在可编程模式中设计了大肠杆菌联盟功能,用于多种酶生物合成
Wenxue Zhang1, Hao Dong1,2, Xiaoli Wang1
1State Key Laboratory of Bioreactor Engineering, School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China.
ACS applied materials & interfaces
|September 22, 2023
概括
这项研究引入了微生物联盟的可编程细胞组装方法,提高了d-phenyllactic acid (d-PLA) 生产等复杂合成途径的生物催化效率.
科学领域:
- 合成生物学 合成生物学
- 生物技术是生物技术.
- 代谢工程是代谢工程.
背景情况:
- 协调复杂合成途径的微生物联盟对于生物制造至关重要.
- 当前的方法在优化催化效率和酶排列方面面临着挑战.
研究的目的:
- 开发一种可编程的方法,使用亲和群体的表面显示来组装活细胞.
- 通过合理安排细胞组合和酶来优化全细胞催化.
- 通过工程微生物联盟来增强d-phenyllactic acid (d-PLA) 的生产.
主要方法:
- 用于用于可编程细胞组件的亲和群的表面显示.
- 合理安排了四种d-PLA合成的酶,考虑到基质道和蛋白质表达.
- 工程微生物联盟用于全细胞催化.
主要成果:
- 与生物膜和全细胞催化剂相比,实现了1.31倍和2.55倍更高的d-PLA生产效率.
- 在联合固定速度限制酶之间展示了基质道,提高了3.67倍的催化效率.
- 从140毫米的甲中获得102.85 ± 3.39毫米的最大d-PLA产量.
结论:
- 开发的细胞组装方法使协调的微生物联盟能够实现高效的多酶生物合成.
- 这种方法为优化工程微生物系统中的生物催化剂提供了一个新的策略.
- 该研究通过提高催化效率和产品产量来推动生物制造领域的发展.
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