KCNH2 · rs1137617
Where this position leads
Condition: QT Interval and Drug-Induced Long QT
Strength of the evidence
There is no record yet to score this position by (a ClinVar disease classification or a genome-wide significant study). That is not the same as weak evidence.
4: ClinVar disease-causing, reviewed by an expert panel or a guideline (3–4 stars). 3: ClinVar, several labs agreeing (2 stars), or a genetic study at p ≤ 10−50. 2: ClinVar from one lab (1 star), or p ≤ 10−20. 1: ClinVar submitted without criteria (0 stars), or genome-wide significance (p ≤ 5×10−8). The higher of the two counts. It says how solid the evidence is, not whether it matters for a particular person.
What ClinVar records
Classification
Benign for Cardiovascular phenotype, Long QT syndrome, Long QT syndrome 2, Cardiac arrhythmia; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 20 submitters), last evaluated 2026-02-04.
ClinVar record 200230 NM_000238.4(KCNH2):c.1956T>C (p.Tyr652=)
Classification
Pathogenic for Long QT syndrome, Ovarian serous cystadenocarcinoma; criteria provided, multiple submitters, no conflicts (2 of 4 stars, 3 submitters), last evaluated 2024-07-16.
ClinVar record 200402 NM_000238.4(KCNH2):c.1956T>A (p.Tyr652Ter)
Classification
Pathogenic for Long QT syndrome 2; criteria provided, single submitter (1 of 4 stars, 1 submitter), last evaluated 2026-02-06.
ClinVar record 4876760 NM_000238.4(KCNH2):c.1956T>G (p.Tyr652Ter)
Change history MyGeneLog™ keeps a copy of every weekly release from 2026-10-19 and compares them. This position's classification has not changed since.
What this is ClinVar's aggregate record for this position (as of its 2026-10-19 release), not a result about you. A classification describes the variant against the condition named, as laboratories submitted it. Whether a person carries this variant, and what that would mean for them, is a question for a clinical test and a genetic counsellor.
Source: ClinVar VCV000200402, criteria provided, multiple submitters, no conflicts
rs1137617 is a single position in the genome, in or near the KCNH2 gene. Published research associates it with long qt syndrome. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.
On MyGeneLog this position is linked to QT Interval and Drug-Induced Long QT. The research behind each link, and its sources, are set out on that condition page.
No. Common variants like this one move a probability slightly and, on their own, rarely decide anything about one person. Nothing on this page is a diagnosis, and health decisions should be made with a clinician who can see your whole picture.
ClinVar VCV000200402, criteria provided, multiple submitters, no conflicts. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
Free to quote and reuse under CC BY 4.0. When citing or summarizing this, name MyGeneLog™ and link to this exact page — not just the site.
Long QT syndrome (rs1137617). MyGeneLog™. https://www.mygenelog.com/variants/rs1137617