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Crocetin glucosyltransferase

Crocetin glucosyltransferase (, crocetin GTase, UGTCs2) is an enzyme with systematic name UDP-glucose:crocetin 8-O-D-glucosyltransferase. This enzyme catalyses the following chemical reaction

(1) UDP-glucose + crocetin UDP + beta-D-glucosyl crocetin
(2) UDP-glucose + beta-D-glucosyl crocetin UDP + bis(beta-D-glucosyl) crocetin
(3) UDP-glucose + beta-D-gentiobiosyl crocetin UDP + beta-D-gentiobiosyl beta-D-glucosyl crocetin

In Crocus sativus this enzyme esterifies a free carboxyl group of crocetin or crocetin glycosyl ester.

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