Organizations of the AntDO genes from B. cepacia DBO1, B. fungorum LB400 (accession no. NZ_AAAC01000305 and NZ_AAAC01000308), Acinetobacter sp. strain ADP1 (accession no. AF071556), Pseudomonas sp. strain CA10 (accession no. AB047548), P. aeruginosa PAO1 (accession no. NC_002516), and P. putida P111 (accession no. AY026914). Abbreviations: andAaAbAcAd, AntDO-3C genes; andR, positive regulator of and operon; antABC, AntDO genes; catA, catechol 1,2-DO gene; catB, muconate cycloisomerase I gene; catC, muconolactone δ-isomerase gene; catR, transcriptional regulatory gene for cat operon; benD, benzoate diol dehydrogenase gene; orfAN, putative protein gene; orfM, putative membrane protein gene; pa2511, putative protein gene; tnpA, transposase gene; xylL, benzoate diol dehydrogenase gene. The structural genes for the DOs are illustrated as solid black lines, andR and the putative AntDO regulatory genes are illustrated as shaded lines, and the genes for the cat operon are illustrated as dots.