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Methods Mol Biol. 2013;987:107-13. doi: 10.1007/978-1-62703-321-3_9.

Expression in Escherichia coli of a cytochrome P450 enzyme with a cobalt protoporphyrin IX prosthetic group.

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1
Life Technologies, San Francisco, CA, USA.

Abstract

Unlike many hemoproteins, the prosthetic heme group of most cytochrome P450 enzymes cannot be extracted and replaced by modified heme groups. Here, we describe a procedure for generating a cytochrome P450 enzyme (CYP119) with cobalt protoporphyrin IX as its prosthetic group. This is achieved by expressing the protein in Escherichia coli in iron-limited medium and adding cobalt to the medium at the moment that inducible protein expression is initiated.

PMID:
23475671
DOI:
10.1007/978-1-62703-321-3_9
[Indexed for MEDLINE]
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