Paralogue Annotation for KCNH2 residue 630

Residue details

Gene: KCNH2
Reference Sequences: LRG: LRG_288, Ensembl variant: ENST00000262186 / ENSP00000262186
Amino Acid Position: 630
Reference Amino Acid: V - Valine
Protein Domain: Transmembrane/Linker/Pore


Paralogue Variants mapped to KCNH2 residue 630

No paralogue variants have been mapped to residue 630 for KCNH2.



KCNH2--LGGPSIKDKYVTALYFTFSSLTSVGFGN>V<SPNTNSEKIFSICVMLIGSLMYASIFGNVS660
KCNH1-WEGGPSKNSVYISSLYFTMTSLTSVGFGN>I<APSTDIEKIFAVAIMMIGSLLYATIFGNVT499
KCNH3ELLGGPSLRSAYITSLYFALSSLTSVGFGN>V<SANTDTEKIFSICTMLIGALMHAVVFGNVT501
KCNH4-SVGGPSRRSAYIAALYFTLSSLTSVGFGN>V<CANTDAEKIFSICTMLIGALMHAVVFGNVT475
KCNH5-WEGGPSKDSLYVSSLYFTMTSLTTIGFGN>I<APTTDVEKMFSVAMMMVGSLLYATIFGNVT468
KCNH6--ASGPSVQDKYVTALYFTFSSLTSVGFGN>V<SPNTNSEKVFSICVMLIGSLMYASIFGNVS512
KCNH7--SSGPSIKDKYVTALYFTFSSLTSVGFGN>V<SPNTNSEKIFSICVMLIGSLMYASIFGNVS663
KCNH8-TLGGPSIRSAYIAALYFTLSSLTSVGFGN>V<SANTDAEKIFSICTMLIGALMHALVFGNVT470
CNGA1---EFGRLARKYVYSLYWSTLTLTTIG-ET>P<PPVRDSEYVFVVVDFLIGVLIFATIVGNIG397
CNGA2---EYGYLAREYIYCLYWSTLTLTTIG-ET>P<PPVKDEEYLFVIFDFLIGVLIFATIVGNVG372
CNGA3---EHGRLSRKYIYSLYWSTLTLTTIG-ET>P<PPVKDEEYLFVVVDFLVGVLIFATIVGNVG400
CNGA4---GFERLRRQYLYSFYFSTLILTTVG-DT>P<PPAREEEYLFMVGDFLLAVMGFATIMGSMS266
CNGB1------GVGNSYIRCYYFAVKTLITIG-GL>P<DPKTLFEIVFQLLNYFTGVFAFSVMIGQMR880
CNGB3------GEGNEYLRCYYWAVRTLITIG-GL>P<EPQTLFEIVFQLLNFFSGVFVFSSLIGQMR442
HCN1---VNDSWGKQYSYALFKAMSHMLCIGYGA>Q<APVSMSDLWITMLSMIVGATCYAMFVGHAT394
HCN2---VNHSWSELYSFALFKAMSHMLCIGYGR>Q<APESMTDIWLTMLSMIVGATCYAMFIGHAT463
HCN3---VNHSWGRQYSHALFKAMSHMLCIGYGQ>Q<APVGMPDVWLTMLSMIVGATCYAMFIGHAT347
HCN4---VNNSWGKQYSYALFKAMSHMLCIGYGR>Q<APVGMSDVWLTMLSMIVGATCYAMFIGHAT514
cons                              > <                              

See full Alignment of Paralogues


Known Variants in KCNH2

ProteinCDSDisease ClassificationDiseasedbSNP linksEffect Prediction
p.V630Ac.1889T>C Inherited ArrhythmiaLQTSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited ArrhythmiaLQTS Genomic structure of three long QT syndrome genes: KVLQT1, HERG, and KCNE1. Genomics. 1998 51(1):86-97. 9693036
Inherited ArrhythmiaLQTS Increased risk of arrhythmic events in long-QT syndrome with mutations in the pore region of the human ether-a-go-go-related gene potassium channel. Circulation. 2002 105(7):794-9. 11854117
Inherited 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 Most LQT2 mutations reduce Kv11.1 (hERG) current by a class 2 (trafficking-deficient) mechanism. Circulation. 2006 113(3):365-73. 16432067
Inherited ArrhythmiaLQTS [Electrophysiological characterization of long QT syndrome associated mutations V630A and N633S]. Zhonghua Xin Xue Guan Bing Za Zhi. 2006 34(6):523-7. 16842670
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.V630Lc.1888G>C 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 Most LQT2 mutations reduce Kv11.1 (hERG) current by a class 2 (trafficking-deficient) mechanism. Circulation. 2006 113(3):365-73. 16432067
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.V630Ic.1888G>A Putative BenignSIFT: deleterious
Polyphen: probably damaging