Sulfite Oxidase Deficiency, Isolated, also known as sulfocysteinuria, is related to molybdenum cofactor deficiency, complementation group c and molybdenum cofactor deficiency, complementation group b, and has symptoms including ataxia and seizures. An important gene associated with Sulfite Oxidase Deficiency, Isolated is SUOX (Sulfite Oxidase), and among its related pathways/superpathways are Metabolism and Metabolism of water-soluble vitamins and cofactors. The drug Molybdenum has been mentioned in the context of this disorder. Affiliated tissues include eye and brain, and related phenotypes are seizure and spasticity