inward rectifier potassium channel activity

id: GO:0005242
name: inward rectifier potassium channel activity
namespace: molecular_function
type: go
obsolete: False

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.

Child Functions

idname
GO:0015272ATP-activated inward rectifier potassium channel activity
GO:0015467G-protein activated inward rectifier potassium channel activity

Parent Functions

idname
GO:0005249voltage-gated potassium channel activity
GO:0015276ligand-gated ion channel activity