Probing the Catalytic Promiscuity of a Regio- and Stereospecific C-Glycosyltransferase from<i>Mangifera indica</i>
作者:Dawei Chen、Ridao Chen、Ruishan Wang、Jianhua Li、Kebo Xie、Chuancai Bian、Lili Sun、Xiaolin Zhang、Jimei Liu、Lin Yang、Fei Ye、Xiaoming Yu、Jungui Dai
DOI:10.1002/anie.201506505
日期:2015.10.19
The catalytic promiscuity of the novel benzophenone C‐glycosyltransferase, MiCGT, which is involved in the biosynthesis of mangiferin from Mangifera indica, was explored. MiCGT exhibited a robust capability to regio‐ and stereospecific C‐glycosylation of 35 structurally diverse druglike scaffolds and simple phenolics with UDP‐glucose, and also formed O‐ and N‐glycosides. Moreover, MiCGT was able to
探索了新型二苯甲酮C-糖基转移酶MiCGT的催化混杂性,该酶参与了印度芒果(Mangifera indica)的芒果苷的生物合成。MiCGT对35种结构多样的药物样支架和带有UDP-葡萄糖的简单酚类化合物具有较强的区域和立体特异性C-糖基化能力,还形成了O-和N-糖苷。而且,MiCGT能够用UDP木糖生成C-木糖苷。还利用MiCGT的OGT可逆性与简单的糖供体一起生成C-葡萄糖苷。三种芳基C-糖苷显示出有效的SGLT2抑制活性,IC 50 值为2.6×,7.6×和7.6×10 -7 M, 分别。这些发现首次证明了通过酶法在药物发现中通过对生物活性天然和非天然产物进行C-糖基化来实现多元化的巨大潜力。