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 carbohydrate metabolic disorder characterized by elevated fructose levels in the blood and urine following ingestion of fructose and related sugars that has_material_basis_in homozygous or compound heterozygous mutation in KHK on chromosome 2p23.3. (DO)
CTD Direct Evidence: marker/mechanism ClinVar Annotator: match by term: Essential fructosuria | ClinVar Annotator: match by term: KETOHEXOKINASE DEFICIENCY