Paralogue Annotation for SCN5A residue 104

Residue details

Gene: SCN5A
Reference Sequences: LRG: LRG_289, Ensembl variant: ENST00000333535 / ENSP00000328968
Amino Acid Position: 104
Reference Amino Acid: R - Arginine
Protein Domain: N-terminus


Paralogue Variants mapped to SCN5A residue 104

ParalogueVariantAssociated DiseaseMapping QualityConsensusPubmed
SCN1AR101WMyoclonic epilepsy of infancyHigh7 17347258, 27236449
SCN1AR101QMyoclonic epilepsy of infancyHigh7 14738421, 23195492, 23808377, 23158734, 24328833, 25885068
SCN4AR104HMyopathy, congenitalHigh7 26700687

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.



SCN5AIGEPLEDLDPFYSTQK-TFI-VLNKGKTIF>R<FSATNALYVLSPFHPIRRAAVKILVHSLFN134
SCN1AVSEPLEDLDPYYINKK-TFI-VLNKGKAIF>R<FSATSALYILTPFNPLRKIAIKILVHSLFS131
SCN2AVSVPLEDLDPYYINKK-TFI-VLNKGKAIS>R<FSATPALYILTPFNPIRKLAIKILVHSLFN132
SCN3AVSEPLEDLDPYYINKK-TFI-VMNKGKAIF>R<FSATSALYILTPLNPVRKIAIKILVHSLFS131
SCN4AIGIPLEDLDPYYSNKK-TFI-VLNKGKAIF>R<FSATPALYLLSPFSVVRRGAIKVLIHALFS134
SCN7AVSEPLEDVDPYYYKKKNTFI-VLNKNRTIF>R<FNAASILCTLSPFNCIRRTTIKVLVHPFFQ121
SCN8AVAVPLEDFDPYYLTQK-TFV-VLNRGKTLF>R<FSATPALYILSPFNLIRRIAIKILIHSVFS135
SCN9AVSEPLEDLDPYYADKK-TFI-VLNKGKTIF>R<FNATPALYMLSPFSPLRRISIKILVHSLFS129
SCN10AIGEPLEDLDPFYSTHR-TFM-VLNKGRTIS>R<FSATRALWLFSPFNLIRRTAIKVSVHSWFS133
SCN11AIGKPLEDLDPFYRNHK-TFM-VLNRKRTIY>R<FSAKHALFIFGPFNSIRSLAIRVSVHSLFS132
CACNA1A---QRMYKQSMAQRARTMAL-YNPIPVRQN>C<LTVNRSLFLFSEDNVVRKYAKKITEWPPFE101
CACNA1B---RVLYKQSIAQRARTMAL-YNPIPVKQN>C<FTVNRSLFVFSEDNVVRKYAKRITEWPPFE98
CACNA1CGNATISTVSST-QRKRQQYG-KPKKQGSTT>A<TRPPRALLCLTLKNPIRRACISIVEWKPFE127
CACNA1DSTSAPPPVGSLSQRKRQQYA-KSKKQGNSS>N<SRPARALFCLSLNNPIRRACISIVEWKPFD129
CACNA1E---AAAYKQTKAQRARTMAL-YNPIPVRQN>C<FTVNRSLFIFGEDNIVRKYAKKLIDWPPFE92
CACNA1FEGESSGASGLGTPKRRNQHS-KHKTVAVAS>A<QRSPRALFCLTLANPLRRSCISIVEWKPFD95
CACNA1G--PGSA-------EKDPG-SADSEAEGLPY>P<ALAPVVFFYLSQDSRPRSWCLRTVCNPWFE84
CACNA1H--P-AA-------ERGAELG-ADEEQRVPY>P<ALAATVFFCLGQTTRPRSWCLRLVCNPWFE103
CACNA1I--SPPG-------LEEPL-D-G-ADPHVPH>P<DLAPIAFFCLRQTTSPRNWCIKMVCNPWFE82
CACNA1S---------SSPQDEGLRKK-QPKKPVPEI>L<PRPPRALFCLTLENPLRKACISIVEWKPFE54
cons                              > <                              

See full Alignment of Paralogues


Known Variants in SCN5A

ProteinCDSDisease ClassificationDiseasedbSNP linksEffect Prediction
p.R104Gc.310C>G Inherited ArrhythmiaLQTSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited ArrhythmiaLQTS Spectrum and prevalence of mutations from the first 2,500 consecutive unrelated patients referred for the FAMILION long QT syndrome genetic test. Heart Rhythm. 2009 6(9):1297-303. 19716085
p.R104Qc.311G>A Inherited ArrhythmiaBrSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited ArrhythmiaBrS Genetic analysis of Brugada syndrome in Israel: two novel mutations and possible genetic heterogeneity. Genet Test. 2001 5(4):331-4. 11960580
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 Characterization of N-terminally mutated cardiac Na(+) channels associated with long QT syndrome 3 and Brugada syndrome. Front Physiol. 2013 4:153. doi: 10.3389/fphys.2013.00153. eCollection 23805106
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.R104Wc.310C>T 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 Dominant-negative effect of SCN5A N-terminal mutations through the interaction of Nav1.5 α-subunits. Cardiovasc Res. 2012 96(1):53-63. 22739120
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