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NC_000011.9:g.(?_2233574)_(2499178_?)dup AND Long QT syndrome

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Feb 11, 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:
RCV004580131.1

Allele description

NC_000011.9:g.(?_2233574)_(2499178_?)dup

Genes:
  • CD81:CD81 molecule [Gene - OMIM - HGNC]
  • ASCL2:achaete-scute family bHLH transcription factor 2 [Gene - OMIM - HGNC]
  • C11orf21:chromosome 11 open reading frame 21 [Gene - OMIM - HGNC]
  • KCNQ1:potassium voltage-gated channel subfamily Q member 1 [Gene - OMIM - HGNC]
  • TSPAN32:tetraspanin 32 [Gene - OMIM - HGNC]
  • TRPM5:transient receptor potential cation channel subfamily M member 5 [Gene - OMIM - HGNC]
  • TSSC4:tumor suppressing subtransferable candidate 4 [Gene - OMIM - HGNC]
Variant type:
Duplication
Cytogenetic location:
11p15.5
Genomic location:
Chr11: 2233574 - 2499178 (on Assembly GRCh37)
Preferred name:
NC_000011.9:g.(?_2233574)_(2499178_?)dup
HGVS:
NC_000011.9:g.(?_2233574)_(2499178_?)dup

Condition(s)

Name:
Long QT syndrome (LQTS)
Identifiers:
MONDO: MONDO:0002442; MeSH: D008133; MedGen: C0023976

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Assertion and evidence details

Help
Submission AccessionSubmitterReview Status
(Assertion method)		Clinical Significance
(Last evaluated)		OriginMethodCitations
SCV005062640Invitae
criteria provided, single submitter

(Invitae Variant Classification Sherloc (09022015))		Uncertain significance
(Feb 11, 2023) 		unknownclinical testing

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

Help

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedunknownunknownnot providednot providednot providednot providednot providedclinical 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, SCV005062640.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (1)

Description

This variant results in a copy number gain of the genomic region encompassing exon(s) 1 of the KCNQ1 gene. This region includes the initiator codon of the gene. This copy number gain extends beyond the assayed region for this gene and therefore may encompass additional genes. As the precise location of this event is unknown, it may be in tandem or it may be located elsewhere in the genome. This variant has not been reported in the literature in individuals affected with KCNQ1-related conditions. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1unknownunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: Jul 7, 2024