o-dihydroxycoumarin 7-O-glucosyltransferase () is an enzyme that catalyzes the chemical reaction
The two substrates of this enzyme characterised from tobacco are daphnetin and UDP-glucose. Its products are daphnin and uridine diphosphate (UDP).
This enzyme belongs to the family of glycosyltransferases, specifically the hexosyltransferases. The systematic name of this enzyme class is UDP-glucose:7,8-dihydroxycoumarin 7-O-beta-D-glucosyltransferase. Other names in common use include uridine diphosphoglucose-o-dihydroxycoumarin, 7-O-glucosyltransferase, and UDP-glucose:o-dihydroxycoumarin glucosyltransferase.
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