has material basis in autosomal dominant disease developmental and epileptic encephalopathy developmental and epileptic encephalopathy 74 DEE74 disease_ontology A developmental and epileptic encephalopathy characterized by onset in the first months of life of refractory seizures and severe global developmental delay with hypotonia, severe motor impairment, roving eye movements, and absent language that has_material_basis_in heterozygous mutation in the GABRG2 gene on chromosome 5q34. MIM:618396 DOID:0112210 early infantile epileptic encephalopathy 74 autosomal dominant inheritance