NM_000551.4:c.29A>G

Variant names:

• chr3-10141876-A-G
• rs786204065
• NM_000551.4:c.29A>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_000551.4(VHL):​c.29A>G​(p.Glu10Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000724 in 1,381,284 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. E10K) 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
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 0.456
• Publications: 0 publications found

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

ACMG classification

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=0.107682854).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000551.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VHL	NM_000551.4	MANE Select	c.29A>G	p.Glu10Gly	missense	Exon 1 of 3	NP_000542.1
	VHL	NM_001354723.2		c.29A>G	p.Glu10Gly	missense	Exon 1 of 3	NP_001341652.1
	VHL	NM_198156.3		c.29A>G	p.Glu10Gly	missense	Exon 1 of 2	NP_937799.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	VHL	ENST00000256474.3	TSL:1 MANE Select	c.29A>G	p.Glu10Gly	missense	Exon 1 of 3	ENSP00000256474.3
	VHL	ENST00000345392.3	TSL:1	c.29A>G	p.Glu10Gly	missense	Exon 1 of 2	ENSP00000344757.2
	VHL	ENST00000477538.2	TSL:1	n.75A>G		non_coding_transcript_exon	Exon 1 of 3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 7.24e-7 AC: 1 AN: 1381284 Hom.: 0 Cov.: 32 AF XY: 0.00000147 AC XY: 1 AN XY: 679158

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.00 AC: 0 AN: 30858

American (AMR) AF: 0.00 AC: 0 AN: 34034

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 24414

East Asian (EAS) AF: 0.00 AC: 0 AN: 35314

South Asian (SAS) AF: 0.00 AC: 0 AN: 77576

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 48020

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 4016

European-Non Finnish (NFE) AF: 9.35e-7 AC: 1 AN: 1070068

Other (OTH) AF: 0.00 AC: 0 AN: 56984

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

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

Dec 16, 2020

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces glutamic acid with glycine at codon 10 of the VHL protein (p.Glu10Gly). The glutamic acid residue is moderately conserved and there is a moderate physicochemical difference between glutamic acid and glycine. 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. Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The glycine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. 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

Jun 04, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.E10G variant (also known as c.29A>G), located in coding exon 1 of the VHL gene, results from an A to G substitution at nucleotide position 29. The glutamic acid at codon 10 is replaced by glycine, an amino acid with similar properties. This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be tolerated by in silico analysis. Based on the available evidence, the clinical significance of this variant remains unclear.

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.073
BayesDel_addAF	Benign	-0.033	T
BayesDel_noAF	Benign	-0.29
CADD	Benign	14
DANN	Benign	0.96
DEOGEN2	Benign	0.36	T
Eigen	Benign	-0.97
Eigen_PC	Benign	-1.0
FATHMM_MKL	Benign	0.24	N
LIST_S2	Benign	0.42	T
M_CAP	Benign	0.075	D
MetaRNN	Benign	0.11	T
MetaSVM	Benign	-0.71	T
MutationAssessor	Benign	0.55	N
PhyloP100		0.46
PrimateAI	Uncertain	0.58	T
PROVEAN	Benign	-0.67	N
REVEL	Benign	0.12
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.046	D
Polyphen		0.0	B
Vest4		0.11
MutPred		0.27		Loss of helix (P = 0.0104)
MVP		0.92
MPC		0.65
ClinPred		0.31	T
GERP RS		1.4
PromoterAI		-0.13	Neutral
Varity_R		0.21
gMVP		0.43
Mutation Taster		=97/3	polymorphism

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

Other links and lift over

dbSNP: rs786204065; hg19: chr3-10183560; COSMIC: COSV56568464;