动物色素桑托马丁的生长合微生物生物合成
Leah B Bushin1, Tobias B Alter2,3, María V G Alván-Vargas2
1Center for Marine Biotechnology and Biomedicine, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, USA.
Nature biotechnology
|November 3, 2025
概括
这项研究引入了一种新的生长合生物合成策略,用于在细菌中产生复杂的化合物,如xanthommatin. 通过通过一碳 (C1) 分量反循环将化合物生产与细菌生长联系起来,它显著提高了产量并加速了工程工作.
科学领域:
- 合成生物学 合成生物学
- 代谢工程是代谢工程.
- 微生物生物技术 微生物生物技术
背景情况:
- 在细菌中设计异质自然产物通路往往会导致初始生产水平较低,需要进行广泛的菌株优化.
- 在微生物系统中生产复杂的动物全色素桑托马丁 (xanthommatin) 是一个挑战.
- 目前微生物生物合成的方法需要大量的资源和代的优化步骤.
研究的目的:
- 开发一种广泛适用的,插即用的生物合成策略,将细菌生长与天然产品生产相结合.
- 为了启用和增强微生物生产的Xanthommatin.
- 建立一个通用的方法,加速工程自然产品在细菌中的生物合成.
主要方法:
- 实施了增长合生物合成策略,使用由一碳 (C1) 分量驱动的反循环.
- 在 Pseudomonas putida 的 5,10-methylenetetrahydrofolate auxotroph 中进行了工程化圣托马丁生物合成.
- 利用适应性实验室进化来简化和扩大生物生产.
主要成果:
- 通过通过形式释放将色素生产与细菌生长相合,成功启用了托马丁生物合成.
- 从葡萄糖中证明了克兰尺度生物生产的xanthommatin.
- 验证了C1恢复作为增强微生物天然产品生物合成的有效策略.
结论:
- 开发的与增长相结合的战略显著提高了生物生产水平,并减少了对广泛菌株优化的需求.
- 这种plug-and-play方法广泛适用于在细菌中设计各种自然产品路径.
- C1恢复是加速微生物细胞工厂发展的通用和有效方法.
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