Paralogue Annotation for KCNQ1 residue 204

Residue details

Gene: KCNQ1
Reference Sequences: LRG: LRG_287, Ensembl variant: ENST00000155840 / ENSP00000155840
Amino Acid Position: 204
Reference Amino Acid: I - Isoleucine
Protein Domain: Transmembrane/Linker/Pore


Paralogue Variants mapped to KCNQ1 residue 204

No paralogue variants have been mapped to residue 204 for KCNQ1.



KCNQ1RLWSAGCRSKYVGLWGRLRFARKPISIIDL>I<VVVASMVVLCVG----------------SK218
KCNQ2RIWAAGCCCRYRGWRGRLKFARKPFCVIDI>M<VLIASIAVLAAG----------------SQ188
KCNQ3RIWAAGCCCRYKGWRGRLKFARKPLCMLDI>F<VLIASVPVVAVG----------------NQ218
KCNQ4RVWSAGCCCRYRGWQGRFRFARKPFCVIDF>I<VFVASVAVIAAG----------------TQ194
KCNQ5RIWSAGCCCRYRGWQGRLRFARKPFCVIDT>I<VLIASIAVVSAK----------------TQ222
KCNA1R---------FFACPSKTDFFKNIMNFIDI>V<AIIPYFITLGTEIAEQEG-------N-QKG282
KCNA10R---------FVVCPSKTDFFRNIMNIIDI>I<SIIPYFATLITELVQETEP---------SA331
KCNA2R---------FFACPSKAGFFTNIMNIIDI>V<AIIPYFITLGTELAEKPE-------DAQQG284
KCNA3R---------FFACPSKATFSRNIMNLIDI>V<AIIPYFITLGTELAERQ----------GNG354
KCNA4R---------CFACPSQALFFKNIMNIIDI>V<SILPYFITLGTDLAQQQGG------GNGQQ434
KCNA5R---------FFACPSKAGFSRNIMNIIDV>V<AIFPYFITLGTELAEQQ---PGGGGGGQNG390
KCNA6R---------FSACPSKPAFFRNIMNIIDL>V<AIFPYFITLGTELVQQQEQQPASGGGGQNG332
KCNA7R---------LLVCPSKAIFFKNVMNLIDF>V<AILPYFVALGTELARQR----------GVG268
KCNB1R---------FLSSPKKWKFFKGPLNAIDL>L<AILPYYVTIFLTES---N--------KSVL287
KCNB2R---------FLSSPNKWKFFKGPLNVIDL>L<AILPYYVTIFLTES---N--------KSVL291
KCNC1R---------VIFCPNKVEFIKNSLNIIDF>V<AILPFYLEVGLSG-------------LSSK301
KCNC2R---------IVFSPNKLEFIKNLLNIIDF>V<AILPFYLEVGLSG-------------LSSK338
KCNC3R---------ITFCPDKVEFLKSSLNIIDC>V<AILPFYLEVGLSG-------------LSSK404
KCNC4R---------IVCCPDTLDFVKNLLNIIDF>V<AILPFYLEVGLSG-------------LSSK337
KCND1R---------LFAAPSRCRFLRSVMSLIDV>V<AILPYYIGLLVP------------------282
KCND2R---------LAAAPSRYRFVRSVMSIIDV>V<AILPYYIGLVMT------------------280
KCND3R---------LFAAPSRYRFIRSVMSIIDV>V<AIMPYYIGLVMT------------------277
KCNF1R---------LFSSPNKLHFALSFMNIVDV>L<AILPFYVSLTLTHL-----------GARMM280
KCNG1R---------LIQAPSKFAFLRSPLTLIDL>V<AILPYYITLLVDGAAAGRR----KPGAGNS333
KCNG2R---------SLQAESKCAFLRAPLNIIDI>L<ALLPFYVSLLLGL-----A----AGPGGTK278
KCNG3R---------FIVSKNKCEFVKRPLNIIDL>L<AITPYYISVLMTV-----------FTGENS279
KCNG4R---------FVQAQDKCQFFQGPLNIIDI>L<AISPYYVSLAVSEEPPEDG----ERPSGSS327
KCNS1R---------LLLAPSTRNFFCHPLNLIDI>V<SVLPFYLTLLAGVALG-D--------QGGK332
KCNS2R---------FAVAPDFLKFFKNALNLIDL>M<SIVPFYITLVVNLV---V--------ESTP285
KCNS3R---------LAAAPCQKKFWKNPLNIIDF>V<SIIPFYATLAVDTK---E--------EESE280
KCNV1R---------FLCVRDRCRFLRKVPNIIDL>L<AILPFYITLLVESLSG-S--------QTTQ302
KCNV2R---------LASTPDLRRFARSALNLVDL>V<AILPLYLQLLLECFTGEGH----QRGQTVG367
cons                              > <                              

See full Alignment of Paralogues


Known Variants in KCNQ1

ProteinCDSDisease ClassificationDiseasedbSNP linksEffect Prediction
p.I204Fc.610A>T Inherited ArrhythmiaLQTSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited ArrhythmiaLQTS Compendium of cardiac channel mutations in 541 consecutive unrelated patients referred for long QT syndrome genetic testing. Heart Rhythm. 2005 2(5):507-17. 15840476
Inherited ArrhythmiaLQTS Genetic testing for long-QT syndrome: distinguishing pathogenic mutations from benign variants. Circulation. 2009 120(18):1752-60. 19841300
Inherited ArrhythmiaLQTS Mechanistic basis for LQT1 caused by S3 mutations in the KCNQ1 subunit of IKs. J Gen Physiol. 2010 135(5):433-48. 20421371
Inherited ArrhythmiaLQTS Phylogenetic and physicochemical analyses enhance the classification of rare nonsynonymous single nucleotide variants in type 1 and 2 long-QT syndrome. Circ Cardiovasc Genet. 2012 5(5):519-28. doi: 10.1161/CIRCGENETICS.112.963785. 22949429
Inherited ArrhythmiaLQTS Microscopic mechanisms for long QT syndrome type 1 revealed by single-channel analysis of I(Ks) with S3 domain mutations in KCNQ1. Heart Rhythm. 2015 12(2):386-94. doi: 10.1016/j.hrthm.2014.10.029. 25444851
p.I204Mc.612C>G Inherited ArrhythmiaLQTSSIFT: tolerated
Polyphen: possibly damaging
ReportsInherited ArrhythmiaLQTS Genetic testing in the long QT syndrome: development and validation of an efficient approach to genotyping in clinical practice. JAMA. 2005 294(23):2975-80. 16414944
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 Mechanistic basis for LQT1 caused by S3 mutations in the KCNQ1 subunit of IKs. J Gen Physiol. 2010 135(5):433-48. 20421371