inward rectifier potassium channel activity
name: inward rectifier potassium channel activity
Description: Catalysis of the transmembrane transfer of a potassium ion by an inwardly-rectifying voltage-gated channel. An inwardly rectifying current-voltage relation is one where at any given driving force the inward flow of K+ ions exceeds the outward flow for the opposite driving force. The inward-rectification is due to a voltage-dependent block of the channel pore by a specific ligand or ligands, and as a result the macroscopic conductance depends on the difference between membrane voltage and the K+ equilibrium potential rather than on membrane voltage itself.
|GO:0015272||ATP-activated inward rectifier potassium channel activity|
|GO:0015467||G-protein activated inward rectifier potassium channel activity|
|GO:0005249||voltage-gated potassium channel activity|
|GO:0015276||ligand-gated ion channel activity|