Paralogue Annotation for KCNQ1 residue 283

Residue details

Gene: KCNQ1
Reference Sequences: LRG: LRG_287, Ensembl variant: ENST00000155840 / ENSP00000155840
Amino Acid Position: 283
Reference Amino Acid: A - Alanine
Protein Domain: Transmembrane/Linker/Pore


Paralogue Variants mapped to KCNQ1 residue 283

ParalogueVariantAssociated DiseaseMapping QualityConsensusPubmed
KCNQ2A253TEpileptic encephalopathy, type 7High9 25959266

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 KCNQ1.



KCNQ1SVVFIHRQELITTLYIGFLGLIFSSYFVYL>A<EKDAVN-----ESGRVEFGSYADALWWGVV308
KCNQ2SVVYAHSKELVTAWYIGFLCLILASFLVYL>A<EKGE----------NDHFDTYADALWWGLI273
KCNQ3SAICAHSKELITAWYIGFLTLILSSFLVYL>V<EKDVPEVDAQGEEMKEEFETYADALWWGLI312
KCNQ4SVVYAHSKELITAWYIGFLVLIFASFLVYL>A<EKDA----------NSDFSSYADSLWWGTI279
KCNQ5SVVYAHSKELITAWYIGFLVLIFSSFLVYL>V<EKDA----------NKEFSTYADALWWGTI307
KCNA1QTLKASMRELGLLIFFLFIGVILFSSAVYF>A<EAEE---------AESHFSSIPDAFWWAVV368
KCNA10QTLKASMRELGLLIFFLFIGVILFSSAVYF>A<EVDE---------PESHFSSIPDGFWWAVV417
KCNA2QTLKASMRELGLLIFFLFIGVILFSSAVYF>A<EADE---------RESQFPSIPDAFWWAVV370
KCNA3QTLKASMRELGLLIFFLFIGVILFSSAVYF>A<EADD---------PTSGFSSIPDAFWWAVV440
KCNA4HTLRASMRELGLLIFFLFIGVILFSSAVYF>A<EADE---------PTTHFQSIPDAFWWAVV520
KCNA5KTLQASMRELGLLIFFLFIGVILFSSAVYF>A<EADN---------QGTHFSSIPDAFWWAVV476
KCNA6KTLQASMRELGLLIFFLFIGVILFSSAVYF>A<EADD---------DDSLFPSIPDAFWWAVV418
KCNA7QTLRASMRELGLLIFFLFIGVVLFSSAVYF>A<EVDR---------VDSHFTSIPESFWWAVV354
KCNB1FTLRRSYNELGLLILFLAMGIMIFSSLVFF>A<EKDE---------DDTKFKSIPASFWWATI373
KCNB2FTLRRSYNELGLLILFLAMGIMIFSSLVFF>A<EKDE---------DATKFTSIPASFWWATI377
KCNC1HTLRASTNEFLLLIIFLALGVLIFATMIYY>A<ERIGAQPNDPSASEHTHFKNIPIGFWWAVV396
KCNC2HTLRASTNEFLLLIIFLALGVLIFATMIYY>A<ERVGAQPNDPSASEHTQFKNIPIGFWWAVV433
KCNC3HTLRASTNEFLLLIIFLALGVLIFATMIYY>A<ERIGADPDDILGSNHTYFKNIPIGFWWAVV499
KCNC4HTLRASTNEFLLLIIFLALGVLIFATMIYY>A<ERIGARPSDPRGNDHTDFKNIPIGFWWAVV432
KCND1YTLKSCASELGFLLFSLTMAIIIFATVMFY>A<EKGT---------NKTNFTSIPAAFWYTIV368
KCND2YTLKSCASELGFLLFSLTMAIIIFATVMFY>A<EKGS---------SASKFTSIPAAFWYTIV366
KCND3YTLKSCASELGFLLFSLTMAIIIFATVMFY>A<EKGS---------SASKFTSIPASFWYTIV363
KCNF1YALKRSFKELGLLLMYLAVGIFVFSALGYT>M<EQSH---------PETLFKSIPQSFWWAII366
KCNG1LTARRCTREFGLLLLFLCVAIALFAPLLYV>I<ENEM-----A---DSPEFTSIPACYWWAVI420
KCNG2LTMRRCAREFGLLLLFLCVAMALFAPLVHL>A<EREL-----G---ARRDFSSVPASYWWAVI365
KCNG3LTLKRCYREMVMLLVFICVAMAIFSALSQL>L<EHGL-----DLETSNKDFTSIPAACWWVII369
KCNG4LTVRRCTREFGLLLLFLAVAITLFSPLVYV>A<EKES-----G---RVLEFTSIPASYWWAII414
KCNS1ATLKHSYREVGILLLYLAVGVSVFSGVAYT>A<EKEE----------DVGFNTIPACWWWGTV417
KCNS2ATLKYSYKEVGLLLLYLSVGISIFSVVAYT>I<EKEE----------NEGLATIPACWWWATV370
KCNS3ATLRHSYHEVGLLLLFLSVGISIFSVLIYS>V<EKDD---------HTSSLTSIPICWWWATI366
KCNV1MTITQCYEEVGLLLLFLSVGISIFSTVEYF>A<EQSI---------PDTTFTSVPCAWWWATT388
KCNV2FTLRQCYQQVGCLLLFIAMGIFTFSAAVYS>V<EHDV---------PSTNFTTIPHSWWWAAV453
cons                              > <                              

See full Alignment of Paralogues


Known Variants in KCNQ1

ProteinCDSDisease ClassificationDiseasedbSNP linksEffect Prediction
p.A283Gc.848C>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.A283Tc.847G>A Inherited ArrhythmiaLQTSSIFT:
Polyphen:
ReportsInherited ArrhythmiaLQTS Long QT syndrome-associated mutations in intrauterine fetal death. JAMA. 2013 309(14):1473-82. doi: 10.1001/jama.2013.3219. 23571586
p.A283Dc.848C>A Inherited ArrhythmiaLQTSSIFT:
Polyphen:
ReportsInherited ArrhythmiaLQTS Asymmetry of parental origin in long QT syndrome: preferential maternal transmission of KCNQ1 variants linked to channel dysfunction. Eur J Hum Genet. 2016 24(8):1160-6. doi: 10.1038/ejhg.2015.257. 26669661