potassium voltage-gated channel subfamily Q member 4
Gene Summary
The protein encoded by this gene forms a potassium channel that is thought to play a critical role in the regulation of neuronal excitability, particularly in sensory cells of the cochlea. The current generated by this channel is inhibited by M1 muscarinic acetylcholine receptors and activated by retigabine, a novel anti-convulsant drug. The encoded protein can form a homomultimeric potassium channel or possibly a heteromultimeric channel in association with the protein encoded by the KCNQ3 gene. Defects in this gene are a cause of nonsyndromic sensorineural deafness type 2 (DFNA2), an autosomal dominant form of progressive hearing loss. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
Molecular Weight(MW)
77kDa
Cellular Localization
Basal cell membrane.
Application
WB
Western blot analysis of KCNQ4 in rat tissue lysates using a 1:1000 dilution of the antibody.
IHC
IHC analysis of KCNQ4 in frozen sections of mouse brain extract using the antibody.