| Phenotype details |
plasma glutamine normal; cerebrospinal fluid glutamine normal; cerebrospinal fluid neurotransmitters normal; 22m-epilepsy, myoclonic, generalized tonic-clonic seizure, absence; epilepsy type generalized; developmental and epileptic encephalopathy; EEG frequent myoclonic seizures, generalized spike and wave; seizures 50-100 per day; treatment response refractory; global developmental delay |