NM_000551.4(VHL):c.340+641_340+642insCTCC AND multiple conditions

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Sep 26, 2022
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:: RCV002885000.4

Allele description [Variation Report for NM_000551.4(VHL):c.340+641_340+642insCTCC]

NM_000551.4(VHL):c.340+641_340+642insCTCC

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:

Insertion

Cytogenetic location:

3p25.3

Genomic location:

Preferred name:

NM_000551.4(VHL):c.340+641_340+642insCTCC

HGVS:

NC_000003.12:g.10142828_10142829insCTCC
NG_008212.3:g.6194_6195insCTCC
NG_046756.1:g.590_591insCTCC
NG_088598.1:g.234_235insCTCC
NM_000551.4:c.340+641_340+642insCTCCMANE SELECT
NM_001354723.2:c.406_407insCTCC
NM_198156.3:c.340+641_340+642insCTCC
NP_001341652.1:p.Gly136fs
LRG_322:g.6194_6195insCTCC
NC_000003.11:g.10184512_10184513insCTCC
NR_176335.1:n.476_477insCTCC

Protein change:

G136fs

Molecular consequence:

NM_001354723.2:c.406_407insCTCC - frameshift variant - [Sequence Ontology: SO:0001589]
NM_000551.4:c.340+641_340+642insCTCC - intron variant - [Sequence Ontology: SO:0001627]
NM_198156.3:c.340+641_340+642insCTCC - intron variant - [Sequence Ontology: SO:0001627]

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
SCV003237785	Labcorp Genetics (formerly Invitae), Labcorp	criteria provided, single submitter (Invitae Variant Classification Sherloc (09022015))	Uncertain significance (Sep 26, 2022)	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

SCV003237785

Labcorp Genetics (formerly Invitae), Labcorp

criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))

Uncertain significance
(Sep 26, 2022)

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, SCV003237785.2

#	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. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant is not likely to affect RNA splicing. This variant has not been reported in the literature in individuals affected with VHL-related conditions. This variant is not present in population databases (gnomAD no frequency). 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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