3-10149937-G-T

Position:

• chr3-10149937-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM1 BP4

The NM_000551.4(VHL):​c.614G>T​(p.Arg205Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 1,461,768 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. R205H) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.000013 (0 hom.)
• Consequence: VHL NM_000551.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:3
• Conservation: PhyloP100: 1.99

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 Uncertain_significance. Variant got 1 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=0.3289849).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
VHL	NM_000551.4	c.614G>T	p.Arg205Leu	missense_variant	3/3	ENST00000256474.3	NP_000542.1
VHL	NM_198156.3	c.491G>T	p.Arg164Leu	missense_variant	2/2		NP_937799.1
VHL	NM_001354723.2	c.*168G>T		3_prime_UTR_variant	3/3		NP_001341652.1
VHL	NR_176335.1	n.943G>T		non_coding_transcript_exon_variant	4/4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
VHL	ENST00000256474.3	c.614G>T	p.Arg205Leu	missense_variant	3/3	1	NM_000551.4	ENSP00000256474.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.0000130 AC: 19 AN: 1461768 Hom.: 0 Cov.: 30 AF XY: 0.0000124 AC XY: 9 AN XY: 727180

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000171

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Von Hippel-Lindau syndrome Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

All of Us Research Program, National Institutes of Health

Dec 13, 2023

This missense variant replaces arginine with leucine at codon 205 of the VHL protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with hereditary cancer in the literature. This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -

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

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Aug 11, 2023

This sequence change replaces arginine, which is basic and polar, with leucine, which is neutral and non-polar, at codon 205 of the VHL protein (p.Arg205Leu). 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: 456592). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on 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. -

Hereditary cancer-predisposing syndrome Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 02, 2022

The p.R205L variant (also known as c.614G>T), located in coding exon 3 of the VHL gene, results from a G to T substitution at nucleotide position 614. The arginine at codon 205 is replaced by leucine, an amino acid with dissimilar properties. In an algorithmic assessment of missense alteration severity in the VHL protein, incorporating aggregation propensity, protein-protein interactions, secondary structure, conformational flexibility, solvent accessibility, protein stability, post-translational modification and translational rate, the p.R205L alteration was considered to be low risk (Fields FR et al. PLoS One, 2020 Nov;15:e0234100). This amino acid position is poorly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Pathogenic	0.17	D
BayesDel_noAF	Uncertain	0.0
CADD	Benign	20
DANN	Uncertain	0.99
DEOGEN2	Pathogenic	0.82	D;.
Eigen	Benign	-0.60
Eigen_PC	Benign	-0.46
FATHMM_MKL	Benign	0.75	D
LIST_S2	Benign	0.71	T;T
M_CAP	Pathogenic	0.49	D
MetaRNN	Benign	0.33	T;T
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Benign	1.0	L;.
PrimateAI	Benign	0.38	T
PROVEAN	Benign	-1.8	N;N
REVEL	Uncertain	0.61
Sift	Benign	0.059	.;T
Sift4G	Benign	0.096	T;T
Polyphen		0.0	B;B
Vest4		0.17
MutPred		0.56		Loss of disorder (P = 0.0199);.;
MVP		0.98
MPC		0.46
ClinPred		0.24	T
GERP RS		3.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.86
gMVP		0.62

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: rs777130107; hg19: chr3-10191621;