GROUP OF GLYCOSYLTRANSFERASES AND USE THEREOF

摘要

The present invention relates to a group of glycosyltransferases and a use thereof. Specifically, the use of glycosyltransferase gGT29-7 and a polypeptide derived therefrom in catalytic glycosylation of a terpenoid and in synthesizing new saponins is provided. The glycosyltransferase is able to specifically and highly efficiently transfer a glycosyl from a glycosyl donor to a first glycosyl at the C-3 position and/or the C-6 position of a 4-ring triterpenoid, so as to extend the carbohydrate chain. The gylcosyltransferases of the present invention may also be used in constructing artificially synthesized ginsenosides and a variety of new ginsenosides and derivatives thereof.