生物技术通报 ›› 2021, Vol. 37 ›› Issue (3): 175-184.doi: 10.13560/j.cnki.biotech.bull.1985.2020-0779

• 综述与专论 • 上一篇    下一篇

大肠杆菌高效合成L-苯甘氨酸的研究进展

陶宇丞(), 吕旭冰, 程圣杰, 王彦雯, 王文峰, 焦朕, 王鹏超()   

  1. 东北林业大学生命科学学院,哈尔滨 150000
  • 收稿日期:2020-06-25 出版日期:2021-03-26 发布日期:2021-04-02
  • 作者简介:陶宇丞,男,研究方向:合成生物学;E-mail:langliao708526@163.com
  • 基金资助:
    国家自然科学基金项目(31900064)

Research Progress on the Efficient Synthesis of Phenylglycine by Escherichia coli

TAO Yu-cheng(), LV Xu-bing, CHENG Sheng-jie, WANG Yan-wen, WANG Wen-feng, JIAO Zhen, WANG Peng-chao()   

  1. School of Life Science,Northeast Forestry University,Harbin 150000
  • Received:2020-06-25 Published:2021-03-26 Online:2021-04-02

摘要:

自然界存在着多种氨基酸,除用于蛋白质合成的20种外,大量用于合成具有生物活性的物质,广泛应用于食品、医药等多个领域。其中,非天然芳香族氨基酸L-苯甘氨酸作为一种重要的组成单元广泛的应用于盘尼西林、维吉霉素S、原始霉素I等β-内酰胺类抗生素的生物合成当中。目前L-苯甘氨酸主要通过化学法合成,但该方法合成收率低、污染大,且不易得到单一手性的化合物。由于生物合成L-苯甘氨酸具有反应条件温和、产物立体选择性好的优势,因此受到了广泛的关注。通过对L-苯甘氨酸两条生物合成途径的解析,合成所需相关酶的筛选及辅因子平衡再生等,逐步形成了以苯乙酮酸、扁桃酸和L-苯丙氨酸为底物的合成线路。主要对L-苯甘氨酸的生物合成途径及生物合成策略展开综述,为研究者提供优化方向,以期为高效工业化生物合成L-苯甘氨酸提供理论参考。

关键词: L-苯甘氨酸, 生物合成, 合成策略

Abstract:

There are many kinds of amino acids in nature. In addition to the 20 kinds used in protein synthesis,a large number of amino acids are used to synthesize biologically active substances,which are widely used in food,medicine and other fields. Among them,the unnatural aromatic amino acid L-phenylglycine as an important component is widely used in the biosynthesis of β-lactam antibiotics such as penicillin,virginomycin S,and protomycin I. At present,L-phenylglycine is mainly synthesized by chemical methods,but this method has low synthesis yield,high pollution,and it is not easy to obtain monochiral compounds. Biosynthesis of L-phenylglycine has the advantages of mild reaction conditions and good product stereoselectivity,so it has received extensive attention. Through the analysis of the two biosynthetic pathways of L-phenylglycine,the screening of relevant enzymes required for synthesis and the balance regeneration of cofactors,etc.,A synthetic route with acetophenone acid,mandelic acid and L-phenylalanine as substrates was gradually formed.This article mainly reviews the biosynthetic pathways and biosynthetic strategies of L-phenylglycine,and provides researchers with optimization directions,with a view to providing a theoretical reference for efficient industrial biosynthesis of L-phenylglycine.

Key words: L-phenylglycine, Biosynthesis, Synthetic strategy