acra:BSY15_478 K00453 tryptophan 2,3-dioxygenase [EC:1.13.11.11] | (GenBank) kynA; tryptophan 2,3-dioxygenase acra:BSY15_476 K07130 arylformamidase [EC:3.5.1.9] | (GenBank) kynB; arylformamidase acra:BSY15_477 K01556 kynureninase [EC:3.7.1.3] | (GenBank) kynU; kynureninase