chr3-10141869-T-G

Position:

• chr3-10141869-T-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM1 BP4_Strong

The NM_000551.4(VHL):​c.22T>G​(p.Trp8Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000506 in 1,382,864 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000051 (0 hom.)
• Consequence: VHL NM_000551.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: -1.85

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 (HGNC:):

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM1: In a chain von Hippel-Lindau disease tumor suppressor (size 212) in uniprot entity VHL_HUMAN there are 96 pathogenic changes around while only 8 benign (92%) in NM_000551.4
• BP4: Computational evidence support a benign effect (MetaRNN=0.056491137).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
VHL	NM_000551.4	c.22T>G	p.Trp8Gly	missense_variant	1/3	ENST00000256474.3	NP_000542.1
VHL	NM_001354723.2	c.22T>G	p.Trp8Gly	missense_variant	1/3		NP_001341652.1
VHL	NM_198156.3	c.22T>G	p.Trp8Gly	missense_variant	1/2		NP_937799.1
VHL	NR_176335.1	n.92T>G		non_coding_transcript_exon_variant	1/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
VHL	ENST00000256474.3	c.22T>G	p.Trp8Gly	missense_variant	1/3	1	NM_000551.4	ENSP00000256474.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000506 AC: 7 AN: 1382864 Hom.: 0 Cov.: 32 AF XY: 0.00000294 AC XY: 2 AN XY: 680218

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.000198

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Apr 27, 2023

- -

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

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 17, 2021

This sequence change replaces tryptophan, which is neutral and slightly polar, with glycine, which is neutral and non-polar, at codon 8 of the VHL protein (p.Trp8Gly). 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. 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	0.043
BayesDel_addAF	Benign	-0.15	T
BayesDel_noAF	Benign	-0.45
CADD	Benign	1.7
DANN	Benign	0.43
DEOGEN2	Benign	0.33	T;.
Eigen	Benign	-1.7
Eigen_PC	Benign	-1.8
FATHMM_MKL	Benign	0.028	N
LIST_S2	Benign	0.36	T;T
M_CAP	Benign	0.032	D
MetaRNN	Benign	0.056	T;T
MetaSVM	Benign	-0.73	T
MutationAssessor	Benign	0.0	N;N
PrimateAI	Benign	0.46	T
PROVEAN	Benign	-0.70	N;N
REVEL	Benign	0.24
Sift	Benign	0.14	.;T
Sift4G	Benign	0.26	T;T
Polyphen		0.0	B;B
Vest4		0.053
MutPred		0.29		Gain of sheet (P = 0.0125);Gain of sheet (P = 0.0125);
MVP		0.49
MPC		0.82
ClinPred		0.089	T
GERP RS		-4.9
Varity_R		0.19
gMVP		0.41

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: rs1352171735; hg19: chr3-10183553;