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  • Title: Tricistronic overexpression of cytochrome P450cam, putidaredoxin, and putidaredoxin reductase provides a useful cell-based catalytic system.
    Author: Kim D, Ortiz de Montellano PR.
    Journal: Biotechnol Lett; 2009 Sep; 31(9):1427-31. PubMed ID: 19458919.
    Abstract:
    The catalytic turnover of cytochrome P450( cam ) from Pseudomonas putida requires two auxiliary reduction partners, putidaredoxin (Pd) and putidaredoxin reductase (PdR). We report the functional expression in Escherichia coli of tricistronic constructs consisting of P450( cam ) encoded by the first cistron and the auxiliary proteins, Pd and PdR by the second and the third. Transformed bacterial whole cells efficiently oxidized (1R)-(+)-camphor to 5-exo-hydroxycamphor and, interestingly, limonene to (-)-perillyl alcohol. These bioengineered E. coli cells possess a heterologous self-sufficient P450 catalytic system that may have advantages in terms of low cost and high yield for the production of fine chemicals.
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