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 familial nephrotic syndrome characterized by early childhood onset of steroid-resistant progressive renal failure with focal segmental glomerulosclerosis that has_material_basis_in homozygous or compound heterozygous mutation in the NUP93 gene on chromosome 16q13. (DO)