sdon:M9980_08720 K00453 tryptophan 2,3-dioxygenase [EC:1.13.11.11] | (GenBank) tryptophan 2,3-dioxygenase family protein sdon:M9980_08715 K01556 kynureninase [EC:3.7.1.3] | (GenBank) kynU; kynureninase sdon:M9980_06660 no KO assigned | (GenBank) alpha/beta hydrolase