Varaico: Literature-Extracted Genetic Variants

Gene:KCNH2
Variant:p.A422T
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KCNH2

NM_000238.4:p.A422T

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

Induced Pluripotent Stem Cells in Congenital Long QT Syndrome: Research Progress and Clinical Applications.

Li Q et al.

Reviews in Cardiovascular Medicine, 2025

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

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

Pharmacological activation of the hERG K+ channel for the management of the long QT syndrome: A review.

El Harchi A et al.

Journal of Arrhythmia, 2022

Deciphering Common Long QT Syndrome Using CRISPR/Cas9 in Human-Induced Pluripotent Stem Cell-Derived Cardiomyocytes.

Song Y et al.

Frontiers in Cardiovascular Medicine, 2022

Modified N-linked glycosylation status predicts trafficking defective human Piezo1 channel mutations.

Li JV et al.

Communications Biology, 2021

Elevation of propofol sensitivity of cardiac IKs channel by KCNE1 polymorphism D85N.

Kojima A et al.

British Journal of Pharmacology, 2021

Patient-specific induced pluripotent stem cells as "disease-in-a-dish" models for inherited cardiomyopathies and channelopathies - 15 years of research.

Micheu MM et al.

World Journal of Stem Cells, 2021

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

Pharmacological activation of IKr in models of long QT Type 2 risks overcorrection of repolarization.

Perry MD et al.

Cardiovascular Research, 2020

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

Brewer KR et al.

Frontiers in Pharmacology, 2020

Phenotype-Based High-Throughput Classification of Long QT Syndrome Subtypes Using Human Induced Pluripotent Stem Cells.

Yoshinaga D et al.

Stem Cell Reports, 2019

Functional Properties of Engineered Heart Slices Incorporating Human Induced Pluripotent Stem Cell-Derived Cardiomyocytes.

Blazeski A et al.

Stem Cell Reports, 2019

An in Vitro Assay of hERG K + Channel Potency for a New EGFR Inhibitor FHND004.

Jin T et al.

Frontiers in Pharmacology, 2018

Human heart disease: lessons from human pluripotent stem cell-derived cardiomyocytes.

Giacomelli E et al.

Cellular and Molecular Life Sciences : Cmls, 2017

Human iPSC-Derived Cardiomyocytes for Investigation of Disease Mechanisms and Therapeutic Strategies in Inherited Arrhythmia Syndromes: Strengths and Limitations.

Casini S et al.

Cardiovascular Drugs and Therapy, 2017

Propofol inhibits hERG K+ channels and enhances the inhibition effects on its mutations in HEK293 cells.

Han SN et al.

European Journal of Pharmacology, 2016

Electrophysiological Characteristics of the LQT2 Syndrome Mutation KCNH2-G572S and Regulation by Accessory Protein KCNE2.

Liu L et al.

Frontiers in Physiology, 2016

Translational toxicology and rescue strategies of the hERG channel dysfunction: biochemical and molecular mechanistic aspects.

Zhang KP et al.

Acta Pharmacologica Sinica, 2014

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

Down-regulation of ether-a-go-go-related gene potassium channel protein through sustained stimulation of AT1 receptor by angiotensin II.

Cai Y et al.

Biochemical and Biophysical Research Communications, 2014

Calcium transients closely reflect prolonged action potentials in iPSC models of inherited cardiac arrhythmia.

Spencer CI et al.

Stem Cell Reports, 2014

Three epilepsy-associated GABRG2 missense mutations at the γ+/β- interface disrupt GABAA receptor assembly and trafficking by similar mechanisms but to different extents.

Huang X et al.

Neurobiology of Disease, 2014

Mechanistic basis for type 2 long QT syndrome caused by KCNH2 mutations that disrupt conserved arginine residues in the voltage sensor.

McBride CM et al.

The Journal of Membrane Biology, 2013

A422T mutation in HERG potassium channel retained in ER is rescurable by pharmacologic or molecular chaperones.

Guo J et al.

Biochemical and Biophysical Research Communications, 2012

Shared desmosome gene findings in early and late onset arrhythmogenic right ventricular dysplasia/cardiomyopathy.

Tan BY et al.

Journal of Cardiovascular Translational Research, 2010

Rescue of mutated cardiac ion channels in inherited arrhythmia syndromes.

Balijepalli SY et al.

Journal of Cardiovascular Pharmacology, 2010

Most LQT2 mutations reduce Kv11.1 (hERG) current by a class 2 (trafficking-deficient) mechanism.

Anderson CL et al.

Circulation, 2006

Compendium of cardiac channel mutations in 541 consecutive unrelated patients referred for long QT syndrome genetic testing.

Tester DJ et al.

Heart Rhythm, 2005

Characterization of a KCNQ1/KVLQT1 polymorphism in Asian families with LQT2: implications for genetic testing.

Sharma D et al.

Journal of Molecular and Cellular Cardiology, 2004

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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."