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NM_000218.3(KCNQ1):c.506C>T (p.Thr169Met) AND Long QT syndrome 1

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
May 14, 2020
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:
RCV001250549.9

Allele description [Variation Report for NM_000218.3(KCNQ1):c.506C>T (p.Thr169Met)]

NM_000218.3(KCNQ1):c.506C>T (p.Thr169Met)

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.506C>T (p.Thr169Met)
HGVS:
  • NC_000011.10:g.2570656C>T
  • NG_008935.1:g.130666C>T
  • NM_000218.3:c.506C>TMANE SELECT
  • NM_001406836.1:c.506C>T
  • NM_001406837.1:c.236C>T
  • NM_181798.2:c.125C>T
  • NP_000209.2:p.Thr169Met
  • NP_000209.2:p.Thr169Met
  • NP_001393765.1:p.Thr169Met
  • NP_001393766.1:p.Thr79Met
  • NP_861463.1:p.Thr42Met
  • NP_861463.1:p.Thr42Met
  • LRG_287t1:c.506C>T
  • LRG_287t2:c.125C>T
  • LRG_287:g.130666C>T
  • LRG_287p1:p.Thr169Met
  • LRG_287p2:p.Thr42Met
  • NC_000011.9:g.2591886C>T
  • NM_000218.2:c.506C>T
  • NM_181798.1:c.125C>T
  • NR_040711.2:n.399C>T
Protein change:
T169M
Links:
dbSNP: rs199472693
NCBI 1000 Genomes Browser:
rs199472693
Molecular consequence:
  • NM_000218.3:c.506C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001406836.1:c.506C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001406837.1:c.236C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181798.2:c.125C>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Long QT syndrome 1 (LQT1)
Identifiers:
MONDO: MONDO:0100316; MedGen: C4551647; Orphanet: 101016; Orphanet: 768; OMIM: 192500

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV001425371Johns Hopkins Genomics, Johns Hopkins University
criteria provided, single submitter

(ACMG Guidelines, 2015)
Uncertain significance
(May 14, 2020)
germlineclinical testing

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

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlineunknownnot providednot providednot providednot providednot providedclinical testing

Citations

PubMed

Mechanisms of KCNQ1 channel dysfunction in long QT syndrome involving voltage sensor domain mutations.

Huang H, Kuenze G, Smith JA, Taylor KC, Duran AM, Hadziselimovic A, Meiler J, Vanoye CG, George AL Jr, Sanders CR.

Sci Adv. 2018 Mar;4(3):eaar2631. doi: 10.1126/sciadv.aar2631.

PubMed [citation]
PMID:
29532034
PMCID:
PMC5842040

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]
PMID:
25741868
PMCID:
PMC4544753

Details of each submission

From Johns Hopkins Genomics, Johns Hopkins University, SCV001425371.1

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (2)
#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlineunknownnot providednot providednot providednot providednot providednot providednot provided

Last Updated: May 12, 2024