DO_rare_slim DO_FlyBase_slim has material basis in autosomal dominant disease Dravet syndrome GARD:10430 MIM:607208 A developmental and epileptic encephalopathy characterized by onset of seizures that are usually refractory to treatment in the first year of life after normal early development and impaired psychomoter development starting around the second year of life that has_material_basis_in heterozygous mutation in the SCN1A gene on chromosome 2q24. disease_ontology DEE6 DEE6A DOID:0060171 ORDO:33069 DOID:0080422 developmental and epileptic encephalopathy 6 developmental and epileptic encephalopathy 6A early infantile epileptic encephalopathy 6 severe myoclonic epilepsy of infancy developmental and epileptic encephalopathy autosomal dominant inheritance