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Updated: Jun 17, 2026
07:59
A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products
Published on: October 4, 2019
Investigating Terpene Synthase-Catalyzed Reactions with Ketone- and Alkene-Modified Substrate Analogs
Ruilong Li1,2,3, Minghui Xie1,4, Rongxiang Yin1,5
1Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin 300308, China.
Organic Letters
|June 15, 2026
Summary
Altering terpene synthases' substrates with ketones or alkenes significantly changed their reactions. This research expanded the chemical diversity of terpenoids, yielding novel compounds with potential anti-cancer properties.
Area of Science:
- Biochemistry
- Organic Chemistry
- Enzymology
Background:
- Terpene synthases (TPSs) are enzymes with broad catalytic abilities.
- Understanding how TPSs process modified substrates, especially those with heteroatoms, is crucial.
- The influence of carbonyl groups on TPS activity is largely unexplored.
Purpose of the Study:
- To investigate the impact of ketone incorporation into farnesyl pyrophosphate (FPP) analogs on TPS-catalyzed reactions.
- To compare the effects of ketone-modified substrates with structurally similar alkene analogs.
- To explore the potential of substrate engineering for discovering new terpenoid compounds and bioactivities.
Main Methods:
- Design and synthesis of three ketone-containing FPP analogs and related alkene analogs.
- Evaluation of substrate acceptance and product formation using six distinct sesquiterpene synthases.
- Structural characterization of novel terpenoid products using analytical techniques.
Main Results:
- Ketone substitution on FPP analogs caused significant, position-dependent alterations in TPS activity, often inhibiting standard cyclization pathways.
- Alkene-modified substrates were generally better tolerated, leading to a wider array of cyclized products.
- Over 20 new terpenoid compounds were synthesized and characterized through various enzyme-substrate combinations.
- Several newly synthesized terpenoids demonstrated strong antiproliferative effects on human cancer cell lines with minimal toxicity to normal cells.
Conclusions:
- Substrate engineering, particularly the strategic incorporation of carbonyl groups, can effectively modulate TPS catalytic outcomes.
- This approach provides a powerful strategy for expanding the chemical diversity of terpenoids.
- The identified novel terpenoids represent promising candidates for further development as anti-cancer therapeutics.
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