3-10141873-A-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.26A>T(p.Asp9Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000723 in 1,382,492 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 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. D9E) 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, multiple submitters, no conflicts U:3

Conservation

PhyloP100: -0.739

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=0.075360715).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein
VHL	NM_000551.4 link	c.26A>T	p.Asp9Val	missense_variant	Exon 1 of 3	ENST00000256474.3	NP_000542.1
VHL	NM_001354723.2 link	c.26A>T	p.Asp9Val	missense_variant	Exon 1 of 3		NP_001341652.1
VHL	NM_198156.3 link	c.26A>T	p.Asp9Val	missense_variant	Exon 1 of 2		NP_937799.1
VHL	NR_176335.1 link	n.96A>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.26A>T	p.Asp9Val	missense_variant	Exon 1 of 3	1	NM_000551.4	ENSP00000256474.3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

7.23e-7

AC:

AN:

1382492

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

679936

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

30892

American (AMR)

AF:

0.00

AC:

AN:

34086

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24482

East Asian (EAS)

AF:

0.0000283

AC:

AN:

35334

South Asian (SAS)

AF:

0.00

AC:

AN:

77706

European-Finnish (FIN)

AF:

0.00

AC:

AN:

48020

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4020

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1070896

Other (OTH)

AF:

0.00

AC:

AN:

57056

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

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:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Von Hippel-Lindau syndrome;C1837915:Chuvash polycythemia

Uncertain:1

Nov 21, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with valine, which is neutral and non-polar, at codon 9 of the VHL protein (p.Asp9Val). 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: 1946377). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt VHL protein function with a negative predictive value of 95%. 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 20, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.D9V variant (also known as c.26A>T), located in coding exon 1 of the VHL gene, results from an A to T substitution at nucleotide position 26. The aspartic acid at codon 9 is replaced by valine, an amino acid with highly dissimilar properties. This amino acid position is not well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. 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

Jan 19, 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

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.12

BayesDel_noAF

Benign

-0.40

CADD

Benign

(source)

DANN

Benign

0.50

DEOGEN2

Benign

0.32

T;.

Eigen

Benign

-1.3

Eigen_PC

Benign

-1.4

FATHMM_MKL

Benign

0.26

LIST_S2

Benign

0.62

T;T

M_CAP

Benign

0.077

MetaRNN

Benign

0.075

T;T

MetaSVM

Benign

-0.75

MutationAssessor

Benign

-0.55

N;N

PhyloP100

-0.74

PrimateAI

Uncertain

0.54

PROVEAN

Benign

-0.57

N;N

REVEL

Benign

0.20

Sift

Pathogenic

0.0

.;D

Sift4G

Benign

0.19

T;T

Vest4

0.059

ClinPred

0.33

GERP RS

0.018

PromoterAI

-0.045

Neutral

(source)

RBP_binding_hub_radar

0.97

RBP_regulation_power_radar

2.1

Varity_R

0.19

gMVP

0.45

Mutation Taster

=99/1

polymorphism

(source)

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

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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