bban:J4G43_023650 K00453 tryptophan 2,3-dioxygenase [EC:1.13.11.11] | (GenBank) kynA; tryptophan 2,3-dioxygenase bban:J4G43_023655 K01556 kynureninase [EC:3.7.1.3] | (GenBank) kynU; kynureninase bban:J4G43_023645 K01432 arylformamidase [EC:3.5.1.9] | (GenBank) alpha/beta fold hydrolase