| Namespace | disease_ontology | Obsolete | false |
| description | An amino acid metabolic disorder characterized by impaired tryptophan metabolism resulting in high urinary excretion of kynurenine, xanthurenic acid and 3-hydroxykynurenine that has_material_basis_in homozygous or compound heterozygous mutation in the KYNU gene on chromosome 2q22.2. |
