slx:SLAV_20360 K00453 tryptophan 2,3-dioxygenase [EC:1.13.11.11] | (GenBank) kynA1; Tryptophan 2,3-dioxygenase slx:SLAV_20365 K01556 kynureninase [EC:3.7.1.3] | (GenBank) kynU; Kynureninase slx:SLAV_20370 no KO assigned | (GenBank) Alpha/beta hydrolase family protein