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.
An autosomal dominant neurodevelopmental disorder frequently characterized by impaired intellectual development, speech delay, motor delay, behavioral problems, and epilepsy. Caused by heterozygous mutation in the CHD5 gene on chromosome 1p36.