Pseudomonas putida PpGl, which carries the CAM plasmid encoding enzymes involved in the degradation pathway of D-camphor, can utilize D-camphor as a sole carbon source. The enzymes responsible for early steps in D-camphor degradation are 5-exo-hydroxycamphor dehydrogenase (camD gene), cytochrome P-450cam (camC), NADH-putidaredoxin reductase (camA), and putidaredoxin (camB)
two firmly bound zinc atoms per subunit. All three ligands, C40, H62 and C158 to the catalytic zinc atom in the active-site, and all four ligands, C98, C101, C104 and Cll2 to the second zinc atom, are conserved
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gene camD encoding 5-exo-hydroxycamphor dehydrogenase is plasmid born, cotransferable by conjugation, mitomycin curable, and shows a higher segregation rate from cells that are multiplasmid rather than carrying a single plasmid
the genes of the CAM plasmid encoding enzymes involved in the degradation pathway of D-camphor form an operon, camDCAB, and are under negative control by the gene camR located immediately upstream from the camD gene