pathway for camphor degradation follows the oxidative ring opening sequence from (+)-camphor to 6-hydroxycamphor, 6-oxocamphor, alpha-campholonic acid, and 2-hydroxy-alpha-campholonic acid. The catabolism of camphor via 1,2-campholide is a minor degradative pathway
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the genes responsible for early steps of D-camphor degradation, i.e. 5-exo-hydroxycamphor dehydrogenase, camD gene, cytochrome P-450cam, camC, NADH-putidaredoxin reductase camA, and putidaredoxin camB form an operon, camDCAB, and are under negative control by the gene camR located immediately upstream from the camD gene
functional expression in Escherichia coli of tricistronic constructs consisting of P450cam and the auxiliary proteins, Pd and PdR. Transformed bacterial whole cells efficiently oxidize (1R)-(+)-camphor to 6-exo-hydroxycamphor and interestingly limonene to (-)-perillyl alcohol. These bioengineered Escherichia coli cells possess a heterologous selfsufficient P450 catalytic system