Paralogue Annotation for SCN5A residue 878

Residue details

Gene: SCN5A
Reference Sequences: LRG: LRG_289, Ensembl variant: ENST00000333535 / ENSP00000328968
Amino Acid Position: 878
Reference Amino Acid: R - Arginine
Protein Domain: TM Domain 2


Paralogue Variants mapped to SCN5A residue 878

ParalogueVariantAssociated DiseaseMapping QualityConsensusPubmed
SCN1AR931CMyoclonic epilepsy of infancyHigh8 12083760
SCN9AR896QCongenital indifference to painHigh8 20635406
SCN1AR931HEpilepsy ?High8 21248271, 21719429
SCN1AR931PDravet syndromeHigh8 24168886

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.



SCN5AGMQLFGKNYSEL-RDS----D-SG---LLP>R<WHMMDFFHAFLIIFRILCGE-WIETMWDCM907
SCN1AGMQLFGKSYKDC-VCK----I-AS-DCQLP>R<WHMNDFFHSFLIVFRVLCGE-WIETMWDCM960
SCN2AGMQLFGKSYKEC-VCK----I-SN-DCELP>R<WHMHDFFHSFLIVFRVLCGE-WIETMWDCM951
SCN3AGMQLFGKSYKEC-VCK----I-ND-DCTLP>R<WHMNDFFHSFLIVFRVLCGE-WIETMWDCM952
SCN4AGMQLFGKSYKEC-VCK----I-AL-DCNLP>R<WHMHDFFHSFLIVFRILCGE-WIETMWDCM770
SCN7AGMKLFGKNYEEF-VCH----I-DK-DCQLP>R<WHMHDFFHSFLNVFRILCGE-WVETLWDCM697
SCN8AGMQLFGKSYKEC-VCK----I-NQ-DCELP>R<WHMHDFFHSFLIVFRVLCGE-WIETMWDCM945
SCN9AGMQLFGKSYKEC-VCK----I-ND-DCTLP>R<WHMNDFFHSFLIVFRVLCGE-WIETMWDCM925
SCN10AGKQLLGENYRNN-RKN----I-SAPHEDWP>R<WHMHDFFHSFLIVFRILCGE-WIENMWACM858
SCN11AGMQLFGRSFNSQ-KSPKLCNPTGPTVSCLR>H<WHMGDFWHSFLVVFRILCGE-WIENMWECM777
CACNA1AGMQLFGGQFNFD-E------------G-TP>P<TNFDTFPAAIMTVFQILTGEDWNEVMYDGI678
CACNA1BGMQLFGGQFNFQ-D------------E-TP>T<TNFDTFPAAILTVFQILTGEDWNAVMYHGI674
CACNA1CGMQLFGGKFNFD-E------------MQTR>R<STFDNFPQSLLTVFQILTGEDWNSVMYDGI716
CACNA1DGMQLFGGKFNFD-E------------TQTK>R<STFDNFPQALLTVFQILTGEDWNAVMYDGI735
CACNA1EGMQLFGGRFNFN-D------------G-TP>S<ANFDTFPAAIMTVFQILTGEDWNEVMYNGI667
CACNA1FGMQLFGGKFNFD-Q------------THTK>R<STFDTFPQALLTVFQILTGEDWNVVMYDGI721
CACNA1GGMHLFGCKFASER---------DG-DTLPD>R<KNFDSLLWAIVTVFQILTQEDWNKVLYNGM933
CACNA1HGMHLFGCKFSLKTD--------TG-DTVPD>R<KNFDSLLWAIVTVFQILTQEDWNVVLYNGM984
CACNA1IGMHIFGCKFSLRTD--------TG-DTVPD>R<KNFDSLLWAIVTVFQILTQEDWNVVLYNGM831
CACNA1SGMQLFGGRYDFE-D------------TEVR>R<SNFDNFPQALISVFQVLTGEDWTSMMYNGI624
cons                              > <                              

See full Alignment of Paralogues


Known Variants in SCN5A

ProteinCDSDisease ClassificationDiseasedbSNP linksEffect Prediction
p.R878Cc.2632C>T Inherited ArrhythmiaBrSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited ArrhythmiaBrS Correlations between clinical and physiological consequences of the novel mutation R878C in a highly conserved pore residue in the cardiac Na+ channel. Acta Physiol (Oxf). 2008 194(4):311-23. 18616619
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 Multiple loss-of-function mechanisms contribute to SCN5A-related familial sick sinus syndrome. PLoS One. 2010 5(6):e10985. 20539757
Inherited ArrhythmiaBrS Gene symbol: SCN5A. Disease: Brugada syndrome. Hum Genet. 2008 123(5):542. 20960617
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.R878Hc.2633G>A Inherited ArrhythmiaBrSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited 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