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NM_000218.3(KCNQ1):c.1031C>T (p.Ala344Val) AND Congenital long QT syndrome

Germline classification:
not provided (1 submission)
Review status:
no classification provided
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:
RCV000057534.4

Allele description [Variation Report for NM_000218.3(KCNQ1):c.1031C>T (p.Ala344Val)]

NM_000218.3(KCNQ1):c.1031C>T (p.Ala344Val)

Gene:
KCNQ1:potassium voltage-gated channel subfamily Q member 1 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
11p15.5
Genomic location:
Preferred name:
NM_000218.3(KCNQ1):c.1031C>T (p.Ala344Val)
HGVS:
  • NC_000011.10:g.2583544C>T
  • NG_008935.1:g.143554C>T
  • NM_000218.3:c.1031C>TMANE SELECT
  • NM_001406836.1:c.1031C>T
  • NM_001406837.1:c.761C>T
  • NM_001406838.1:c.587C>T
  • NM_181798.2:c.650C>T
  • NP_000209.2:p.Ala344Val
  • NP_000209.2:p.Ala344Val
  • NP_001393765.1:p.Ala344Val
  • NP_001393766.1:p.Ala254Val
  • NP_001393767.1:p.Ala196Val
  • NP_861463.1:p.Ala217Val
  • NP_861463.1:p.Ala217Val
  • LRG_287t1:c.1031C>T
  • LRG_287t2:c.650C>T
  • LRG_287:g.143554C>T
  • LRG_287p1:p.Ala344Val
  • LRG_287p2:p.Ala217Val
  • NC_000011.9:g.2604774C>T
  • NM_000218.2:c.1031C>T
  • NM_181798.1:c.650C>T
  • NR_040711.2:n.924C>T
  • P51787:p.Ala344Val
Protein change:
A196V
Links:
UniProtKB: P51787#VAR_001541; dbSNP: rs199472763
NCBI 1000 Genomes Browser:
rs199472763
Molecular consequence:
  • NM_000218.3:c.1031C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001406836.1:c.1031C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001406837.1:c.761C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001406838.1:c.587C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181798.2:c.650C>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Congenital long QT syndrome (RWS)
Synonyms:
Familial long QT syndrome; Romano-Ward syndrome; Ventricular fibrillation with prolonged QT interval
Identifiers:
MONDO: MONDO:0019171; MedGen: C1141890; Orphanet: 768; OMIM: PS192500

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV000089053Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust
no classification provided
not providedgermlineliterature only

PubMed (7)
[See all records that cite these PMIDs]

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedliterature only

Citations

PubMed

KVLQT1 C-terminal missense mutation causes a forme fruste long-QT syndrome.

Donger C, Denjoy I, Berthet M, Neyroud N, Cruaud C, Bennaceur M, Chivoret G, Schwartz K, Coumel P, Guicheney P.

Circulation. 1997 Nov 4;96(9):2778-81.

PubMed [citation]
PMID:
9386136

Spectrum and frequency of cardiac channel defects in swimming-triggered arrhythmia syndromes.

Choi G, Kopplin LJ, Tester DJ, Will ML, Haglund CM, Ackerman MJ.

Circulation. 2004 Oct 12;110(15):2119-24. Epub 2004 Oct 4.

PubMed [citation]
PMID:
15466642
See all PubMed Citations (7)

Details of each submission

From Cardiovascular Biomedical Research Unit, Royal Brompton & Harefield NHS Foundation Trust, SCV000089053.3

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedliterature only PubMed (7)

Description

This variant has been reported as associated with Long QT syndrome in the following publications (PMID:9386136;PMID:15466642;PMID:15840476;PMID:19716085;PMID:9570196;PMID:17470695). This is a literature report, and does not necessarily reflect the clinical interpretation of the Imperial College / Royal Brompton Cardiovascular Genetics laboratory.

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

Last Updated: Sep 29, 2024