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 hereditary spastic paraplegia that has_material_basis_in autosomal recessive homozygous or compound heterozygous mutation in the ALDH18A1 gene on chromosome 10q24. (DO)
ClinVar Annotator: match by term: Autosomal recessive complex spastic paraplegia type 9B | ClinVar Annotator: match by term: Spastic paraplegia 9b, autosomal recessive