Genopathy
Gene-Disorder Association · Article
Gene
KCNH2
Potassium Voltage-Gated Channel Subfamily H Member 2
Disorder
Long Qt Syndrome 2
First reported 1995
Supporting publications 97
Key publication · gene–disorder A molecular basis for cardiac arrhythmia: HERG mutations cause long QT syndrome.Cell · 1995
Key publication · disorder Nicorandil suppresses early afterdepolarisation and ventricular arrhythmias induced by caesium chloride in rabbits in vivo.Cardiovascular research · 1991
Manually curated
Association Review

In brief

The association between KCNH2 (Potassium Voltage-Gated Channel Subfamily H Member 2) and Long Qt Syndrome 2 is well established and manually curated, with its 4 contributing sources — 3 of them expert-curated — recording a known molecular basis, likely-pathogenic variants, and causative variation.

Sources 4
Clinical variants 433
Symptoms 9
Compounds 0
Trials 0
Publications 97
01
At a glance

Association overview

A cited synthesis of the gene–disorder association, with a clinical-actionability summary where the evidence supports one.

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02
Provenance

Evidence and sources

4 sources

Every contributing database and publication behind this association, with evidence type, strength, accessions and deep links.

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03
KCNH2

The gene

2 source summaries

A gene summary alongside the source descriptions it was distilled from.

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04
Long Qt Syndrome 2

The disorder

17 database identifiers

The disorder’s summary, prevalence, aliases and cross-reference identifiers (OMIM, Orphanet, MONDO, ICD-10, MedGen).

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05
Phenotype

Clinical features

8 clinical features

The disorder’s clinical features (HPO) grouped by body system, each with observed frequency and penetrance.

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06
ClinVar and variant evidence

Genetic basis

433 clinical variants

ClinVar variants reported for this pair, with disorder-specific significance, review status, molecular consequence and origin.

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07
Mechanism overlap

Shared mechanisms

Biological pathways and phenotype concepts shared by the gene and the disorder, with supporting publications.

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08
Literature

Reading

97 publications

Publications linking the gene and the disorder, with title, authors, journal, year and citation metrics.

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09
Provenance

References & sources

15 references

Every source and publication cited across this dossier, as one numbered reference list.

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