kbu:Q4V64_28450 K00453 tryptophan 2,3-dioxygenase [EC:1.13.11.11] | (GenBank) tryptophan 2,3-dioxygenase family protein kbu:Q4V64_28455 K01556 kynureninase [EC:3.7.1.3] | (GenBank) kynU; kynureninase kbu:Q4V64_28460 no KO assigned | (GenBank) alpha/beta hydrolase