small conductance calcium-activated potassium channel activity
Term Information
Accession
GO:0016286
Name
small conductance calcium-activated potassium channel activity
Ontology
molecular_function
Synonyms
SK KCa channels, SK calcium-activated potassium channel activity, small conductance KCa channels
Alternate IDs
None
Definition
Enables the transmembrane transfer of potassium by a channel with a unit conductance of 2 to 20 picoSiemens that opens in response to stimulus by internal calcium ions. Small 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.
Source:
GOC:mtg_transport,
OMIM:602754