Paralogue Annotation for KCNH2 residue 696

Residue details

Gene: KCNH2
Reference Sequences: LRG: LRG_288, Ensembl variant: ENST00000262186 / ENSP00000262186
Amino Acid Position: 696
Reference Amino Acid: R - Arginine
Protein Domain: C-terminus


Paralogue Variants mapped to KCNH2 residue 696

ParalogueVariantAssociated DiseaseMapping QualityConsensusPubmed
CNGA3R436WColour-blindness, totalHigh9 11536077, 20088482, 25943428, 26992781
CNGB1R916HRetinitis pigmentosaHigh9 22025579
CNGA3R436QCone dystrophyHigh9 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.



KCNH2LYSGTARYHTQMLRVREFIRFHQIPNPLRQ>R<LEEYFQHAWSYTNGIDMNAVLKGFPECLQA726
KCNH1MYANTNRYHEMLNSVRDFLKLYQVPKGLSE>R<VMDYIVSTWSMSRGIDTEKVLQICPKDMRA565
KCNH3MYARRFLYHSRTRDLRDYIRIHRIPKPLKQ>R<MLEYFQATWAVNNGIDTTELLQSLPDELRA567
KCNH4MYSRRSLYHSRMKDLKDFIRVHRLPRPLKQ>R<MLEYFQTTWAVNSGIDANELLRDFPDELRA541
KCNH5MYANTNRYHEMLNNVRDFLKLYQVPKGLSE>R<VMDYIVSTWSMSKGIDTEKVLSICPKDMRA534
KCNH6LYSGTARYHTQMLRVKEFIRFHQIPNPLRQ>R<LEEYFQHAWSYTNGIDMNAVLKGFPECLQA578
KCNH7LYSGTARYHMQMLRVKEFIRFHQIPNPLRQ>R<LEEYFQHAWTYTNGIDMNMVLKGFPECLQA729
KCNH8MYSRWSLYHTRTKDLKDFIRVHHLPQQLKQ>R<MLEYFQTTWSVNNGIDSNELLKDFPDELRS536
CNGA1MNAARAEFQARIDAIKQYMHFRNVSKDMEK>R<VIKWFDYLWTNKKTVDEKEVLKYLPDKLRA463
CNGA2MNATRAEFQAKIDAVKHYMQFRKVSKGMEA>K<VIRWFDYLWTNKKTVDEREILKNLPAKLRA438
CNGA3MNASRAEFQAKIDSIKQYMQFRKVTKDLET>R<VIRWFDYLWANKKTVDEKEVLKSLPDKLKA466
CNGA4MNTADAAFYPDHALVKKYMKLQHVNRKLER>R<VIDWYQHLQINKKMTNEVAILQHLPERLRA332
CNGB1ATAGQTYYRSCMDSTVKYMNFYKIPKSVQN>R<VKTWYEYTWHSQGMLDESELMVQLPDKMRL946
CNGB3ATANQNYFRACMDDTIAYMNNYSIPKLVQK>R<VRTWYEYTWDSQRMLDESDLLKTLPTTVQL508
HCN1LDSSRRQYQEKYKQVEQYMSFHKLPADMRQ>K<IHDYYEHRYQG-KIFDEENILNELNDPLRE459
HCN2LDSSRRQYQEKYKQVEQYMSFHKLPADFRQ>K<IHDYYEHRYQG-KMFDEDSILGELNGPLRE528
HCN3LDSSRRQYQEKYKQVEQYMSFHKLPADTRQ>R<IHEYYEHRYQG-KMFDEESILGELSEPLRE412
HCN4LDSSRRQYQEKYKQVEQYMSFHKLPPDTRQ>R<IHDYYEHRYQG-KMFDEESILGELSEPLRE579
cons                              > <                              

See full Alignment of Paralogues


Known Variants in KCNH2

ProteinCDSDisease ClassificationDiseasedbSNP linksEffect Prediction
p.R696Cc.2086C>T Inherited ArrhythmiaLQTSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited ArrhythmiaLQTS Spectrum of pathogenic mutations and associated polymorphisms in a cohort of 44 unrelated patients with long QT syndrome. Clin Genet. 2006 70(3):214-27. 16922724
Inherited ArrhythmiaLQTS Torsades de pointes complicating atrioventricular block: evidence for a genetic predisposition. Heart Rhythm. 2007 4(2):170-4. 17275752
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.R696Pc.2087G>C Inherited ArrhythmiaLQTSSIFT: deleterious
Polyphen: probably damaging
ReportsInherited ArrhythmiaLQTS Genetic testing in the long QT syndrome: development and validation of an efficient approach to genotyping in clinical practice. JAMA. 2005 294(23):2975-80. 16414944
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.R696Hc.2087G>A Putative BenignSIFT:
Polyphen: