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Updated: May 16, 2025

A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products
Published on: October 4, 2019
Scaffold-Adaptive P450 Enzymes Balance Substrate Promiscuity with Catalytic Specificity in Brassicicene Biosynthesis
Zhe Chen1, Wenling Yuan1, Fengli Li1
1Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, P. R. China.
This study explores the flexibility of two enzymes, AbnK and AbnG, in creating brassicicenes. Their actions on different molecular structures reveal insights into natural product diversity and chemoenzymatic synthesis.
Area of Science:
- Biochemistry
- Organic Chemistry
- Synthetic Biology
Background:
- The brassicicene biosynthetic pathway produces complex natural products.
- Cytochrome P450 enzymes play crucial roles in modifying molecular structures.
Purpose of the Study:
- To investigate the functional plasticity of AbnK and AbnG enzymes.
- To understand their roles in the brassicicene biosynthetic pathway.
- To explore strategies for expanding chemoenzymatic synthesis.
Main Methods:
- In vivo heterologous expression of AbnK and AbnG.
- Feeding assays with terpenoid scaffolds.
- In vitro enzymatic reactions.
- Computational simulations.
Main Results:
- AbnK and AbnG exhibit regio- and stereoselective transformation of 5-8-5 and 5-9-5 terpenoid scaffolds.
- AbnK catalyzes a previously unidentified step in brassicicene A biosynthesis.
- Enzyme promiscuity contributes to structural diversity in brassicicenes.
Conclusions:
- Controlled enzyme promiscuity is a key driver of structural diversity in natural products.
- Findings inform the development of chemoenzymatic strategies for synthesizing brassicicenes and related compounds.
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