作者:Yue Tang、Min Wang、Hua Qin、Xiangxiang An、Zhengyan Guo、Guoliang Zhu、Lixin Zhang、Yihua Chen
DOI:10.1021/acs.jnatprod.0c00902
日期:2020.10.23
Avermectin (AVM) refers to eight macrolides containing a common l-oleandrosyl disaccharide chain indispensable to their antiparasitic bioactivities. We delineated the biosynthetic pathway of TDP-β-l-oleandrose (1), the sugar donor of AVM, by characterizing AveBVIII, AveBV, and AveBVII as TDP-sugar 3-ketoreductase, 5-epimerase, and 3-O-methyltransferase, respectively. On the basis of this pathway, we
Avermectin (AVM) 是指八种大环内酯类化合物,含有对其抗寄生虫生物活性必不可少的常见l-夹竹桃基二糖链。我们划定TDP-β的生物合成途径-l -oleandrose(1),AVM的糖供体,通过表征AveBVIII,AveBV和AveBVII作为TDP-糖-3-酮还原酶,5差向异构酶,和3- Ò -methyltransferase,分别。在这个途径的基础上,我们成功重组的生物合成1的大肠杆菌。我们的工作完成了AVM的生物合成途径,为进一步的研究奠定了坚实的基础。