Paralogue Annotation for SCN5A residue 1340

Residue details

Gene: SCN5A
Reference Sequences: LRG: LRG_289, Ensembl variant: ENST00000333535 / ENSP00000328968
Amino Acid Position: 1340
Reference Amino Acid: V - Valine
Protein Domain: TM Domain 3


Paralogue Variants mapped to SCN5A residue 1340

ParalogueVariantAssociated DiseaseMapping QualityConsensusPubmed
SCN1AV1353LGeneralized epilepsy with febrile seizures plusHigh9 11254444, 14672992
SCN9AV1316AErythermalgia, primaryHigh9 23383113, 23376079
SCN11AV1184ACold-aggravated peripheral painHigh9 26645915

To assess whether the paralogue annotation here confidently predicts that variation at this residue is pathogenic, it is important to check the reports in the Pubmed links above to ascertain that the mutations in these paralogues have been proved likely to be disease-causing. It is also important to check that the direction of effect of the variant in the paralogue is compatible with your observed phenotype in SCN5A.



SCN5APLRALSRFEGMRVVVNALVGAIPSIMNVLL>V<CLIFWLIFSIMGVNLFAGKFGRCINQTEGD1370
SCN1APLRALSRFEGMRVVVNALLGAIPSIMNVLL>V<CLIFWLIFSIMGVNLFAGKFYHCINTTTGD1383
SCN2APLRALSRFEGMRVVVNALLGAIPSIMNVLL>V<CLIFWLIFSIMGVNLFAGKFYHCINYTTGE1373
SCN3APLRALSRFEGMRVVVNALVGAIPSIMNVLL>V<CLIFWLIFSIMGVNLFAGKFYHCVNMTTGN1371
SCN4APLRALSRFEGMRVVVNALLGAIPSIMNVLL>V<CLIFWLIFSIMGVNLFAGKFYYCINTTTSE1196
SCN7APLRVLSQFERMKVVVRALIKTTLPTLNVFL>V<CLMIWLIFSIMGVDLFAGRFYECIDPTSGE1094
SCN8APLRALSRFEGMRVVVNALVGAIPSIMNVLL>V<CLIFWLIFSIMGVNLFAGKYHYCFNETSEI1363
SCN9APLRALSRFEGMRVVVNALIGAIPSIMNVLL>V<CLIFWLIFSIMGVNLFAGKFYECINTTDGS1346
SCN10APLRALSRFEGMRVVVDALVGAIPSIMNVLL>V<CLIFWLIFSIMGVNLFAGKFWRCINYTDGE1317
SCN11APLRALSQFEGMKVVVNALIGAIPAILNVLL>V<CLIFWLVFCILGVYFFSGKFGKCINGTDSV1214
CACNA1APLKTIKRLPKLKAVFDCVVNSLKNVFNILI>V<YMLFMFIFAVVAVQLFKGKFFHCTDESKEF1413
CACNA1BPLKTIKRLPKLKAVFDCVVNSLKNVLNILI>V<YMLFMFIFAVIAVQLFKGKFFYCTDESKEL1319
CACNA1CPLRAINRAKGLKHVVQCVFVAIRTIGNIVI>V<TTLLQFMFACIGVQLFKGKLYTCSDSSKQT1065
CACNA1DPLRAINRAKGLKHVVQCVFVAIRTIGNIMI>V<TTLLQFMFACIGVQLFKGKFYRCTDEAKSN1071
CACNA1EPLKTIKRLPKLKAVFDCVVTSLKNVFNILI>V<YKLFMFIFAVIAVQLFKGKFFYCTDSSKDT1325
CACNA1FPLRAINRAKGLKHVVQCVFVAIRTIGNIMI>V<TTLLQFMFACIGVQLFKGKFYTCTDEAKHT1036
CACNA1GPLRVISRAQGLKLVVETLMSSLKPIGNIVV>I<CCAFFIIFGILGVQLFKGKFFVCQGED---1445
CACNA1HPLRVISRAPGLKLVVETLISSLRPIGNIVL>I<CCAFFIIFGILGVQLFKGKFYYCEGPD---1463
CACNA1IPLRVISRAPGLKLVVETLISSLKPIGNIVL>I<CCAFFIIFGILGVQLFKGKFYHCLGVD---1339
CACNA1SPLRAINRAKGLKHVVQCMFVAISTIGNIVL>V<TTLLQFMFACIGVQLFKGKFFRCTDLSKMT964
cons                              > <                              

See full Alignment of Paralogues


Known Variants in SCN5A

ProteinCDSDisease ClassificationDiseasedbSNP linksEffect Prediction
p.V1340Ic.4018G>A Inherited ArrhythmiaBrSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited ArrhythmiaBrS A novel SCN5A mutation V1340I in Brugada syndrome augmenting arrhythmias during febrile illness. Heart Rhythm. 2009 6(9):1318-26. 19648062
Inherited ArrhythmiaBrS An international compendium of mutations in the SCN5A-encoded cardiac sodium channel in patients referred for Brugada syndrome genetic testing. Heart Rhythm. 2010 7(1):33-46. 20129283
Inherited ArrhythmiaBrS Paralogue annotation identifies novel pathogenic variants in patients with Brugada syndrome and catecholaminergic polymorphic ventricular tachycardia. J Med Genet. 2014 51(1):35-44. doi: 10.1136/jmedgenet-2013-101917. 24136861
p.Val1340Leuc.4018G>C UnknownSIFT:
Polyphen: