Tryptophan 2,3-dioxygenase (EC 1.13.11.11; UniProt P48775; also known as TDO, TO, TRPO, Tryptamin 2,3-dioxygenase, Tryptophan oxygenase, Tryptophan pyrrolase, Tryptophanase) is encoded by the TDO2 (also known as TDO) gene (Gene ID 6999) in human. TDO2 is a cytosolic heme-containing enzyme that...