>sp|A1VRP1|T23O_POLNA Tryptophan 2,3-dioxygenase OS=Polaromonas naphthalenivorans GN=kynA MNDNLKPADIVREEKAQLDFSRAMSYGDYLHLDAILGAQQPLSPAHDEMLFIIQHQTSEL WMKLMLHELRAAIANVAQDELGSAFKKLARVSKIMEQLVHAWDVLATMTPPEYSAIRPYL ASSSGFQSAQYRCIEFALGNKNAAMLKPHAHRPDLLALVTAAFEAPSLYDEALRLLARRG LSVPASHTERDWTQGYVENDAVESAWLTVYRDPKQYWDLYQLGEELTDLEDAFRLWRFRH VTTVERVIGFKRGTGGTGGVSYLRKMLDVVLFPEIWKLRTDL