3-10141918-G-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_000551.4(VHL):c.71G>T(p.Gly24Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000721 in 1,387,288 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G24S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

VHL
NM_000551.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.790

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: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.1148884).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
VHL	NM_000551.4 link	c.71G>T	p.Gly24Val	missense_variant	Exon 1 of 3	ENST00000256474.3	NP_000542.1	P40337-1A0A024R2F2
VHL	NM_001354723.2 link	c.71G>T	p.Gly24Val	missense_variant	Exon 1 of 3		NP_001341652.1
VHL	NM_198156.3 link	c.71G>T	p.Gly24Val	missense_variant	Exon 1 of 2		NP_937799.1	P40337-2A0A0S2Z4K1
VHL	NR_176335.1 link	n.141G>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.71G>T	p.Gly24Val	missense_variant	Exon 1 of 3	1	NM_000551.4	ENSP00000256474.3		P40337-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.21e-7

AC:

AN:

1387288

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

682662

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31148

American (AMR)

AF:

0.00

AC:

AN:

34886

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24676

East Asian (EAS)

AF:

0.00

AC:

AN:

35522

South Asian (SAS)

AF:

0.00

AC:

AN:

77860

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48186

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4216

European-Non Finnish (NFE)

AF:

9.32e-7

AC:

AN:

1073468

Other (OTH)

AF:

0.00

AC:

AN:

57326

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.625

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia

Uncertain:1

May 31, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces glycine with valine at codon 24 of the VHL protein (p.Gly24Val). The glycine residue is weakly conserved and there is a moderate physicochemical difference between glycine and valine. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate insufficient coverage at this position in the ExAC database. This variant has not been reported in the literature in individuals with VHL-related conditions. 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 not expected to disrupt VHL protein function. 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. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Uncertain

0.051

BayesDel_noAF

Benign

-0.17

CADD

Benign

(source)

DANN

Benign

0.92

DEOGEN2

Benign

0.37

T;.

Eigen

Benign

-0.76

Eigen_PC

Benign

-0.86

FATHMM_MKL

Benign

0.23

LIST_S2

Uncertain

0.88

D;D

M_CAP

Benign

0.048

MetaRNN

Benign

0.11

T;T

MetaSVM

Benign

-0.63

MutationAssessor

Benign

0.69

N;N

PhyloP100

0.79

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-0.67

N;N

REVEL

Uncertain

0.31

Sift

Pathogenic

0.0

.;D

Sift4G

Uncertain

0.038

D;D

Polyphen

0.16

B;P

Vest4

0.21

MutPred

0.23

Gain of glycosylation at Y23 (P = 0.0012);Gain of glycosylation at Y23 (P = 0.0012);

MVP

0.99

MPC

1.2

ClinPred

0.45

GERP RS

1.4

PromoterAI

-0.019

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.087

gMVP

0.56

Mutation Taster

=86/14

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over