Developmental and Epileptic Encephalopathy 26, also known as epileptic encephalopathy, early infantile, 26, is related to kcnb1 encephalopathy and developmental and epileptic encephalopathy 38. An important gene associated with Developmental and Epileptic Encephalopathy 26 is KCNB1 (Potassium Voltage-Gated Channel Subfamily B Member 1), and among its related pathways/superpathways are Dopamine-DARPP32 Feedback onto cAMP Pathway and Potassium Channels. Affiliated tissues include brain, and related phenotypes are global developmental delay and bilateral tonic-clonic seizure