View source for Dolichyl-P-Man:Man7GlcNAc2-PP-dolichol alpha-1,6-mannosyltransferase

{{Infobox enzyme
| Name = Crocetin glucosyltransferase
| EC_number = 2.4.1.271
| CAS_number = 
| IUBMB_EC_number = 2/4/1/271
| GO_code = 
| image = 
| width = 
| caption =
}}
'''Crocetin glucosyltransferase''' ({{EC number|2.4.1.271}}, ''crocetin GTase'', ''UGTCs2'') is an [[enzyme]] with system name ''UDP-glucose:crocetin 8-O-D-glucosyltransferase''.<ref>{{cite journal | title = Properties of a glucosyltransferase involved in crocin synthesis |author = C&ocirc;t&eacute;, F., Cormier, F., Dufresne, C. and Willemot, C. |journal = Plant Sci. |year = 2000 |volume = 153 |pages = 55–63 |pmid = | doi = 10.1016/S0168-9452(99)00248-4 }}</ref><ref>{{cite journal | title = Glucosylation of the saffron apocarotenoid crocetin by a glucosyltransferase isolated from ''Crocus sativus'' stigmas |author = Moraga, A.R., Nohales, P.F., Perez, J.A. and Gomez-Gomez, L. |journal = Planta |year = 2004 |volume = 219 |pages = 955–966 |pmid = 15605174 | doi = 10.1007/s00425-004-1299-1 | issue = 6}}</ref> This enzyme [[catalysis|catalyses]] the following [[chemical reaction]]

: (1) [[UDP-glucose]] + crocetin <math>\rightleftharpoons</math> UDP + beta-D-glucosyl crocetin
: (2) UDP-glucose + beta-D-glucosyl crocetin <math>\rightleftharpoons</math> UDP + bis(beta-D-glucosyl) crocetin
: (3) UDP-glucose + beta-D-gentiobiosyl crocetin <math>\rightleftharpoons</math> 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 ==
{{reflist}}

== External links ==
*{{MeshName|Crocetin+glucosyltransferase}}

[[Category:EC 2.4.1]]