NM_000551.4(VHL):c.364G>A (p.Ala122Thr) AND multiple conditions

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Feb 22, 2023
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV001858145.5

Allele description [Variation Report for NM_000551.4(VHL):c.364G>A (p.Ala122Thr)]

NM_000551.4(VHL):c.364G>A (p.Ala122Thr)

Genes:

LOC107303340:3p25 von Hippel-Lindau tumor suppressor, E3 ubiquitin protein ligase Alu-mediated recombination region [Gene]
VHL:von Hippel-Lindau tumor suppressor [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

3p25.3

Genomic location:

Preferred name:

NM_000551.4(VHL):c.364G>A (p.Ala122Thr)

HGVS:

NC_000003.12:g.10146537G>A
NG_008212.3:g.9903G>A
NG_046756.1:g.4299G>A
NM_000551.4:c.364G>AMANE SELECT
NM_001354723.2:c.*18-3250G>A
NM_198156.3:c.341-3250G>A
NP_000542.1:p.Ala122Thr
NP_000542.1:p.Ala122Thr
LRG_322t1:c.364G>A
LRG_322:g.9903G>A
LRG_322p1:p.Ala122Thr
NC_000003.11:g.10188221G>A
NM_000551.3:c.364G>A

Protein change:

A122T

Links:

dbSNP: rs1064793291

NCBI 1000 Genomes Browser:

rs1064793291

Molecular consequence:

NM_001354723.2:c.*18-3250G>A - intron variant - [Sequence Ontology: SO:0001627]
NM_198156.3:c.341-3250G>A - intron variant - [Sequence Ontology: SO:0001627]
NM_000551.4:c.364G>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:: Chuvash polycythemia
Synonyms:: POLYCYTHEMIA, VHL-DEPENDENT; Erythrocytosis, familial, 2
Identifiers:: MONDO: MONDO:0009892; MedGen: C1837915; Orphanet: 238557; OMIM: 263400

Name:: Von Hippel-Lindau syndrome (VHLS)
Synonyms:: VHL syndrome; Von Hippel-Lindau
Identifiers:: MONDO: MONDO:0008667; MedGen: C0019562; Orphanet: 892; OMIM: 193300

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV002150252	Invitae	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Feb 22, 2023)	germline	clinical testing	PubMed (1) [See all records that cite this PMID]

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV002150252

Invitae

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Feb 22, 2023)

germline

clinical testing

PubMed (1)
[See all records that cite this PMID]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	clinical testing

Citations

PubMed

Sherloc: a comprehensive refinement of the ACMG-AMP variant classification criteria.

Nykamp K, Anderson M, Powers M, Garcia J, Herrera B, Ho YY, Kobayashi Y, Patil N, Thusberg J, Westbrook M; Invitae Clinical Genomics Group., Topper S.

Genet Med. 2017 Oct;19(10):1105-1117. doi: 10.1038/gim.2017.37. Epub 2017 May 11. Erratum in: Genet Med. 2020 Jan;22(1):240. doi: 10.1038/s41436-019-0624-9.

PubMed [citation]

PMID:: 28492532
PMCID:: PMC5632818

Details of each submission

From Invitae, SCV002150252.3

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (1)

Description

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 122 of the VHL protein (p.Ala122Thr). 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: 480791). 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 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.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	not provided	not provided	not provided		not provided	not provided	not provided	not provided

Last Updated: May 1, 2024

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