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 multiple mitochondrial dysfunctions syndrome that is characterized by weakness, respiratory failure, lack of neurologic development, lactic acidosis, and early death, and has_material_basis_in autosomal recessive inheritance of homozygous or compound heterozygous mutation in the NFU1 iron-sulfur cluster scaffold gene on chromosome 2p13. (DO)