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NM_000218.3(KCNQ1):c.1553G>A (p.Arg518Gln) AND not provided

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Jul 10, 2024
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:
RCV000505803.15

Allele description [Variation Report for NM_000218.3(KCNQ1):c.1553G>A (p.Arg518Gln)]

NM_000218.3(KCNQ1):c.1553G>A (p.Arg518Gln)

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.1553G>A (p.Arg518Gln)
HGVS:
  • NC_000011.10:g.2768882G>A
  • NG_008935.1:g.328892G>A
  • NM_000218.3:c.1553G>AMANE SELECT
  • NM_001406836.1:c.1457G>A
  • NM_001406837.1:c.1283G>A
  • NM_001406838.1:c.1013G>A
  • NM_181798.2:c.1172G>A
  • NP_000209.2:p.Arg518Gln
  • NP_000209.2:p.Arg518Gln
  • NP_001393765.1:p.Arg486Gln
  • NP_001393766.1:p.Arg428Gln
  • NP_001393767.1:p.Arg338Gln
  • NP_861463.1:p.Arg391Gln
  • NP_861463.1:p.Arg391Gln
  • LRG_287t1:c.1553G>A
  • LRG_287t2:c.1172G>A
  • LRG_287:g.328892G>A
  • LRG_287p1:p.Arg518Gln
  • LRG_287p2:p.Arg391Gln
  • NC_000011.9:g.2790112G>A
  • NM_000218.2:c.1553G>A
  • NM_181798.1:c.1172G>A
  • NR_040711.2:n.1446G>A
  • P51787:p.Arg518Gln
Protein change:
R338Q
Links:
UniProtKB: P51787#VAR_075011; dbSNP: rs145974930
NCBI 1000 Genomes Browser:
rs145974930
Molecular consequence:
  • NM_000218.3:c.1553G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001406836.1:c.1457G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001406837.1:c.1283G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001406838.1:c.1013G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_181798.2:c.1172G>A - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Synonyms:
none provided
Identifiers:
MedGen: C3661900

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV000234500GeneDx
criteria provided, single submitter

(GeneDx Variant Classification Process June 2021)
Uncertain significance
(Jul 10, 2024)
germlineclinical testing

Citation Link

Summary from all submissions

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

Details of each submission

From GeneDx, SCV000234500.12

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testingnot provided

Description

Observed in individuals with Long QT syndrome and sudden infant death syndrome in the published literature (Kapplinger et al., 2009; Ghouse et al., 2015; Tester et al., 2018); Published functional studies demonstrate the R518Q variant retains function and have suggested this is a benign variant (Slaats et al., 2015); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 22581653, 25637381, 25854863, 26159999, 32048431, 29544605, 19716085, 31994352, Rida2023[review], 26546361, 26318259, 34333030, 31696929, 38014677)

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

Last Updated: Oct 13, 2024