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 is usually characterized by rapidly progressive and severe spastic paraplegia and has_material_basis_in mutation in the NIPA1 gene on chromosome 15q11.2. (DO)
CTD Direct Evidence: marker/mechanism ClinVar Annotator: match by term: Hereditary spastic paraplegia 6 | ClinVar Annotator: match by term: NIPA1-related condition