NM_000551.4(VHL):c.340+650A>T AND multiple conditions

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Jun 5, 2021
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:: RCV001961297.7

Allele description [Variation Report for NM_000551.4(VHL):c.340+650A>T]

NM_000551.4(VHL):c.340+650A>T

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.340+650A>T

HGVS:

NC_000003.12:g.10142837A>T
NG_008212.3:g.6203A>T
NG_046756.1:g.599A>T
NM_000551.4:c.340+650A>TMANE SELECT
NM_001354723.2:c.415A>T
NM_198156.3:c.340+650A>T
NP_001341652.1:p.Thr139Ser
LRG_322:g.6203A>T
NC_000003.11:g.10184521A>T

Protein change:

T139S

Links:

dbSNP: rs2125125925

NCBI 1000 Genomes Browser:

rs2125125925

Molecular consequence:

NM_000551.4:c.340+650A>T - intron variant - [Sequence Ontology: SO:0001627]
NM_198156.3:c.340+650A>T - intron variant - [Sequence Ontology: SO:0001627]
NM_001354723.2:c.415A>T - 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
SCV002252286	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Jun 5, 2021)	germline	clinical testing	PubMed (2) [See all records that cite these PMIDs] 29891534, 28492532

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV002252286

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Jun 5, 2021)

germline

clinical testing

PubMed (2)
[See all records that cite these PMIDs]

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

Identification of a new VHL exon and complex splicing alterations in familial erythrocytosis or von Hippel-Lindau disease.

Lenglet M, Robriquet F, Schwarz K, Camps C, Couturier A, Hoogewijs D, Buffet A, Knight SJL, Gad S, Couvé S, Chesnel F, Pacault M, Lindenbaum P, Job S, Dumont S, Besnard T, Cornec M, Dreau H, Pentony M, Kvikstad E, Deveaux S, Burnichon N, et al.

Blood. 2018 Aug 2;132(5):469-483. doi: 10.1182/blood-2018-03-838235. Epub 2018 Jun 11.

PubMed [citation]

PMID:: 29891534

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 Labcorp Genetics (formerly Invitae), Labcorp, SCV002252286.3

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	clinical testing	PubMed (2)

Description

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. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. This variant has not been reported in the literature in individuals with VHL-related conditions. 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 sequence change falls in intron 1 of the VHL gene. It is not expected to change the encoded amino acid sequence of the VHL protein. However, this sequence change falls within a cryptic exon in the VHL gene, known as exon E1‚Äô, which is naturally expressed at low levels in several human tissues (PMID: 29891534).

#	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: Sep 29, 2024

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