Enhancing the Peroxygenase Activity of a Cofactor‐Independent Peroxyzyme by Directed Evolution Enabling Gram‐Scale Epoxide Synthesis
作者:Marie‐Cathérine Sigmund、Guangcai Xu、Eleonora Grandi、Gerrit J. Poelarends
DOI:10.1002/chem.202201651
日期:2022.10.21
Directed evolution of the cofactor-independent peroxyzyme 4-OT yielded an efficient biocatalyst (fused 4-OT P8a) for the enantioselective epoxidation of α,β-unsaturatedaldehydes using hydrogen peroxide as an oxidant. The optimized peroxyzyme enabled the milligram- and gram-scale preparation of the desired α,β-epoxy-aldehydes with excellent conversions and outstanding enantiopurity, providing an attractive
Biocatalytic Cascade Synthesis of Enantioenriched Epoxides and Triols from Biomass‐Derived Synthons Driven by Specifically Designed Enzymes
作者:Eleonora Grandi、Michele Crotti、Marie-Cathérine Sigmund、Guangcai Xu、Pieter G. Tepper、Gerrit J. Poelarends
DOI:10.1002/chem.202300697
日期:——
application of multi-step enzymatic cascades to synthesize enantioenriched epoxides and vicinal aromatic triols from simple biomass-derived starting materials in one pot. These artificial metabolic pathways involve a tailor-made aldolase, a highly evolved cofactor-independent peroxyzyme, and when needed a specifically chosen epoxide hydrolase. These attractive biocatalyticcascades can be performed under environmentally