Paralogue Annotation for KCNQ1 residue 178

Residue details

Gene: KCNQ1
Reference Sequences: LRG: LRG_287, Ensembl variant: ENST00000155840 / ENSP00000155840
Amino Acid Position: 178
Reference Amino Acid: A - Alanine
Protein Domain: Transmembrane/Linker/Pore


Paralogue Variants mapped to KCNQ1 residue 178

No paralogue variants have been mapped to residue 178 for KCNQ1.



KCNQ1ALATGT-LF-WMEIVLVVFFGTEYVVRLWS>A<GCRSKYVGLWGRLRFARKPISIIDLIVVVA208
KCNQ2KSSEGA-LY-ILEIVTIVVFGVEYFVRIWA>A<GCCCRYRGWRGRLKFARKPFCVIDIMVLIA178
KCNQ3TVSGDW-LL-LLETFAIFIFGAEFALRIWA>A<GCCCRYKGWRGRLKFARKPLCMLDIFVLIA208
KCNQ4ELANEC-LL-ILEFVMIVVFGLEYIVRVWS>A<GCCCRYRGWQGRFRFARKPFCVIDFIVFVA184
KCNQ5KLASSC-LL-ILEFVMIVVFGLEFIIRIWS>A<GCCCRYRGWQGRLRFARKPFCVIDTIVLIA212
KCNA1NIFTDP-FF-IVETLCIIWFSFELVVR--->-<-----FFACPSKTDFFKNIMNFIDIVAIIP264
KCNA10TMFTDP-FF-MVESTCIVWFTFELVLR--->-<-----FVVCPSKTDFFRNIMNIIDIISIIP314
KCNA2TSFTDP-FF-IVETLCIIWFSFEFLVR--->-<-----FFACPSKAGFFTNIMNIIDIVAIIP265
KCNA3SSFSDP-FF-VVETLCIIWFSFELLVR--->-<-----FFACPSKATFSRNIMNLIDIVAIIP338
KCNA4TIFNDP-FF-IVETVCIVWFSFEFVVR--->-<-----CFACPSQALFFKNIMNIIDIVSILP414
KCNA5RTLADP-FF-IVETTCVIWFTFELLVR--->-<-----FFACPSKAGFSRNIMNIIDVVAIFP367
KCNA6SFFTDP-FF-LVETLCIVWFTFELLVR--->-<-----FSACPSKPAFFRNIMNIIDLVAIFP306
KCNA7LPFNDP-FF-VVETLCICWFSFELLVR--->-<-----LLVCPSKAIFFKNVMNLIDFVAILP252
KCNB1-STDNPQLA-HVEAVCIAWFTMEYLLR--->-<-----FLSSPKKWKFFKGPLNAIDLLAILP272
KCNB2-LNDNRQLA-HVEAVCIAWFTMEYLLR--->-<-----FLSSPNKWKFFKGPLNVIDLLAILP276
KCNC1EAETEA-FLTYIEGVCVVWFTFEFLMR--->-<-----VIFCPNKVEFIKNSLNIIDFVAILP288
KCNC2EIETDP-ALTYVEGVCVVWFTFEFLVR--->-<-----IVFSPNKLEFIKNLLNIIDFVAILP325
KCNC3EVETEP-FLTYVEGVCVVWFTFEFLMR--->-<-----ITFCPDKVEFLKSSLNIIDCVAILP391
KCNC4EVETEP-ILTYIEGVCVLWFTLEFLVR--->-<-----IVCCPDTLDFVKNLLNIIDFVAILP324
KCND1ERFPQA-FF-CMDTACVLIFTGEYLLR--->-<-----LFAAPSRCRFLRSVMSLIDVVAILP274
KCND2ERYAVA-FF-CLDTACVMIFTVEYLLR--->-<-----LAAAPSRYRFVRSVMSIIDVVAILP272
KCND3ERYSVA-FF-CLDTACVMIFTVEYLLR--->-<-----LFAAPSRYRFIRSVMSIIDVVAIMP269
KCNF1-RVEHPTLE-NVETACIGWFTLEYLLR--->-<-----LFSSPNKLHFALSFMNIVDVLAILP265
KCNG1SQMCHN-VF-IVESVCVGWFSLEFLLR--->-<-----LIQAPSKFAFLRSPLTLIDLVAILP311
KCNG2SPKCRS-LF-VLETVCVAWFSFEFLLR--->-<-----SLQAESKCAFLRAPLNIIDILALLP261
KCNG3GPGREP-SG-IIEAICIGWFTAECIVR--->-<-----FIVSKNKCEFVKRPLNIIDLLAITP264
KCNG4SRKCYY-IF-IVETICVAWFSLEFCLR--->-<-----FVQAQDKCQFFQGPLNIIDILAISP305
KCNS1GVRDDPVLR-RLEYFCIAWFSFEVSSR--->-<-----LLLAPSTRNFFCHPLNLIDIVSVLP315
KCNS2-PGEDPRFE-IVEHFGIAWFTFELVAR--->-<-----FAVAPDFLKFFKNALNLIDLMSIVP270
KCNS3--VDDPVLE-GVEIACIAWFTGELAVR--->-<-----LAAAPCQKKFWKNPLNIIDFVSIIP265
KCNV1-WLDLQLLE-ILEYVCISWFTGEFVLR--->-<-----FLCVRDRCRFLRKVPNIIDLLAILP285
KCNV2GPDLRPILE-HVEMLCMGFFTLEYLLR--->-<-----LASTPDLRRFARSALNLVDLVAILP345
cons                              > <                              

See full Alignment of Paralogues


Known Variants in KCNQ1

ProteinCDSDisease ClassificationDiseasedbSNP linksEffect Prediction
p.A178Pc.532G>C Inherited ArrhythmiaLQTSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited ArrhythmiaLQTS Positional cloning of a novel potassium channel gene: KVLQT1 mutations cause cardiac arrhythmias. Nat Genet. 1996 12(1):17-23. 8528244
Inherited ArrhythmiaLQTS Dominant-negative KvLQT1 mutations underlie the LQT1 form of long QT syndrome. Circulation. 1997 96(6):1733-6. 9323054
Inherited ArrhythmiaLQTS Location of mutation in the KCNQ1 and phenotypic presentation of long QT syndrome. J Cardiovasc Electrophysiol. 2003 14(11):1149-53. 14678125
Inherited ArrhythmiaLQTS Clinical aspects of type-1 long-QT syndrome by location, coding type, and biophysical function of mutations involving the KCNQ1 gene. Circulation. 2007 115(19):2481-9. 17470695
p.A178Tc.532G>A Inherited ArrhythmiaLQTSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited ArrhythmiaLQTS Four novel KVLQT1 and four novel HERG mutations in familial long-QT syndrome. Circulation. 1997 95(3):565-7. 9024139
Inherited 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
Inherited ArrhythmiaLQTS High prevalence of genetic variants previously associated with LQT syndrome in new exome data. Eur J Hum Genet. 2012 20(8):905-8. doi: 10.1038/ejhg.2012.23. 22378279
Inherited ArrhythmiaLQTS Cellular mechanisms underlying the increased disease severity seen for patients with long QT syndrome caused by compound mutations in KCNQ1. Biochem J. 2014 462(1):133-42. doi: 10.1042/BJ20140425. 24912595
Unknown Actionable exomic incidental findings in 6503 participants: challenges of variant classification. Genome Res. 2015 25(3):305-15. doi: 10.1101/gr.183483.114. 25637381