FIG. 5.

Organization of the clusters of genes possibly involved in anaerobic phenol metabolism in T. aromatica. Phenol-induced proteins F1 to F5 and the corresponding number of amino acids (aa) are shown below the ORFs. The reactions catalyzed by PEP synthase and 3-octaprenyl-4-hydroxybenzoate carboxy lyase (isoenzymes UbiD and UbiX) are shown below; these enzymes show similarity to some of the proteins possibly involved in phenol metabolism. Like colors (black and grey) stand for genes and gene products with similarities. Black arrows indicate the direction of transcription. The coding regions (sizes in base pairs) are indicated, as well as the restriction sites of various enzymes.