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 syndrome characterized by infant or early childhood onset, impaired intellectual development with poor or absent speech, pyramidal signs, microcephaly, short stature, and dysmorphic facial features has_material_basis_in homozygous or compound heterozygous mutation in the BCAS3 gene on chromosome 17q23. (DO)
Synonyms:
exact_synonym:
HEMARS; NEURODEVELOPMENTAL DISORDER WITH SPASTICITY, FACIAL DYSMORPHISM, AND BRAIN ABNORMALITIES