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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. Catalysis of the transmembrane transfer of a potassium ion by an inwardly-rectifying voltage-gated channel, where the inward rectification is due to a voltage-dependent block of the channel pore by ATP. 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. Catalysis of the transmembrane transfer of a potassium ion by a voltage-gated channel. Catalysis of the transmembrane transfer of an ion by a channel that opens when a specific ligand has been bound by the channel complex or one of its constituent parts.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: ATP-activated inward rectifier potassium channel activity
Acc: GO:0015272
Aspect: Molecular Function
Desc: Catalysis of the transmembrane transfer of a potassium ion by an inwardly-rectifying voltage-gated channel, where the inward rectification is due to a voltage-dependent block of the channel pore by ATP. 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.
Proteins in PDR annotated with:
   This term: 10 [Search]
   Term or descendants: 10 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0015272 - ATP-activated inward rectifier potassium channel activity (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle