small conductance calcium-activated potassium channel activity
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.
GO:0015269
calcium-activated potassium channel activity
is_a
SK KCa channels
exact
SK calcium-activated potassium channel activity
exact
small conductance KCa channels
exact