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NM_000335.5(SCN5A):c.3389C>T (p.Thr1130Ile) AND Cardiovascular phenotype

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Jun 2, 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:
RCV002453376.10

Allele description [Variation Report for NM_000335.5(SCN5A):c.3389C>T (p.Thr1130Ile)]

NM_000335.5(SCN5A):c.3389C>T (p.Thr1130Ile)

Gene:
SCN5A:sodium voltage-gated channel alpha subunit 5 [Gene - OMIM - HGNC]
Variant type:
single nucleotide variant
Cytogenetic location:
3p22.2
Genomic location:
Preferred name:
NM_000335.5(SCN5A):c.3389C>T (p.Thr1130Ile)
Other names:
p.T1131I:ACC>ATC
HGVS:
  • NC_000003.12:g.38576780G>A
  • NG_008934.1:g.77893C>T
  • NM_000335.5:c.3389C>TMANE SELECT
  • NM_001099404.2:c.3392C>T
  • NM_001099405.2:c.3392C>T
  • NM_001160160.2:c.3389C>T
  • NM_001160161.2:c.3230C>T
  • NM_001354701.2:c.3389C>T
  • NM_198056.3:c.3392C>T
  • NP_000326.2:p.Thr1130Ile
  • NP_001092874.1:p.Thr1131Ile
  • NP_001092875.1:p.Thr1131Ile
  • NP_001153632.1:p.Thr1130Ile
  • NP_001153633.1:p.Thr1077Ile
  • NP_001341630.1:p.Thr1130Ile
  • NP_932173.1:p.Thr1131Ile
  • NP_932173.1:p.Thr1131Ile
  • LRG_289t1:c.3392C>T
  • LRG_289:g.77893C>T
  • LRG_289p1:p.Thr1131Ile
  • NC_000003.11:g.38618271G>A
  • NM_001160160.1:c.3389C>T
  • NM_198056.2:c.3392C>T
  • Q14524:p.Thr1131Ile
Protein change:
T1077I
Links:
UniProtKB: Q14524#VAR_055186; dbSNP: rs199473197
NCBI 1000 Genomes Browser:
rs199473197
Molecular consequence:
  • NM_000335.5:c.3389C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001099404.2:c.3392C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001099405.2:c.3392C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001160160.2:c.3389C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001160161.2:c.3230C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001354701.2:c.3389C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_198056.3:c.3392C>T - missense variant - [Sequence Ontology: SO:0001583]

Condition(s)

Name:
Cardiovascular phenotype
Identifiers:
MedGen: CN230736

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Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV002618318Ambry Genetics
criteria provided, single submitter

(Ambry Variant Classification Scheme 2023)
Uncertain significance
(Jun 2, 2023)
germlineclinical testing

PubMed (5)
[See all records that cite these PMIDs]

Citation Link

Summary from all submissions

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

Citations

PubMed

Cardiac sodium channel (SCN5A) variants associated with atrial fibrillation.

Darbar D, Kannankeril PJ, Donahue BS, Kucera G, Stubblefield T, Haines JL, George AL Jr, Roden DM.

Circulation. 2008 Apr 15;117(15):1927-35. doi: 10.1161/CIRCULATIONAHA.107.757955. Epub 2008 Mar 31.

PubMed [citation]
PMID:
18378609
PMCID:
PMC2365761

Voltage-gated sodium channels: mutations, channelopathies and targets.

Andavan GS, Lemmens-Gruber R.

Curr Med Chem. 2011;18(3):377-97. Review.

PubMed [citation]
PMID:
21143119
See all PubMed Citations (5)

Details of each submission

From Ambry Genetics, SCV002618318.3

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (5)

Description

The p.T1131I variant (also known as c.3392C>T), located in coding exon 18 of the SCN5A gene, results from a C to T substitution at nucleotide position 3392. The threonine at codon 1131 is replaced by isoleucine, an amino acid with similar properties, and is located in the DII/DIII interdomain linker region of the protein. This variant has been detected in an individual with atrial fibrillation, bradycardia, and congestive heart failure, and has been detected in a sudden infant death case (Darbar D et al. Circulation, 2008 Apr;117:1927-35; Wang D et al. Forensic Sci. Int., 2014 Apr;237:90-9). This variant has also been detected in a control cohort; however, details were limited (Kapplinger JD et al. Circ Cardiovasc Genet. 2015 Aug;8(4):582-95). This amino acid position is not well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear.

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

Last Updated: Oct 13, 2024