在Saccharomyces cerevisiae中,De Novo生物合成了一种多基因类型的金色化物前体Dammaradienol
Yuhong Gan1, Zhengping Li1, Baolian Fan1
1Guangdong Engineering Research Center of Biosynthesis and Metabolism of Effective Components of Chinese Medicine, International Institute for Translational Chinese Medicine, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
ACS synthetic biology
|November 20, 2024
概括
研究人员对酵母进行了改造,产生了dammaradienol,这是强大的多聚类型人参酸的前体. 这种代谢工程的突破实现了高产量,为成本效益高的价值化合物的生产铺平了道路.
科学领域:
- 代谢工程是代谢工程.
- 合成生物学 合成生物学
- 自然产品生物合成 自然产品生物合成
背景情况:
- 达马兰类型的金赛诺化物具有显著的药理学活性.
- 聚烯类型的金赛诺化物表现出增强的生物效应,但由于自然丰度低和复杂的转化过程,它们的生产具有挑战性.
- 目前获得聚类型人参酸的方法涉及昂贵的加工步骤.
研究的目的:
- 为了识别和描述来自 *Artemisia argyi* 的damaradienol合成酶.
- 建立一个酵母异质生物合成平台,用于聚类型的金色化物前体,dammaradienol.
- 通过代谢工程优化dammaradienol的生产,以开发潜在的细胞工厂.
主要方法:
- 鉴定和克隆damaradienol合成酶 (AarOSC20433) 来自 *Artemisia argyi*.
- 构建一个高产的素酵母底盘菌株.
- 代谢工程策略包括烯供应优化,基因拷贝数量增加和酶理性设计.
- 补充和批量发酵用于damaradienol生产.
主要成果:
- 成功识别了达马二醇合成酶, AarOSC20433.
- 在酵母中实现了dammaradienol的异质生物合成.
- 优化的代谢途径和发酵条件导致达马拉迪诺位为1.037g/L.
- 证明了使用工程酵母用于damaradienol生产的可行性.
结论:
- 这项研究成功地建立了一个酵母平台,用于使用工程化damaradienol合成酶进行damaradienol生物合成.
- 达马拉醇的高位为开发聚类型的金色化细胞工厂提供了坚实的基础.
- 这项工作提供了一个有前途的战略,用于成本效益和可持续生产有价值的多聚类型人参化物.
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