Kv7.2 (D9L5S) Rabbit mAb #14752

The voltage gated potassium channel Kv7.2 (KCNQ2) associates with its family member Kv7.3 (KCNQ3) to form an M-channel that is involved in synaptic input response and sub-threshold excitability of neurons (1). This heteromeric channel generates the M-current, a slowly activating and deactivating potassium conductance that determines the neuronal excitability (2,3). Expression of these two M-channel proteins is mainly seen within the central nervous system, with both Kv7.2 and Kv7.3 expressed post-synaptically in the human cortex and hippocampus (4). The calcium-binding protein calmodulin binds two separate sites in Kv7.2 to influence exit of the channel protein from the endoplasmic reticulum and translocation to the plasma membrane (5). Mutations in the corresponding KCNQ2 gene cause benign familial neonatal seizures-1 (BFNS1), an autosomal dominant form of epilepsy characterized by seizure clusters closely following birth (6,7).