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Enzymatic Synthesis of Epoxidized Metabolites of Docosahexaenoic, Eicosapentaenoic, and Arachidonic Acids
Published on: June 28, 2019
Endoperoxidases in biosynthesis of endoperoxide bonds
Shaoshan Zhang1, Bin He2, Axiang Qu-Bie2
1Tibetan Plateau Ethnic Medicinal Resources Protection and Utilization Key Laboratory of National Ethnic Affairs Commission of the People's Republic of China, Chengdu 610225, China; Sichuan Provincial Qiang-Yi Medicinal Resources Protection and Utilization Technology and Engineering Laboratory, Chengdu 610225, China; Institute of Qinghai-Tibetan Plateau, Southwest Minzu University, Chengdu, Sichuan 610225, China.
Plants synthesize endoperoxides, crucial for drug discovery, using light or enzymes. Iron-dependent oxygenases likely mediate these plant-derived endoperoxide biosynthesis pathways.
Area of Science:
- Biochemistry
- Natural Product Chemistry
- Drug Discovery
Background:
- Endoperoxides are vital scaffolds for novel drug discovery due to their unique biological activities.
- The biosynthetic pathways of endoperoxide bonds, particularly in plants, remain largely uncharacterized.
- Understanding these mechanisms is key to unlocking the full potential of plant-derived endoperoxides.
Purpose of the Study:
- To review the current knowledge on the biosynthesis of endoperoxides in nature.
- To focus on plant-derived endoperoxides and their synthetic routes.
- To identify key enzymes and pathways involved in plant endoperoxide formation.
Main Methods:
- Literature review of biosynthesis studies on natural endoperoxides.
- Focus on photocatalytic and enzymatic synthesis in plants.
- Identification of enzyme families, such as iron-dependent oxygenases (e.g., α-ketoglutarate-dependent dioxygenases), involved in endoperoxide formation.
Main Results:
- Plants utilize two primary systems for endoperoxide bond synthesis: photocatalysis and enzyme catalysis.
- Iron-dependent oxygenases, including the α-ketoglutarate (α-KG)-dependent dioxygenase (2-ODD) family, are implicated in enzymatic endoperoxide synthesis in plants.
- Nardostachys jatamansi is highlighted as a promising source for discovering plant-derived endoperoxidases.
Conclusions:
- Plant endoperoxide biosynthesis involves both light-driven and enzyme-catalyzed reactions.
- α-KG-dependent dioxygenases are likely key players in the enzymatic synthesis of plant endoperoxides.
- Further research into plants like Nardostachys jatamansi could yield new endoperoxide-based therapeutics.
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