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- W4387448183 abstract "The Wacker–Tsuji oxidation is an important aerobic oxidation process to synthesize ethanal from ethene and methyl ketones from 1-alkenes. Current challenges in aerobic alkene oxidation include selective carbonyl product formation beyond methyl ketones. This includes the regioselective oxidation of the terminal carbon atom of 1-alkenes, the regioselective ketone formation with internal alkenes as well as the enantioselective alkene to carbonyl oxidation. Recently, the potential of high-valent metal-oxo species for direct alkene to carbonyl oxidation was explored as carbonyl product formation is frequently reported as a side reaction of alkene epoxidation by cytochrome P450s. It was shown that such promiscuous P450s can be engineered via directed evolution to perform alkene to carbonyl oxidation reactions with high activity and selectivity. Here, we report a protocol to convert promiscuous P450s into efficient and selective enzymes for Wacker-type alkene oxidation. One round of directed evolution is described in detail, which includes the generation and handling of site-saturation libraries, recombinant protein expression, library screening in a 96-well plate format and the rescreening of variants with beneficial mutations. These protocols might be useful to engineer various P450s for selective alkene to carbonyl oxidation, and to engineer enzymes in general." @default.
- W4387448183 created "2023-10-10" @default.
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- W4387448183 date "2023-01-01" @default.
- W4387448183 modified "2023-10-18" @default.
- W4387448183 title "Engineering cytochrome P450s for selective alkene to carbonyl oxidation" @default.
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- W4387448183 doi "https://doi.org/10.1016/bs.mie.2023.09.005" @default.
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