This invention relates to
glycosyltransferase and an application thereof. Specifically, provided is using
glycosyltransferase GT29-32, GT29-33, GT29-34, GT29-4, GT29-5, GT29-7, GT29-9, GT29-11, GT29-13, GT29-17, GT29-18, GT29-19, GT29-20, GT29-21, GT29-22, GT29-23, GT29-24, GT29-25, GT29-36, GT29-37, GT29-42, GT29-43, GT29-45, GT29-46, PNUGT29-1, PNUGT29-2, PNUGT29-3, PNUGT29-4, PNUGT29-5, PNUGT29-6, PNUGT29-7, PNUGT29-8, PNUGT29-9, PNUGT29-14, and PNUGT29-15, and derived polypeptides thereof to catalyze the first
glycosyl at position C-20, the first
glycosyl at position C-6, and the first
glycosyl at position C-3 of a tetracyclic
triterpene compound substrate to elongate a
carbohydrate chain, thereby obtaining a catalytic reaction of
ginsenoside products such as
ginsenoside Rg3,
ginsenoside Rd, ginseno-side Rb 1, ginsenoside Rb3,
saponin DMGG,
saponin DMGX, gypenoside LXXV, gypenoside XVII, gypenoside XIII, gypenoside IX, notoginsenoside U, and notoginsenoside R1, notoginsenoside R2, notoginsenoside R3, 3-0-13-(D-xylopyranosyl)-13-(D-glucopyra-nosyl)-PPD, 3-0-13-(D-xylopyranosyl)-13-(D-glucopyranosyl)-CK, 20-O-Glucosylginsenoside Rf, and
Ginsenoside F3. The
glycosyltransferase can further be applied to construction of artificially synthesized ginsenoside, novel ginsenoside, and derivatives thereof.