Varaico: Literature-Extracted Genetic Variants

Gene:KCNH2
Variant:p.A490T
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KCNH2

NM_000238.4:p.A490T

Associated Papers

SPARC: a structural pathogenicity algorithm for risk classification of hERG variants.

Chatelain FC et al.

Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology, 2026

41443252 (PubMed )
Supplement: euaf327_supplementary_data.zip › Table-S1-V2.xlsx › All_missense_variants

High-throughput screens identify genotype-specific therapeutics for channelopathies.

Egly CL et al.

Jci Insight, 2025

41026531 (PubMed )
Supplement: jciinsight-10-191697-s190.xlsx › Figure_6B

Topological Distribution of KCNH2 Variants and Genotype-Phenotype Relationship in Patients With Long QT Syndrome.

Liu H et al.

Pacing and Clinical Electrophysiology : Pace, 2025

Computational analysis of congenital heart disease associated SNPs: unveiling their impact on the gene regulatory system.

Vashisht S et al.

Bmc Genomics, 2025

39838281 (PubMed )
Supplement: 12864_2025_11232_MOESM4_ESM.xlsx › ClinVar_CHD-SNPs_uniq

Multiplexed Assays of Variant Effect and Automated Patch-clamping Improve KCNH2-LQTS Variant Classification and Cardiac Event Risk Stratification.

O'Neill MJ et al.

Medrxiv : the Preprint Server for Health Sciences, 2024

38370760 (PubMed )
Supplement: media-2.xlsx › Table_S5

Major Cardiac Events in Patients and Relatives With Hereditary Hypertrophic Cardiomyopathy.

Nielsen SK et al.

Jacc. Advances, 2023

38938358 (PubMed )
Supplement: mmc1.docx

Identification of a novel pathogenic variant in KCNH2 in an Iranian family with long QT syndrome 2 by whole-exome sequencing.

Fazelifar AF et al.

Journal of Arrhythmia, 2023

A need for exhaustive and standardized characterization of ion channels activity. The case of KV11.1.

Alameh M et al.

Frontiers in Physiology, 2023

36860515 (PubMed )
Supplement: Table1.XLSX › missense_variants

Establishment of a Dedicated Inherited Cardiomyopathy Clinic: From Challenges to Improved Patients' Outcome.

Smith E et al.

Journal of the American Heart Association, 2022

Dual myosin binding protein C3 and potassium voltage-gated channel subfamily H member 2 co-inherited pathogenic variants in a patient with hypertrophic cardiomyopathy and long QT 2 syndrome: A case report.

Alvarez CK et al.

Heartrhythm Case Reports, 2022

Penetrance and outcomes at 1-year following return of actionable variants identified by genome sequencing.

Lee C et al.

Genetics in Medicine : Official Journal of the American College of Medical Genetics, 2021

33824501 (PubMed )
Supplement: NIHMS1700422-supplement-Supplementary___Appendix__online_only_material__etc___2.pdf

Enhancing rare variant interpretation in inherited arrhythmias through quantitative analysis of consortium disease cohorts and population controls.

Walsh R et al.

Genetics in Medicine : Official Journal of the American College of Medical Genetics, 2021

32893267 (PubMed )
Supplement: 41436_2020_946_MOESM2_ESM.xlsx › S12

A computational analysis of the effect of sevoflurane in a human ventricular cell model of long QT syndrome: Importance of repolarization reserve in the QT-prolonging effect of sevoflurane.

Kojima A et al.

European Journal of Pharmacology, 2020

Frequency of genomic secondary findings among 21,915 eMERGE network participants.

Unknown Author

Genetics in Medicine : Official Journal of the American College of Medical Genetics, 2020

32546831 (PubMed )
Supplement: NIHMS1615423-supplement-Supplementary_Table_2.xlsx › Sheet1

Structures Illuminate Cardiac Ion Channel Functions in Health and in Long QT Syndrome.

Brewer KR et al.

Frontiers in Pharmacology, 2020

32431610 (PubMed )
Supplement: Table_1.xlsx › mutation_list

Association of Genetic and Clinical Aspects of Congenital Long QT Syndrome With Life-Threatening Arrhythmias in Japanese Patients.

Shimizu W et al.

Jama Cardiology, 2019

Acquired Long-QT Syndrome: Mild but Abnormal?

Kashiwa A et al.

Internal Medicine (tokyo, Japan), 2018

Influence of genetic modifiers on sudden cardiac death cases.

Jenewein T et al.

International Journal of Legal Medicine, 2018

Genetic modulators of the phenotype in the long QT syndrome: state of the art and clinical impact.

Napolitano C et al.

Current Opinion in Genetics & Development, 2015

Large-scale mutational analysis of Kv11.1 reveals molecular insights into type 2 long QT syndrome.

Anderson CL et al.

Nature Communications, 2014

25417810 (PubMed )
Supplement: NIHMS634670-supplement-1.pdf

Where genotype is not predictive of phenotype: towards an understanding of the molecular basis of reduced penetrance in human inherited disease.

Cooper DN et al.

Human Genetics, 2013

An in vivo cardiac assay to determine the functional consequences of putative long QT syndrome mutations.

Jou CJ et al.

Circulation Research, 2013

A novel missense mutation causing a G487R substitution in the S2-S3 loop of human ether-à-go-go-related gene channel.

Kinoshita K et al.

Journal of Cardiovascular Electrophysiology, 2012

Inherited long QT syndrome: clinical manifestation, genetic diagnostics, and therapy.

Zumhagen S et al.

Herzschrittmachertherapie & Elektrophysiologie, 2012

Atrioventricular block-induced Torsades de Pointes with clinical and molecular backgrounds similar to congenital long QT syndrome.

Oka Y et al.

Circulation Journal : Official Journal of the Japanese Circulation Society, 2010

Gene mutations associated with atrioventricular block complicated by long QT syndrome.

Nishizaki M et al.

Circulation Journal : Official Journal of the Japanese Circulation Society, 2010

PhenoHM: human-mouse comparative phenome-genome server.

Sardana D et al.

Nucleic Acids Research, 2010

20507906 (PubMed )
Supplement: gkq472_nar-00429-web-b-2010-File006.xls › MPO_to_OMIM_allelic_Variants

Protective effect of KCNH2 single nucleotide polymorphism K897T in LQTS families and identification of novel KCNQ1 and KCNH2 mutations.

Zhang X et al.

Bmc Medical Genetics, 2008

Mutation site dependent variability of cardiac events in Japanese LQT2 form of congenital long-QT syndrome.

Nagaoka I et al.

Circulation Journal : Official Journal of the Japanese Circulation Society, 2008

The long QT syndrome family of cardiac ion channelopathies: a HuGE review.

Modell SM et al.

Genetics in Medicine : Official Journal of the American College of Medical Genetics, 2006

Inherited arrhythmic disorders in Japan.

Hiraoka M

Journal of Cardiovascular Electrophysiology, 2003

Bradycardia-induced long QT syndrome caused by a de novo missense mutation in the S2-S3 inner loop of HERG.

Yoshida H et al.

American Journal of Medical Genetics, 2001

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Regarding the variants extracted from papers and shown text snippets from research papers, the following holds: "Some rights reserved. This work permits non-commercial use, distribution and reproduction in any medium, provided the original author and source are credited."