化工进展 ›› 2021, Vol. 40 ›› Issue (12): 6807-6817.DOI: 10.16085/j.issn.1000-6613.2021-0680

• 生物与医药化工 • 上一篇    下一篇

微生物细胞工厂碳流调控进展

高聪1(), 郭亮1, 胡贵鹏2, 陈修来1, 刘立明1()   

  1. 1.江南大学食品科学与技术国家重点实验室,江苏 无锡 214122
    2.江南大学药学院,江苏 无锡 214122
  • 收稿日期:2021-04-10 修回日期:2021-05-31 出版日期:2021-12-05 发布日期:2021-12-21
  • 通讯作者: 刘立明
  • 作者简介:高聪(1991—),男,助理研究员,研究方向为微生物代谢工程。E-mail:conggao@jiangnan.edu.cn
  • 基金资助:
    国家重点研发计划(2020YFA0908300);国家自然科学基金创新研究群体科学基金(32021005);国家自然科学基金(22008087)

Advances of metabolic flux regulation in microbial cell factories

GAO Cong1(), GUO Liang1, HU Guipeng2, CHEN Xiulai1, LIU Liming1()   

  1. 1.State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, China
    2.School of Pharmaceutical Sciences, Jiangnan University, Wuxi 214122, Jiangsu, China
  • Received:2021-04-10 Revised:2021-05-31 Online:2021-12-05 Published:2021-12-21
  • Contact: LIU Liming

摘要:

随着代谢工程技术的进步,越来越多微生物细胞工厂可用于化学品发酵生产。微生物细胞生产化学品具有生产条件温和、环境友好等优势,是实现化学品绿色可持续生产的重要手段。为了提高微生物细胞工厂的产量、得率和生产强度,传统代谢工程手段主要采用基因过表达或基因敲除方式增大目标代谢路径碳代谢流。然而由于代谢流调控精度不足,易导致细胞生产能力下降。本文主要针对微生物细胞工厂碳流调控中存在的瓶颈问题,从代谢流改造靶点选择、细胞生长与产物合成碳流平衡、副产物路径与产物合成竞争、产物合成效率强化四个角度,系统综述微生物细胞工厂碳代谢流调控的最新进展。并从高精度、仿生学、智能化、多任务、快响应调控工具的设计出发,对未来微生物细胞工厂的发展趋势进行展望。

关键词: 微生物细胞工厂, 系统代谢工程, 合成生物学, 代谢流, 调控策略

Abstract:

With the development of metabolic engineering, many chemicals can be produced by microbial cell factories. Production of chemicals by microbial cell factories has the advantages of mild reaction conditions and environmental friendliness, and is an important way to realize sustainable production. To improve the chemicals titer, yield and productivity in microbial cell factories, traditional metabolic engineering methods mainly depend on gene overexpression or gene knockout methods to increase the metabolic flux towards the target metabolic pathway. However, due to the insufficient accuracy of metabolic flux regulation, it is easy to lead to the decline of cell production capacity. Aiming at solving the bottlenecks during carbon flux regulation in microbial cell factories, this review systematically summarizes the latest progress from four perspectives: target selection of metabolic flux regulation, carbon flux balance between cell growth and chemicals synthesis, competition between by-product pathway and product synthesis, and pathway efficiency enhancement in product synthesis. The future development trend of building microbial cell factory is also prospected from the design of high-accuracy, bionic, intelligent, multi-task and quick-response tools.

Key words: microbial cell factories, systematic metabolic engineering, synthetic biology, metabolic flux, regulatory strategy

中图分类号: 

京ICP备12046843号-2;京公网安备 11010102001994号
版权所有 © 《化工进展》编辑部
地址:北京市东城区青年湖南街13号 邮编:100011
电子信箱:hgjz@cip.com.cn
本系统由北京玛格泰克科技发展有限公司设计开发 技术支持:support@magtech.com.cn