Crocetin glucosyltransferase

Crocetin glucosyltransferase
Identifiers
EC number	2.4.1.271
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Search PMC articles PubMed articles NCBI proteins

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 $\rightleftharpoons$ UDP + beta-D-glucosyl crocetin

(2) UDP-glucose + beta-D-glucosyl crocetin $\rightleftharpoons$ UDP + bis(beta-D-glucosyl) crocetin

(3) UDP-glucose + beta-D-gentiobiosyl crocetin $\rightleftharpoons$ 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

1. Côté, F., Cormier, F., Dufresne, C. and 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, A.R., Nohales, P.F., Perez, J.A. and Gomez-Gomez, L. (2004). "Glucosylation of the saffron apocarotenoid crocetin by a glucosyltransferase isolated from Crocus sativus stigmas". Planta 219 (6): 955–966. doi:10.1007/s00425-004-1299-1. PMID 15605174.

External links

• Crocetin glucosyltransferase at the US National Library of Medicine Medical Subject Headings (MeSH)