Paralogue Annotation for KCNH2 residue 342

Residue details

Gene: KCNH2
Reference Sequences: LRG: LRG_288, Ensembl variant: ENST00000262186 / ENSP00000262186
Amino Acid Position: 342
Reference Amino Acid: D - Aspartate
Protein Domain: N-terminus


Paralogue Variants mapped to KCNH2 residue 342

ParalogueVariantAssociated DiseaseMapping QualityConsensusPubmed
CNGB3S156FAchromatopsiaLow1 25616768, 26106334

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.



KCNH2LLNSTSDSDLVRYR---TISKIPQITLNFV>D<LKGDPFLASP-T-SDREII-AP-KIK-E--365
KCNH1-----------KFA---------------->-<-RLTRALTSS-R-GVLQQL-APS-VQKG--175
KCNH3------------S----------------->-<KGFNANRRRS-R-AVLYHL-SGH-LQK---183
KCNH4------------A----------------->T<WKFRSARRRS-R-TVLHRL-TGH-FGR---185
KCNH5-----------KFA---------------->-<-RLTRALTNS-R-SVLQQL-TPM-NKT---172
KCNH6-------TGRGKYR---TISQIPQFTLNFV>E<FNLEKHRSSS-T-TEIEII-APHKVV-E--214
KCNH7LLGSTSDSNLNKYS---TINKIPQLTLNFS>E<VKTEKKNSSPPS-SDKTII-AP-KVK-D--365
KCNH8------------A----------------->G<THFDSARRRS-R-AVLYHI-SGH-LQR---180
CNGA1----------------------------KK>K<-KKKEKKSKS-D-DKNENKNDPE-KK----129
CNGA2----------------------------FL>E<-RFRGPELQT-V-TTQEGDGKG--D-----116
CNGA3----------------------------FP>D<-RFRGAELKE-V-SSQESNAQ-A-NVGS--123
CNGA4------------------------------>-<------KVKT-T-ES---------------12
CNGB1IINDRLQELVKLFKERTEKV-KEKLIDPDV>T<SDEE-SPKPSPA-KKAPEP-APD-TKPAEA618
CNGB3YADAQLHNLVKRMRQRTALY-KKKLVEGDL>S<S-----PEASPQ-TAKPTA-VPP-VKES--176
HCN1------------------------------>-<-EDAEGPR-R-QYGFMQRQ--FT-SM----101
HCN2------------------------------>-<-PAGEPRG-S-QASFMQRQ--FG-AL----170
HCN3------------------------------>-<-PE------P-----KRRH--LG-TL----52
HCN4------------------------------>-<-PEAEVRL-G-QAGFMQRQ--FG-AM----221
cons                              > <                              

See full Alignment of Paralogues


Known Variants in KCNH2

ProteinCDSDisease ClassificationDiseasedbSNP linksEffect Prediction
p.D342Vc.1025A>T Other Cardiac PhenotypeSIFT: deleterious
Polyphen: probably damaging
ReportsOther Cardiac Phenotype Latent genetic backgrounds and molecular pathogenesis in drug-induced long-QT syndrome. Circ Arrhythm Electrophysiol. 2009 2(5):511-23. 19843919
p.D342Ac.1025A>C Putative BenignSIFT:
Polyphen: