benign familial neonatal convulsions (BFNC), a condition characterized by recurrent seizures in newborn babies. Channels made with the KCNQ2 protein are active in neurons in the brain, where they transport potassium ions out of cells. These channels transmit a particular type of electrical signal called the M-current, which prevents the neuron from continuing to send signals to other neurons. The M-current ensures that the neuron is not constantly active, or excitable. A mutation in the KCNQ2 gene has been identified in most people with benign familial neonatal convulsions (BFNC). The seizures begin around day 3 of life and usually go away within 1 to 4 months