high-affinity potassium ion transmembrane transporter activity
Enables the transfer of potassium ions from one side of a membrane to the other. In high-affinity transport the transporter is able to bind the solute even if it is only present at very low concentrations.
GO:0015079
potassium ion transmembrane transporter activity
is_a
SPAC3F10.02c SPAC1639.02c