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 cerebellar ataxia that is characterized by slowly progressive ataxia, early-onset tremor and dyskinesia, and has_material_basis_in heterozygous mutation in the FGF14 gene on chromosome 13q33. Some patients have heterozygous deletions of chromosome 13q33 affecting the FGF14 and ITGBL1 genes, which may thus be considered a contiguous gene deletion syndrome. (DO)