生物技术通报 ›› 2017, Vol. 33 ›› Issue (11): 136-142.doi: 10.13560/j.cnki.biotech.bull.1985.2017-0363

• 研究报告 • 上一篇    下一篇

利用糖基转移酶UGT73B6在大肠杆菌中生物催化酚苷类天然产物

何庆林1,2, 白艳芬2, 周威2, 殷华2, 陈宁1, 庄以彬2, 刘涛2   

  1. 1. 天津科技大学生物工程学院,天津 300457;
    2. 中国科学院天津工业生物技术研究所,天津 300308
  • 收稿日期:2017-06-06 出版日期:2017-11-26 发布日期:2017-11-22
  • 作者简介:何庆林,男,硕士研究生,研究方向:天然产物合成生物学;E-mail:15002262485@126.com
  • 基金资助:
    国家自然科学基金资助项目(31400026,21302214),中国科学院战略生物资源服务网络计划项目(ZSTH-023)

Biocatalysis of Phenolic Glycosides Natural Products in Escherichia coli Strain Using UGT73B6

HE Qing-lin1,2, BAI Yan-fen2, ZHOU Wei2, YIN Hua2, CHEN Ning1, ZHUANG Yi-bin2, LIU Tao2   

  1. 1. School of Biological Engineering,Tianjin University of Science & Technology,Tianjin 300457;
    2. Tianjin Institute of Industrial Biotechnology,Chinese Academy of Science;Tianjin 300308
  • Received:2017-06-06 Published:2017-11-26 Online:2017-11-22

摘要: 植物红景天来源的糖基转移酶UGT73B6,具有底物宽泛性,能糖基化多种天然化合物。旨在实现在大肠杆菌中生物催化合成酚苷类化合物。利用糖基转移酶UGT73B6的催化活性,在大肠杆菌BL21(DE3)中饲喂7种不同酚类化合物,通过生物转化的方法,首次实现利用糖基转移酶UGT73B6催化8种糖苷化合物的合成,进一步探索了糖基转移酶UGT73B6的底物宽泛性。在此基础上,提供了一种通过微生物转化实现生物合成酚苷类化合物的方法,具有较大的应用价值。

关键词: 糖基转移酶UGT73B6, 生物转化, 酚苷类化合物, 大肠杆菌

Abstract: The glycosyltransferase UGT73B6 from Rhodiola sachalinensis with substrate flexibility can glycosylate many natural products catalyzed by UDP-glycosyltransferases(UGTs). To achieve the biosynthesis of phenolic compounds in Escherichia coli,in this study,we utilized the catalytic activity of the glycosyltransferase UGT73B6 and fed 7 different phenolic compounds in Escherichia coli BL21(DE3). By using biotransformation,we successfully achieved the biocatalysis of 8 glycoside compounds for the first time in Escherichia coli with UGT73B6,and further we explored the substrate flexibility of UGT73B6. On the basis of this study,we provided an effective and economical method to produce phenolic glycosides by microbial transformation,which has a great application value.

Key words: glycosyltransferase UGT73B6, biotransformation, phenolic glycosides, Escherichia coli