Paralogue Annotation for KCNH2 residue 806

Residue details

Gene: KCNH2
Reference Sequences: LRG: LRG_288, Ensembl variant: ENST00000262186 / ENSP00000262186
Amino Acid Position: 806
Reference Amino Acid: G - Glycine
Protein Domain: C-terminus


Paralogue Variants mapped to KCNH2 residue 806

ParalogueVariantAssociated DiseaseMapping QualityConsensusPubmed
CNGA3G548RAchromatopsiaHigh9 14757870

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.



KCNH2FISRGSIEILRG-D--V--VVAILGKNDIF>G<EPLNLYAR------P----GKSNGDVRALT826
KCNH1FVVSGSLEVIQD-D--E--VVAILGKGDVF>G<DVFWKEAT------L----AQSCANVRALT665
KCNH3FVCSGSMEVLKG-G--T--VLAILGKGDLI>G<CELPRREQ------V----VKANADVKGLT666
KCNH4YVCSGSLEVLRD-N--M--VLAILGKGDLI>G<ADIPEPGQEPGLGADPNFVLKTSADVKALT650
KCNH5FVVSGSLEVIQD-D--E--VVAILGKGDVF>G<DIFWKETT------L----AHACANVRALT634
KCNH6FISRGSIEILRD-D--V--VVAILGKNDIF>G<EPVSLHAQ------P----GKSSADVRALT678
KCNH7FLSRGSIEILKD-D--I--VVAILGKNDIF>G<EMVHLYAK------P----GKSNADVRALT829
KCNH8FVCSGSMEVLKD-S--M--VLAILGKGDLI>G<ANLSIKDQ------V----IKTNADVKALT635
CNGA1IIKEGKLAVVAD-D--GVTQFVVLSDGSYF>G<EISILNIKGSKA--G----NRRTANIKSIG569
CNGA2IIKEGKLAVVAD-D--GVTQYALLSAGSCF>G<EISILNIKGSKM--G----NRRTANIRSLG544
CNGA3IINEGKLAVVAD-D--GVTQFVVLSDGSYF>G<EISILNIKGSKS--G----NRRTANIRSIG572
CNGA4IIREGQLAVVAD-D--GITQYAVLGAGLYF>G<EISIINIKGNMS--G----NRRTANIKSLG438
CNGB1IIQAGQVQVLGGPDGKS--VLVTLKAGSVF>G<EISLLAVGG-----G----NRRTANVVAHG1050
CNGB3IIKHGEVQVLGGPDGTK--VLVTLKAGSVF>G<EISLLAAGG-----G----NRRTANVVAHG612
HCN1FIQHGVAGVITK-S--S--KEMKLTDGSYF>G<EICLLTKG------------RRTASVRADT557
HCN2FIQHGVVSVLTK-G--N--KEMKLSDGSYF>G<EICLLTRG------------RRTASVRADT626
HCN3FIQHGLLSVLAR-G--A--RDTRLTDGSYF>G<EICLLTRG------------RRTASVRADT510
HCN4FIQHGVVSVLTK-G--N--KETKLADGSYF>G<EICLLTRG------------RRTASVRADT677
cons                              > <                              

See full Alignment of Paralogues


Known Variants in KCNH2

ProteinCDSDisease ClassificationDiseasedbSNP linksEffect Prediction
p.G806Ec.2417G>A 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
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.Gly806Alac.2417G>C UnknownSIFT:
Polyphen: