Developmental and Epileptic Encephalopathy 7, also known as epileptic encephalopathy, early infantile, 7, is related to developmental and epileptic encephalopathy 1 and early infantile epileptic encephalopathy, and has symptoms including tonic seizures An important gene associated with Developmental and Epileptic Encephalopathy 7 is KCNQ2 (Potassium Voltage-Gated Channel Subfamily Q Member 2), and among its related pathways/superpathways are Transmission across Chemical Synapses and Neuropathic Pain-Signaling in Dorsal Horn Neurons. Affiliated tissues include brain and globus pallidus, and related phenotypes are intellectual disability and global developmental delay