intracellular sodium-activated potassium channel activity
Enables the transmembrane transfer of potassium by a channel that opens in response to stimulus by a sodium ion or ions. Transport by a channel involves 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. Sodium activated potassium channels have distinctive properties, including a large single channel conductance, subconductance states, and a block of single channel currents at positive potentials, similar to inward rectification.
GO:0005267
potassium channel activity
is_a
GO:0022839
monoatomic ion-gated channel activity
is_a
GO:0099094
ligand-gated monoatomic cation channel activity
is_a
intracellular sodium activated potassium channel activity
exact