Streamlined synthesis of β-elemene using a spatially organized multi-enzyme machinery
Mijun Li1,2, Chaoyue Nie1, Xiangxiang Zuo2
1Key Laboratory of Organosilicon Chemistry and Materials Technology, Ministry of Education; College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, PR China.
Communications Chemistry
|July 21, 2026
Summary
Researchers developed a novel hexa-enzyme cascade system for efficient in vitro synthesis of beta-elemene. This bio-orthogonal assembly significantly boosts beta-elemene production and stability for sustainable terpenoid synthesis.
Area of Science:
- Biocatalysis
- Metabolic Engineering
- Synthetic Biology
Background:
- Beta-elemene, a valuable pharmaceutical sesquiterpene, faces production challenges due to inefficient plant extraction and chemical synthesis.
- Existing methods for beta-elemene biosynthesis are limited in productivity and scalability.
Purpose of the Study:
- To develop an efficient in vitro synthesis method for beta-elemene using a hexa-enzyme cascade system.
- To improve biosynthetic productivity by organizing enzymes through bio-orthogonal protein pairs.
Main Methods:
- Construction of orderly cross-linked hexa-enzyme complexes using bio-orthogonal protein pairs (Tag/Catcher, RIAD/RIDD2, K/Q-Tag).
- Spontaneous one-step co-purification and immobilization of six enzymes for beta-elemene synthesis.
- Characterization of spatial co-localization and operational stability of the enzyme complexes.
Main Results:
- Achieved a beta-elemene titer of 160.08 mg/L, a significant increase from 27.54 mg/L produced by free enzymes.
- Demonstrated enhanced operational stability, retaining approximately 70% activity over six reuse cycles.
- Confirmed spatial co-localization of enzymes within the cross-linked complexes.
Conclusions:
- Bio-orthogonal multi-enzyme assembly engineering enables efficient in vitro biosynthesis of beta-elemene.
- The developed strategy offers a sustainable approach for engineered synthesis of terpenoid compounds.
- This method provides a robust and reusable biocatalytic system for pharmaceutical compound production.
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