12

PromoterAI

-0.14

Neutral

(source)

RBP_binding_hub_radar

0.92

RBP_regulation_power_radar

2.0

Mutation Taster

=12/188

disease causing (fs/PTC)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over