The Enzyme Database

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Accepted name: protopanaxadiol-type ginsenoside-3-O-glucoside 2′′-O-glucosyltransferase
Reaction: (1) UDP-α-D-glucose + (20S)-ginsenoside Rh2 = UDP + (20S)-ginsenoside Rg3
(2) UDP-α-D-glucose + ginsenoside F2 = UDP + ginsenoside Rd
Glossary: (20S)-ginsenoside Rh2 = (3β,12β)-12,20-dihydroxydammar-24-en-3-yl β-D-glucopyranoside
ginsenoside F2 = (3β,12β)-20-(β-D-glucopyranosyloxy)-12-hydroxydammar-24-en-3-yl β-D-glucopyranoside
Other name(s): UGT94Q2 (gene name)
Systematic name: UDP-α-D-glucose:3-O-glucosyl-protopanaxadiol-type ginsenoside 2′′-O-glucosyltransferase
Comments: The enzyme, characterized from the plant Panax ginseng, transfers a glucosyl moiety to the 2′′ position of the glucose moiety in the protopanaxadiol-type ginsenoside-3-O-glucosides (20S)-ginsenoside Rh2 and ginsenoside F2.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc
1.  Jung, S.C., Kim, W., Park, S.C., Jeong, J., Park, M.K., Lim, S., Lee, Y., Im, W.T., Lee, J.H., Choi, G. and Kim, S.C. Two ginseng UDP-glycosyltransferases synthesize ginsenoside Rg3 and Rd. Plant Cell Physiol. 55 (2014) 2177–2188. [PMID: 25320211]
[EC created 2019]

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