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Spatial requirement for PAMO for transformation of non-native linear substrate
Phenylacetone monooxygenase is the most stable and thermo-tolerant member of the Baeyer–Villiger monooxygenases family, and therefore it is an ideal candidate for the synthesis of industrially relevant ester or lactone compounds. However, its limited substrate scope has largely limited its industrial applications.
Linear substrates are interesting from an industrial point of view, it is thus necessary to identify the essential spatial requirement for achieving high conversions for non-native linear substrates. Here using molecular dynamics simulations, we compared the conversion of a non-native linear substrate 2-octanone and the native substrate phenylacetone, catalyzed by the WT enzyme and a quadruple variant P253F/G254A/R258M/L443F that exhibits significantly improved activity towards 2-octanone.
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