数字农科院2.0

Building a highly efficient Streptomyces super-chassis for secondary metabolite production by reprogramming naturally-evolved multifaceted shifts

文献类型： 外文期刊

作者： Qiu S.;Yang B.;Li Z.;Li S.;Yan H.;Xin Z.;Liu J.;Zhao X.;Zhang L.;Xiang W.;Wang W.

作者机构：

关键词： Ethanol-induced orthogonal amplification system (EOAS);Multiplexed targets;Secondary metabolite;Streptomyces super-chassis

期刊名称： Metabolic Engineering

ISSN： 1096-7176

年卷期： 2024 年 81 卷

页码：

收录情况： SCIE（2024版） ; ; EI（2024版）

摘要： Streptomyces has an extensive array of bioactive secondary metabolites (SMs). Nevertheless, devising a framework for the heterologous production of these SMs remains challenging. We here reprogrammed a versatile plug-and-play Streptomyces super-chassis and established a universal pipeline for production of diverse SMs via understanding of the inherent pleiotropic effects of ethanol shock on jadomycin production in Streptomyces venezuelae. We initially identified and characterized a set of multiplex targets (afsQ1, bldD, bldA, and miaA) that contribute to SM (jadomycin) production when subjected to ethanol shock. Subsequently, we developed an ethanol-induced orthogonal amplification system (EOAS), enabling dynamic and precise control over targets. Ultimately, we integrated these multiplex targets into functional units governed by the EOAS, generating a universal and plug-and-play Streptomyces super-chassis. In addition to achieving the unprecedented titer and yield of jadomycin B, we also evidenced the potential of this super-chassis for production of diverse heterologous SMs, including antibiotic oxytetracycline, anticancer drug doxorubicins, agricultural herbicide thaxtomin A, and plant growth regulator guvermectin, all with the yields of >10 mg/g glucose in a simple mineral medium. Given that the production of SMs all required complexed medium and the cognate yields were usually much lower, our achievement of using a universal super-chassis and engineering pipeline in a simple mineral medium is promising for convenient heterologous production of SMs. © 2023 International Metabolic Engineering Society

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