Cysteine Dioxygenase Type 1 is a 23 kDa 200 amino acid protein which has a role in initiating metabolic pathways as well as altering intracellular cysteine and glutathione levels. Cysteine Dioxygenase Type 1 is known to interact with VHL, MAPK14, SPAG9, CSAD and CTH. Cysteine Dioxygenase Type 1 has been studied in relation to breast cancer, cutaneous t cell lymphoma, hepatoblastoma and hepatitis.