Developmental and Epileptic Encephalopathy 91, also known as epileptic encephalopathy, infantile or early childhood, 1, is related to flying phobia. An important gene associated with Developmental and Epileptic Encephalopathy 91 is PPP3CA (Protein Phosphatase 3 Catalytic Subunit Alpha), and among its related pathways/superpathways are Calmodulin induced events and Serotonin and anxiety. Affiliated tissues include brain, and related phenotypes are intellectual disability and seizure