Developmental and Epileptic Encephalopathy 50, also known as dee50, is related to cad-cdg and early infantile epileptic encephalopathy. An important gene associated with Developmental and Epileptic Encephalopathy 50 is CAD (Carbamoyl-Phosphate Synthetase 2, Aspartate Transcarbamylase, And Dihydroorotase), and among its related pathways/superpathways are Metabolism of nucleotides and Pyrimidine metabolism. Affiliated tissues include bone marrow and brain, and related phenotypes are seizure and failure to thrive