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.
Term:
INTELLECTUAL DEVELOPMENTAL DISORDER, X-LINKED, SYNDROMIC, HACKMANN-DI DONATO TYPE
An X-linked recessive phenotype characterized by global developmental delay with hypotonia, delayed speech, and mildly delayed walking associated with somatic marfanoid features, including tall stature, long fingers, and mildly dysmorphic facies.
ClinVar Annotator: match by term: Intellectual developmental disorder, X-linked, syndromic, Hackmann-Di Donato type | ClinVar Annotator: match by term: MENTAL RETARDATION, X-LINKED, WITH MARFANOID HABITUS, 2