Epilepsy, Idiopathic Generalized 16, is also known as epilepsy, idiopathic generalized, susceptibility to, 16. An important gene associated with Epilepsy, Idiopathic Generalized 16 is KCNMA1 (Potassium Calcium-Activated Channel Subfamily M Alpha 1). Affiliated tissues include brain, and related phenotypes are global developmental delay and microcephaly