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Covalent Insertion of a Mn(Salen) Type Complex in Cross-Linked Protein Crystals: Design of an Enantioselective Artificial Epoxidase

delete2026-05-29
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M
Manel Boukhallat
I
Ismail Benhamed
J
Jade Arnone
S
Stann Van Barren
C
Clara Rinaldi
P
Patrice Catty
C
Caroline Marchi
C
Christine Cavazza *
S
Stéphane Ménage *
DOI:10.1002/chem.71159delete
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Abstract

Abstract

En 中文
Artificial enzymes represent a promising alternative for performing non-natural reactions in biocatalysis. Here, we illustrate the potential of cross-linked enzyme crystals (CLEC) to achieve enantioselective epoxidation through the generation of an artificial enzyme obtained by direct covalent anchoring of a manganese complex as an artificial active site within a protein. Enantiomeric excess (ee) of up to 90% on cis-β−methylstyrene was measured when the covalent binding yield was maximized, thanks to the remarkable behavior of the crystals. The structure of the modified enzyme, NikA, is provided. This work adds to the growing body of examples highlighting the advantages of CLEC in oxidation catalysis.
Keywords:
artificial enzymes
bioconjugation
cross-linked enzyme crystals
directed synthesis
epoxidation
manganese
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Journal

C
Chemistry - A European Journal
IF:
3.7
Papers:
1.1K
Citations:
20

Organization

C
cnrs and cea and univ. grenoble-alpes
Scholars:
10
Papers: 2
Citations: 0
C
cnrs
Scholars:
2.9K
Papers: 1.3K
Citations: 88
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