RGD uses the Human Disease Ontology (DO, https://disease-ontology.org/) for disease curation across species. RGD automatically downloads each new release of the ontology on a monthly basis. Some additional terms which are required for RGD's curation purposes but are not currently covered in the official version of DO have been added. As corresponding terms are added to DO, these custom terms are retired and the DO terms substituted in existing annotations and subsequently used for curation.
A developmental and epileptic encephalopathy characterized by onset in the first weeks or months of life of refractory seizures, profoundly impaired intellectual development, absent speech, spastic quadriplegia, and dyskinetic movements that has_material_basis_in homozygous or compound heterozygous mutation in the PIGP gene on chromosome 21q22. (DO)
ClinVar Annotator: match by term: Developmental and epileptic encephalopathy, 55 | ClinVar Annotator: match by term: Early infantile epileptic encephalopathy 55