OnCo

KCNQ5 (Potassium voltage-gated channel subfamily KQT member 5) is a gene. The public catalogues list it as a drug target, and an approved or late-stage drug is recorded against it. This dossier gathers the 0 products (0 approved), 0 trials, 0 pathways and 0 resistance routes in the corpus that involve it, with external identifiers so it can be joined to UniProt, ChEMBL, Open Targets and the rest of biology.

Biology

Pore-forming subunit of the voltage-gated potassium (Kv) channel broadly expressed in brain and involved in the regulation of neuronal excitability. Associates with KCNQ3/Kv7.3 pore-forming subunit to form a potassium channel which contributes to M-type current, a slowly activating and deactivating potassium conductance which plays a critical role in determining the subthreshold electrical excitability of neurons. Contributes, with other potassium channels, to the molecular diversity of a heterogeneous population of M-channels, varying in kinetic and pharmacological properties, which underlie this physiologically important current. Also forms a functional channel with KCNQ1/Kv7.1 subunit that may contribute to vasoconstriction and hypertension. Channel may be selectively permeable in vitro to other cations besides potassium, in decreasing order of affinity K(+) = Rb(+) > Cs(+) > Na(+). Similar to the native M-channel, KCNQ3-KCNQ5 potassium channel is suppressed by activation of the muscarinic acetylcholine receptor CHRM1. Location: Cell membrane (UniProt). Locus 6q13 (HGNC).

Class: other · Gene: KCNQ5 · Facts checked 2026-09-23 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

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Query for this target: (TITLE:"KCNQ5" OR ABSTRACT:"KCNQ5" OR TITLE:"potassium voltage-gated channel subfamily Q member 5" OR ABSTRACT:"potassium voltage-gated channel subfamily Q member 5" OR TITLE:"Potassium voltage-gated channel subfamily KQT member 5" OR ABSTRACT:"Potassium voltage-gated channel subfamily KQT member 5" OR TITLE:"Kv7.5" OR ABSTRACT:"Kv7.5") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about KCNQ5, not a curated reading list.

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The dossier as machine-readable JSON: identifiers from HGNC, Ensembl, UniProt and ChEMBL, products with status, trials, pathways, hotspots, open questions and assays. The full entity record is in the open API at /api/v1/entities/kcnq5.json. Licence CC BY-NC 4.0.