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 non-syndromic X-linked intellectual disability characterized by moderate to profound intellectual disability with variable additional features that has_material_basis_in hemizygous mutation in ARX on chromosome Xp21.3. (DO)
CTD Direct Evidence: marker/mechanism ClinVar Annotator: match by term: INTELLECTUAL DEVELOPMENTAL DISORDER, X-LINKED 29 | ClinVar Annotator: match by term: MENTAL RETARDATION, X-LINKED 29 | ClinVar Annotator: match by term: MENTAL RETARDATION, X-LINKED 87 | ClinVar Annotator: match by term: Mental retardation, X-linked 52