kal:KALB_3351 K00453 tryptophan 2,3-dioxygenase [EC:1.13.11.11] | (GenBank) tryptophan 23-dioxygenase kal:KALB_3352 K01556 kynureninase [EC:3.7.1.3] | (GenBank) Kynureninase kal:KALB_7821 K14250 cyclase | (GenBank) hypothetical protein