Inhibitors of glycosyltransferases are important tools for studying sugar transfer to a variety of natural product based acceptors. We present a new concept for specific inhibitors of glycosyltransferases. As a first step we present an inhibitor for the UDP binding site of the humanbloodgroupBgalactosyltransferase (see graphic).
The effect of MR1 ligand glyco-analogues on mucosal-associated invariant T (MAIT) cell activation
作者:Chriselle D. Braganza、Kensuke Shibata、Aisa Fujiwara、Chihiro Motozono、Koh-Hei Sonoda、Sho Yamasaki、Bridget L. Stocker、Mattie S. M. Timmer
DOI:10.1039/c9ob01436e
日期:——
MAIT cells revealed that the absence of the 2'-hydroxygroup on the sugar backbone of lumazines improved MR1-MAIT TCR binding, which could be rationalised using computational docking studies. Although none of the lumazines activated MAIT cells, all 5-OP-RU analogues showed significant MAIT cell activation, with several analogues exhibiting comparable activity to 5-OP-RU. Docking studies with the 5-OP-RU
Location, location, location: All the stereoisomers of 5‐OP‐RU were synthesized to elucidate the effects of its stereochemistry on MR1‐dependent MAIT cell activation. Of the stereoisomers, only the 4’‐OH epimer demonstrated potent MAIT cell activity, thus indicating that the configuration of the 2’‐OH and 3’‐OH group could be important for agonistic activity.