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Catalysis of the transmembrane transfer of a potassium ion by a delayed rectifying voltage-gated channel. A delayed rectifying current-voltage relation is one where channel activation kinetics are time-dependent, and activation is slow. 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 outwardly-rectifying voltage-gated channel. An outwardly rectifying current-voltage relation is one where at any given driving force the outward flow of K+ ions exceeds the inward flow for the opposite driving force. Catalysis of the transmembrane transfer of an ion by a voltage-gated channel. An ion is an atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. Catalysis of the energy-independent passage of cations across a lipid bilayer down a concentration gradient. Catalysis of the transmembrane transfer of a potassium ion by a voltage-gated channel. Catalysis of facilitated diffusion of a potassium ion (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. Catalysis of the transmembrane transfer of a cation by a voltage-gated channel. A cation is a positively charged ion. Catalysis of the transmembrane transfer of a potassium ion by an open rectifier voltage-gated channel. An open rectifier current-voltage relationship is one in which the direction of rectification depends on the external potassium ion concentration.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: voltage-gated potassium channel activity
Acc: GO:0005249
Aspect: Molecular Function
Desc: Catalysis of the transmembrane transfer of a potassium ion by a voltage-gated channel.
Synonyms:
  • voltage-gated potassium ion channel activity
  • voltage-dependent potassium channel activity
  • voltage-sensitive potassium channel
  • voltage gated potassium channel activity
Proteins in PDR annotated with:
   This term: 335 [Search]
   Term or descendants: 431 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0005249 - voltage-gated potassium channel activity (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle