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NM_000335.5(SCN5A):c.5605G>A (p.Ala1869Thr) AND Cardiovascular phenotype

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Mar 30, 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:
RCV002345638.10

Allele description [Variation Report for NM_000335.5(SCN5A):c.5605G>A (p.Ala1869Thr)]

NM_000335.5(SCN5A):c.5605G>A (p.Ala1869Thr)

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.5605G>A (p.Ala1869Thr)
HGVS:
  • NC_000003.12:g.38550764C>T
  • NG_008934.1:g.103909G>A
  • NM_000335.5:c.5605G>AMANE SELECT
  • NM_001099404.1:c.5608G>A
  • NM_001099404.2:c.5608G>A
  • NM_001099405.2:c.5554G>A
  • NM_001160160.2:c.5509G>A
  • NM_001160161.2:c.5446G>A
  • NM_001354701.2:c.5551G>A
  • NM_198056.3:c.5608G>A
  • NP_000326.2:p.Ala1869Thr
  • NP_001092874.1:p.Ala1870Thr
  • NP_001092875.1:p.Ala1852Thr
  • NP_001153632.1:p.Ala1837Thr
  • NP_001153633.1:p.Ala1816Thr
  • NP_001341630.1:p.Ala1851Thr
  • NP_932173.1:p.Ala1870Thr
  • NP_932173.1:p.Ala1870Thr
  • LRG_289t1:c.5608G>A
  • LRG_289t3:c.5608G>A
  • LRG_289:g.103909G>A
  • LRG_289p1:p.Ala1870Thr
  • NC_000003.11:g.38592255C>T
  • NM_198056.2:c.5608G>A
  • NM_198056.3:c.5608G>A
Protein change:
A1816T
Links:
dbSNP: rs794728939
NCBI 1000 Genomes Browser:
rs794728939
Molecular consequence:
  • NM_000335.5:c.5605G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001099404.2:c.5608G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001099405.2:c.5554G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001160160.2:c.5509G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001160161.2:c.5446G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001354701.2:c.5551G>A - missense variant - [Sequence Ontology: SO:0001583]
  • NM_198056.3:c.5608G>A - 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
SCV002651432Ambry Genetics
criteria provided, single submitter

(Ambry Variant Classification Scheme 2023)
Uncertain significance
(Mar 30, 2023)
germlineclinical testing

PubMed (2)
[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

Results of genetic testing in 855 consecutive unrelated patients referred for long QT syndrome in a clinical laboratory.

Lieve KV, Williams L, Daly A, Richard G, Bale S, Macaya D, Chung WK.

Genet Test Mol Biomarkers. 2013 Jul;17(7):553-61. doi: 10.1089/gtmb.2012.0118. Epub 2013 Apr 30.

PubMed [citation]
PMID:
23631430

Critical assessment of secondary findings in genes linked to primary arrhythmia syndromes.

Diebold I, Schön U, Scharf F, Benet-Pagès A, Laner A, Holinski-Feder E, Abicht A.

Hum Mutat. 2020 May;41(5):1025-1032. doi: 10.1002/humu.23996. Epub 2020 Feb 18.

PubMed [citation]
PMID:
32048431
PMCID:
PMC7187207

Details of each submission

From Ambry Genetics, SCV002651432.3

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not providednot providednot providednot providedclinical testing PubMed (2)

Description

The p.A1870T variant (also known as c.5608G>A), located in coding exon 27 of the SCN5A gene, results from a G to A substitution at nucleotide position 5608. The alanine at codon 1870 is replaced by threonine, an amino acid with similar properties. This variant has been detected in a long QT syndrome genetic testing cohort, and in a cohort not selected for the presence of cardiovascular disease; however, clinical details were limited (Lieve KV et al. Genet Test Mol Biomarkers, 2013 Jul;17:553-61; Diebold I et al. Hum Mutat. 2020 May;41(5):1025-1032). This amino acid position is highly 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: Nov 3, 2024