ExplorEnz: EC 2.4.1.363

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2.4.1.363

Accepted name:

ginsenoside 20-O-glucosyltransferase

Reaction:

UDP-α-D-glucose + (20S)-protopanaxadiol = UDP + ginsenoside C-K

Glossary:

(20S)-protopanaxadiol = (3β,12β)-dammar-24-ene-3,12,20-triol
ginsenoside C-K = (3β,12β)-3,12-dihydroxydammar-24-en-20-yl β-D-glucopyranoside

Other name(s):

UGT71A27 (gene name)

Systematic name:

UDP-α-D-glucose:(20S)-protopanaxadiol 20-O-glucosyltransferase (configuration-inverting)

Comments:

The enzyme, characterized from the plant Panax ginseng, transfers a glucosyl moiety to the free C20(S)-OH group of dammarane derivative substrates, including protopanaxatriol, dammarenediol II, (20S)-ginsenoside Rh2, and (20S)-ginsenoside Rg3. It does not act on the 20R epimer of protopanaxadiol, or on ginsenosides that are glucosylated at the C-6 position, such as ginsenoside Rh1 or ginsenoside Rg2.

Links to other databases:

BRENDA, EXPASY, KEGG, MetaCyc

References:

1.	Yan, X., Fan, Y., Wei, W., Wang, P., Liu, Q., Wei, Y., Zhang, L., Zhao, G., Yue, J. and Zhou, Z. Production of bioactive ginsenoside compound K in metabolically engineered yeast. Cell Res. 24 (2014) 770–773. [PMID: 24603359]
2.	Wei, W., Wang, P., Wei, Y., Liu, Q., Yang, C., Zhao, G., Yue, J., Yan, X. and Zhou, Z. Characterization of Panax ginseng UDP-glycosyltransferases catalyzing protopanaxatriol and biosyntheses of bioactive ginsenosides F1 and Rh1 in metabolically engineered yeasts. Mol. Plant 8 (2015) 1412–1424. [PMID: 26032089]

[EC 2.4.1.363 created 2019]