Developmental and Epileptic Encephalopathy 43, also known as epileptic encephalopathy, early infantile, 43, is related to developmental and epileptic encephalopathy and benign neonatal seizures. An important gene associated with Developmental and Epileptic Encephalopathy 43 is GABRB3 (Gamma-Aminobutyric Acid Type A Receptor Subunit Beta3), and among its related pathways/superpathways are Akt Signaling and Transmission across Chemical Synapses. Affiliated tissues include brain, and related phenotypes are global developmental delay and infantile spasms