Zhe Chen, Wenling Yuan, Fengli Li, AWei Che, Zhenhua Guan, Zhengxi Hu, Yuan Zhou, Juan V. Alegre-Requena, Junjun Liu, Ying Ye* and Yonghui Zhang*,
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Scaffold-Adaptive P450 Enzymes Balance Substrate Promiscuity with Catalytic Specificity in Brassicicene Biosynthesis
We investigated the functional plasticity of two P450 enzymes, AbnK and AbnG, in the brassicicene biosynthetic pathway. Through in vivo heterologous expression, feeding assays, and in vitro reactions, we show that these enzymes regio- and stereoselectively transform both 5–8–5 and 5–9–5 terpenoid scaffolds in different ways, supported by computational simulations. AbnK also bridges a missing step in brassicicene A biosynthesis. Our findings demonstrate how controlled promiscuity underpins structural diversity, informing strategies to expand chemoenzymatic synthesis.
期刊介绍:
Organic Letters invites original reports of fundamental research in all branches of the theory and practice of organic, physical organic, organometallic,medicinal, and bioorganic chemistry. Organic Letters provides rapid disclosure of the key elements of significant studies that are of interest to a large portion of the organic community. In selecting manuscripts for publication, the Editors place emphasis on the originality, quality and wide interest of the work. Authors should provide enough background information to place the new disclosure in context and to justify the rapid publication format. Back-to-back Letters will be considered. Full details should be reserved for an Article, which should appear in due course.