Enzyme-substrate complementarity governs access to a cationic reaction manifold in the P450(BM3)-catalysed oxidation of cyclopropyl fatty acids

Max J Cryle, Patricia Y Hayes, James J De Voss

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Abstract

The products of cytochrome P450(BM3)-catalysed oxidation of cyclopropyl-containing dodecanoic acids are consistent with the presence of a cationic reaction intermediate, which results in efficient dehydrogenation of the rearranged probes by the enzyme. These results highlight the importance of enzyme-substrate complementarity, with a cationic intermediate occurring only when the probes used begin to diverge from ideal substrates for this enzyme. This also aids in reconciling literature reports supporting the presence of cationic intermediates with certain cytochrome P450 enzyme/substrate pairs.
Original languageEnglish
Pages (from-to)15994 - 15999
Number of pages6
JournalChemistry - A European Journal
Volume18
Issue number50
DOIs
Publication statusPublished - 2012
Externally publishedYes

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