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GO Term : intermediate conductance calcium-activated potassium channel activity [GO:0022894] Gene Ontology

Namespace  molecular_function Obsolete  false
description  Enables the transmembrane transfer of potassium by a channel with a unit conductance of 20 to 85 picoSiemens that opens in response to stimulus by internal calcium ions. Intermediate conductance calcium-activated potassium channels are more sensitive to calcium than are large conductance calcium-activated potassium channels. Transport by a channel involves catalysis of facilitated diffusion of a solute (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel, without evidence for a carrier-mediated mechanism.
  • synonyms:
  • IK KCa channels,
  • IK calcium-activated potassium channel activity,
  • intermediate conductance KCa channels
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Function

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