Entrez Summary: Potassium channels play a role in many cellular processes including maintenance of the action potential, muscle contraction, hormone secretion, osmotic regulation, and ion flow. This gene encodes a member of the superfamily of potassium channel proteins containing two pore-forming P domains and the encoded protein functions as an outward rectifying potassium channel. A mutation in this gene has been found to be associated with migraine with aura.[provided by RefSeq, Jan 2011].
UniProt Summary: Outward rectifying potassium channel. Produces rapidly activating outward rectifier K(+) currents. May function as background potassium channel that sets the resting membrane potential. Channel activity is directly activated by calcium signal. Activated by the G(q)-protein coupled receptor pathway. The calcium signal robustly activates the channel via calcineurin, whereas the anchoring of 14-3-3/YWHAH interferes with the return of the current to the resting state after activation. Inhibited also by arachidonic acid and other naturally occurring unsaturated free fatty acids. Channel activity is also enhanced by volatile anesthetics, such as isoflurane. Appears to be the primary target of hydroxy-alpha-sanshool, an ingredient of Schezuan pepper. May be involved in the somatosensory function with special respect to pain sensation (By similarity). {ECO:0000250, ECO:0000269|PubMed:12754259, ECO:0000269|PubMed:15562060}.
Pfam DomainsGO Terms
Pfam Domains
Ion trans 2
GO Terms
outward rectifier potassium channel activity
calcium-activated potassium channel activity
potassium ion export across plasma membrane
potassium ion leak channel activity
stabilization of membrane potential
cellular response to pH
export across plasma membrane
response to pH
potassium ion transmembrane transport
potassium ion transport
cellular response to abiotic stimulus
cellular response to environmental stimulus
monovalent inorganic cation transport
regulation of membrane potential
inorganic cation transmembrane transport
cation transmembrane transport
metal ion transport
inorganic ion transmembrane transport
cation transport
ion transmembrane transport
export from cell
response to abiotic stimulus
transmembrane transport
ion transport
integral component of plasma membrane
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)
Compound Hit
No hits were found.
Most Correlated Genes in Chemogenomics
No correlation found to any other genes in chemogenomics.
Tissues where Essential in the Avana Dataset (DepMap 20Q1)
Global Fraction of Cell Lines Where Essential: 0/739