Paralogue Annotation for KCNH2 residue 569

Residue details

Gene: KCNH2
Reference Sequences: LRG: LRG_288, Ensembl variant: ENST00000262186 / ENSP00000262186
Amino Acid Position: 569
Reference Amino Acid: Y - Tyrosine
Protein Domain: Transmembrane/Linker/Pore


Paralogue Variants mapped to KCNH2 residue 569

ParalogueVariantAssociated DiseaseMapping QualityConsensusPubmed
CNGA3F322SCone dystrophyMedium9 24903488

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 KCNH2.



KCNH2---SEYGAAV-LFLLMCTFALIAHWLACIW>Y<AIGNMEQPHMDSR----IGWLHNLGDQIGK595
KCNH1---IEYGAAV-LVLLVCVFGLAAHWMACIW>Y<SIGDYEIFDEDTKTIRNNSWLYQLAMDIGT428
KCNH3---SQYSAVV-LTLLMAVFALLAHWVACVW>F<YIGQREIESSESELPE-IGWLQELARRLET408
KCNH4---SQCSAVV-LTLLMSVFALLAHWMACIW>Y<VIGRREMEANDPLLWD-IGWLHELGKRLEV410
KCNH5---LEYGAAV-LVLLVCVFGLVAHWLACIW>Y<SIGDYEVIDEVTNTIQIDSWLYQLALSIGT398
KCNH6---SEYGAAV-LFLLMCTFALIAHWLACIW>Y<AIGNVERPYLEHK----IGWLDSLGVQLGK446
KCNH7---SEYGAAV-LMLLMCIFALIAHWLACIW>Y<AIGNVERPYLTDK----IGWLDSLGQQIGK597
KCNH8---SQHSTIV-LTLLMSMFALLAHWMACIW>Y<VIGKMEREDNSLLKWE-VGWLHELGKRLES404
CNGA1---TNYPNIFRISNLVMYIVIIIHWNACVF>Y<SISKAIGFGND-------TWVYPD---IND339
CNGA2---TNYPNIFRISNLVLYILVIIHWNACIY>Y<AISKSIGFGVD-------TWVYPN---ITD314
CNGA3---TNYPNMFRIGNLVLYILIIIHWNACIY>F<AISKFIGFGTD-------SWVYPN---ISI342
CNGA4---TAYPNAFRIAKLMLYIFVVIHWNSCLY>F<ALSRYLGFGRD-------AWVYPD---PAQ208
CNGB1---LSKAYVYRVIRTTAYLLYSLHLNSCLY>Y<WASAYQGLGST-------HWVYD-------826
CNGB3---MDKAYIYRVIRTTGYLLFILHINACVY>Y<WASNYEGIGTT-------RWVYD-------388
HCN1MTYDLASAVVRIFNLIGMMLLLCHWDGCLQ>F<LVPLLQDFPPD-------CWVS-----LNE335
HCN2MTYDLASAVMRICNLISMMLLLCHWDGCLQ>F<LVPMLQDFPRN-------CWVS-----ING404
HCN3MTYDLASAVVRIFNLIGMMLLLCHWDGCLQ>F<LVPMLQDFPPD-------CWVS-----INH288
HCN4MTYDLASAVVRIVNLIGMMLLLCHWDGCLQ>F<LVPMLQDFPDD-------CWVS-----INN455
cons                              > <                              

See full Alignment of Paralogues


Known Variants in KCNH2

ProteinCDSDisease ClassificationDiseasedbSNP linksEffect Prediction
p.Y569Hc.1705T>C Inherited ArrhythmiaLQTSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited ArrhythmiaLQTS Sinus node function and ventricular repolarization during exercise stress test in long QT syndrome patients with KvLQT1 and HERG potassium channel defects. J Am Coll Cardiol. 1999 34(3):823-9. 10483966
Inherited ArrhythmiaLQTS Survey of the coding region of the HERG gene in long QT syndrome reveals six novel mutations and an amino acid polymorphism with possible phenotypic effects. Hum Mutat. 2000 15(6):580-1. 10862094
Inherited ArrhythmiaLQTS Large-scale mutational analysis of Kv11.1 reveals molecular insights into type 2 long QT syndrome. Nat Commun. 2014 5:5535. doi: 10.1038/ncomms6535. 25417810
p.Y569Cc.1706A>G Inherited ArrhythmiaLQTSSIFT:
Polyphen:
ReportsInherited ArrhythmiaLQTS Founder mutations characterise the mutation panorama in 200 Swedish index cases referred for Long QT syndrome genetic testing. BMC Cardiovasc Disord. 2012 12:95. doi: 10.1186/1471-2261-12-95. 23098067