Paralogue Annotation for KCNH2 residue 601

Residue details

Gene: KCNH2
Reference Sequences: LRG: LRG_288, Ensembl variant: ENST00000262186 / ENSP00000262186
Amino Acid Position: 601
Reference Amino Acid: G - Glycine
Protein Domain: Transmembrane/Linker/Pore


Paralogue Variants mapped to KCNH2 residue 601

No paralogue variants have been mapped to residue 601 for KCNH2.



KCNH2--IGWLHNLGDQIGKPYNSS---------->G<------------------LGGPSIKDKYVT613
KCNH1RNNSWLYQLAMDIGTPYQFN--------GS>G<-----------S--GK-WEGGPSKNSVYIS452
KCNH3E-IGWLQELARRLETPYYLVGRRPAGGNSS>G<QSDNCSSSSEANGTGLELLGGPSLRSAYIT454
KCNH4D-IGWLHELGKRLEVPYVNG---------->-<-----------------SVGGPSRRSAYIA428
KCNH5QIDSWLYQLALSIGTPYRYN--------T->S<-----------A--GI-WEGGPSKDSLYVS421
KCNH6--IGWLDSLGVQLGKRYNGS---------->D<-----------P------ASGPSVQDKYVT465
KCNH7--IGWLDSLGQQIGKRYNDS---------->D<-----------S------SSGPSIKDKYVT616
KCNH8E-VGWLHELGKRLESPYYGNN--------->-<-----------------TLGGPSIRSAYIA423
CNGA1---TWVYPD---INDP-------------->-<-------------------EFGRLARKYVY351
CNGA2---TWVYPN---ITDP-------------->-<-------------------EYGYLAREYIY326
CNGA3---SWVYPN---ISIP-------------->-<-------------------EHGRLSRKYIY354
CNGA4---AWVYPD---PAQP-------------->-<-------------------GFERLRRQYLY220
CNGB1---HWVYD---------------------->-<----------------------GVGNSYIR834
CNGB3---RWVYD---------------------->-<----------------------GEGNEYLR396
HCN1---CWVS-----LNEM-------------->-<-------------------VNDSWGKQYSY347
HCN2---CWVS-----INGM-------------->-<-------------------VNHSWSELYSF416
HCN3---CWVS-----INHM-------------->-<-------------------VNHSWGRQYSH300
HCN4---CWVS-----INNM-------------->-<-------------------VNNSWGKQYSY467
cons                              > <                              

See full Alignment of Paralogues


Known Variants in KCNH2

ProteinCDSDisease ClassificationDiseasedbSNP linksEffect Prediction
p.G601Cc.1801G>T Inherited ArrhythmiaLQTSSIFT: tolerated
Polyphen: possibly 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
Inherited ArrhythmiaLQTS Genetic testing for long-QT syndrome: distinguishing pathogenic mutations from benign variants. Circulation. 2009 120(18):1752-60. 19841300
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 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.G601Sc.1801G>A Inherited ArrhythmiaLQTSSIFT: tolerated
Polyphen: benign
ReportsInherited ArrhythmiaLQTS Novel missense mutation (G601S) of HERG in a Japanese long QT syndrome family. Hum Mutat. 1998 Suppl 1:S184-6. 9452080
Inherited 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 Most LQT2 mutations reduce Kv11.1 (hERG) current by a class 2 (trafficking-deficient) mechanism. Circulation. 2006 113(3):365-73. 16432067
Inherited ArrhythmiaLQTS Mutation site dependent variability of cardiac events in Japanese LQT2 form of congenital long-QT syndrome. Circ J. 2008 72(5):694-9. 18441445
Inherited ArrhythmiaLQTS Molecular genetic analysis of long QT syndrome in Norway indicating a high prevalence of heterozygous mutation carriers. Scand J Clin Lab Invest. 2008 68(5):362-8. 18752142
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 Genetic testing for long-QT syndrome: distinguishing pathogenic mutations from benign variants. Circulation. 2009 120(18):1752-60. 19841300
Inherited ArrhythmiaLQTS Trafficking-deficient hERG K⁺ channels linked to long QT syndrome are regulated by a microtubule-dependent quality control compartment in the ER. Am J Physiol Cell Physiol. 2011 301(1):C75-85. 21490315
Inherited ArrhythmiaLQTS Comparison of protein behavior between wild-type and G601S hERG in living cells by fluorescence correlation spectroscopy. J Physiol Sci. 2011 61(4):313-9. doi: 10.1007/s12576-011-0150-2. 21573751
Inherited ArrhythmiaLQTS Novel mechanism associated with an inherited cardiac arrhythmia: defective protein trafficking by the mutant HERG (G601S) potassium channel. Circulation. 1999 99(17):2290-4. 10226095
Inherited ArrhythmiaLQTS The binding site for channel blockers that rescue misprocessed human long QT syndrome type 2 ether-a-gogo-related gene (HERG) mutations. J Biol Chem. 2002 277(7):4989-98. 11741928
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 Pharmacological correction of long QT-linked mutations in KCNH2 (hERG) increases the trafficking of Kv11.1 channels stored in the transitional endoplasmic reticulum. Am J Physiol Cell Physiol. 2013 305(9):C919-30. doi: 10.1152/ajpcell.00406.2012. 23864605
Inherited ArrhythmiaLQTS An in vivo cardiac assay to determine the functional consequences of putative long QT syndrome mutations. Circ Res. 2013 112(5):826-30. doi: 10.1161/CIRCRESAHA.112.300664. 23303164
p.Gly601Aspc.1802G>A UnknownSIFT:
Polyphen: