Voltage-gated potassium (Kv) channels are transmembrane channels specific for potassium, activated by changes in membrane potential. During action potentials, Kv channels are crucial in returning the depolarized cell to a resting state. Kv channels are formed from the α subunits. Auxiliary β subunits can associate and regulate channel activity. (Adapted from
FBrf0224790,
PMID:16382097 and
PMID:11121510).