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Updated: Jun 30, 2026
08:25
Development of Heterogeneous Enantioselective Catalysts using Chiral Metal-Organic Frameworks (MOFs)
Published on: January 17, 2020
Regio- and enantioselective oxidation by CYP108N12: substrate scope and specificity
Julia B Buczynski1, Peter D Giang1, Luke R Churchman1
1School of Chemistry and Molecular Biosciences, University of Queensland, Brisbane 4072, Australia. j.devoss@uq.edu.au.
Organic & Biomolecular Chemistry
|June 29, 2026
Summary
This study engineered a bacterial enzyme, CYP108N12, and its redox partner, cymredoxin, for efficient biocatalysis. The recombinant system selectively hydroxylates diverse compounds, showing potential for green chemical synthesis.
Area of Science:
- Biocatalysis and enzyme engineering
- Chemical synthesis and green chemistry
Background:
- Growing demand for efficient, safe, and economical catalytic processes.
- Cytochromes P450 are selective enzymes for C-H bond hydroxylation but require redox partners and expensive cofactors.
- CYP108N12 initiates p-cymene biodegradation via benzylic hydroxylation.
Purpose of the Study:
- To develop an efficient biocatalytic system using CYP108N12 and its redox partner, cymredoxin.
- To explore the substrate scope and selectivity of the engineered enzyme system for industrial applications.
Main Methods:
- Creation of a bicistronic construct of CYP108N12 and cymredoxin for expression in Escherichia coli.
- In vivo catalytic turnovers using the recombinant system.
- Analysis of substrate scope, regio-, chemo-, and enantioselectivity.
Main Results:
- The recombinant CYP108N12 system efficiently and selectively oxidized monoterpenes and 1,4-disubstituted benzenes.
- Enantioselective monohydroxylation of para-substituted ethyl and propyl benzenes was achieved.
- Hydroxylation of 1-bromo-4-isopropylbenzene yielded a diol and two singly hydroxylated products.
Conclusions:
- The recombinant CYP108N12 system is a versatile and selective monooxygenase.
- Ease of production, broad substrate range, and high enantioselectivity make it attractive for biotechnological and chemical catalysis.
- Potential for green and sustainable chemical synthesis.
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