**3. Potassium channels**

K+ channels control the resting membrane potential and enable rapid repolarization of the AP by producing outward K+ currents, thus limiting neuronal excitability. K+ channels are composed of four pore forming a subunits and modulatory b subunits. Kv channels are the largest ion channel group (Kv1–Kv12) that are expressed substantially in the CNS. Dysfunction of Kv channels including Ca2+ activated K<sup>+</sup> channels, are associated with epilepsy [2].
