Jump to content

Crocetin glucosyltransferase

From Wikipedia, the free encyclopedia
Crocetin glucosyltransferase
Identifiers
EC no.2.4.1.271
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Search
PMCarticles
PubMedarticles
NCBIproteins

Crocetin glucosyltransferase (EC 2.4.1.271, crocetin GTase, UGTCs2) is an enzyme with systematic name UDP-glucose:crocetin 8-O-D-glucosyltransferase.[1][2] 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.

References

[edit]
  1. ^ Côté F, Cormier F, Dufresne C, Willemot C (2000). "Properties of a glucosyltransferase involved in crocin synthesis". Plant Sci. 153: 55–63. doi:10.1016/S0168-9452(99)00248-4.
  2. ^ Moraga AR, Nohales PF, Pérez JA, Gómez-Gómez L (October 2004). "Glucosylation of the saffron apocarotenoid crocetin by a glucosyltransferase isolated from Crocus sativus stigmas". Planta. 219 (6): 955–66. doi:10.1007/s00425-004-1299-1. PMID 15605174.
[edit]