btha:DR62_1503 K03719 Lrp/AsnC family transcriptional regulator, leucine-responsive regulatory protein | (GenBank) AsnC family transcriptional regulator btha:DR62_1907 K00453 tryptophan 2,3-dioxygenase [EC:1.13.11.11] | (GenBank) tryptophan 2,3-dioxygenase btha:DR62_1908 K01556 kynureninase [EC:3.7.1.3] | (GenBank) kynureninase