U.S. flag

An official website of the United States government

NM_000335.5(SCN5A):c.3908C>T (p.Thr1303Met) AND not specified

Germline classification:
Uncertain significance (1 submission)
Last evaluated:
Apr 26, 2018
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:
RCV000824759.14

Allele description [Variation Report for NM_000335.5(SCN5A):c.3908C>T (p.Thr1303Met)]

NM_000335.5(SCN5A):c.3908C>T (p.Thr1303Met)

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.3908C>T (p.Thr1303Met)
Other names:
p.T1304M:ACG>ATG
HGVS:
  • NC_000003.12:g.38562467G>A
  • NG_008934.1:g.92206C>T
  • NM_000335.5:c.3908C>TMANE SELECT
  • NM_001099404.2:c.3911C>T
  • NM_001099405.2:c.3911C>T
  • NM_001160160.2:c.3908C>T
  • NM_001160161.2:c.3749C>T
  • NM_001354701.2:c.3908C>T
  • NM_198056.3:c.3911C>T
  • NP_000326.2:p.Thr1303Met
  • NP_000326.2:p.Thr1303Met
  • NP_001092874.1:p.Thr1304Met
  • NP_001092874.1:p.Thr1304Met
  • NP_001092875.1:p.Thr1304Met
  • NP_001153632.1:p.Thr1303Met
  • NP_001153633.1:p.Thr1250Met
  • NP_001341630.1:p.Thr1303Met
  • NP_932173.1:p.Thr1304Met
  • NP_932173.1:p.Thr1304Met
  • LRG_289t1:c.3911C>T
  • LRG_289t2:c.3908C>T
  • LRG_289t3:c.3911C>T
  • LRG_289:g.92206C>T
  • LRG_289p1:p.Thr1304Met
  • LRG_289p2:p.Thr1303Met
  • LRG_289p3:p.Thr1304Met
  • NC_000003.11:g.38603958G>A
  • NM_000335.4:c.3908C>T
  • NM_001099404.1:c.3911C>T
  • NM_198056.2:c.3911C>T
Protein change:
T1250M
Links:
dbSNP: rs199473603
NCBI 1000 Genomes Browser:
rs199473603
Molecular consequence:
  • NM_000335.5:c.3908C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001099404.2:c.3911C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001099405.2:c.3911C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001160160.2:c.3908C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001160161.2:c.3749C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_001354701.2:c.3908C>T - missense variant - [Sequence Ontology: SO:0001583]
  • NM_198056.3:c.3911C>T - missense variant - [Sequence Ontology: SO:0001583]
Observations:
7

Condition(s)

Synonyms:
AllHighlyPenetrant
Identifiers:
MedGen: CN169374

Recent activity

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

See more...

Assertion and evidence details

Submission AccessionSubmitterReview Status
(Assertion method)
Clinical Significance
(Last evaluated)
OriginMethodCitations
SCV000710929Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
criteria provided, single submitter

(LMM Criteria)
Uncertain significance
(Apr 26, 2018)
germlineclinical testing

PubMed (14)
[See all records that cite these PMIDs]

Summary from all submissions

EthnicityOriginAffectedIndividualsFamiliesChromosomes testedNumber TestedFamily historyMethod
not providedgermlinenot provided87not providednot providednot providedclinical testing

Citations

PubMed

Sodium channel abnormalities are infrequent in patients with long QT syndrome: identification of two novel SCN5A mutations.

Wattanasirichaigoon D, Vesely MR, Duggal P, Levine JC, Blume ED, Wolff GS, Edwards SB, Beggs AH.

Am J Med Genet. 1999 Oct 29;86(5):470-6.

PubMed [citation]
PMID:
10508990

A pediatric case of Brugada syndrome diagnosed by fever-provoked ventricular tachycardia.

Kim G, Kyung YC, Kang IS, Song J, Huh J, On YK.

Korean J Pediatr. 2014 Aug;57(8):374-8. doi: 10.3345/kjp.2014.57.8.374. Epub 2014 Aug 25.

PubMed [citation]
PMID:
25210526
PMCID:
PMC4155183
See all PubMed Citations (14)

Details of each submission

From Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine, SCV000710929.2

#EthnicityIndividualsChromosomes TestedFamily HistoryMethodCitations
1not provided8not providednot providedclinical testing PubMed (14)

Description

The p.Thr1304Met variant in SCN5A has been reported in 3 individuals with long Q T syndrome, 1 infant with sudden infant death syndrome, 1 individual with Brugad a syndrome, 1 individual with early-onset atrial fibrillation (Wattanasirichaigo on 1999, Priori 2000, Splawski 2000, Arnestad 2007, Olesen 2012, Kim 2014). This variant segregated with LQTS in 2 affected relatives from 1 family and with Br ugada syndrome in 1 affected relative from 1 family. However, other clinical lab oratories have observed this variant in individuals who carried other disease-ca using variants (GeneDx, Emory, Invitae; personal communication) and this variant has been reported in multiple healthy individuals (Weeke 2015, Kapplinger 2015) . Additionally, it is unclear if the same variant would be causative for such a diverse set of phenotypes, suggesting that it may not have a functional effect. This variant has also been identified in 0.03% (35/126116) of European chromosom es by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP rs199473603). Additionally, in vitro functional studies have shown confli cting results (Want 2007, Makita 2008, Beyder 2014). In summary, due to the pres ence of conflicting data, the clinical significance of the p.Thr1304Met variant is uncertain. ACMG/AMP Criteria applied: PP1; BP5.

#SampleMethodObservation
OriginAffectedNumber testedTissuePurposeMethodIndividualsAllele frequencyFamiliesCo-occurrences
1germlinenot providednot providednot providednot provided8not provided7not provided

Last Updated: Jun 2, 2024