has material basis in autosomal dominant disease developmental and epileptic encephalopathy 33 DOID:0080463 A developmental and epileptic encephalopathy characterized by onset in the first months of life of seizures and severe global developmental delay with impaired intellectual development and poor or absent speech that has_material_basis_in heterozygous mutation in the EEF1A2 gene on chromosome 20q13. DEE33 MIM:616409 disease_ontology early infantile epileptic encephalopathy 33 developmental and epileptic encephalopathy autosomal dominant inheritance