Entry
Name
beta-D-glucosyl crocetin beta-1,6-glucosyltransferase;
UGT94E5;
UDP-glucose:crocetin glucosyl ester glucosyltransferasee
Class
Transferases;
Glycosyltransferases;
Hexosyltransferases
BRITE hierarchy
Sysname
UDP-alpha-D-glucose:beta-D-glucosyl crocetin beta-1,6-glucosyltransferase
Reaction(IUBMB)
(1) UDP-alpha-D-glucose + beta-D-glucosyl crocetin = UDP + beta-D-gentiobiosyl crocetin [RN:
R10988 ];
(2) UDP-alpha-D-glucose + bis(beta-D-glucosyl) crocetin = UDP + beta-D-gentiobiosyl beta-D-glucosyl crocetin [RN:
R10989 ];
(3) UDP-alpha-D-glucose + beta-D-gentiobiosyl beta-D-glucosyl crocetin = UDP + crocin [RN:
R10990 ]
Reaction(KEGG)
Substrate
UDP-alpha-D-glucose [CPD:
C00029 ];
beta-D-glucosyl crocetin [CPD:
C19867 ];
bis(beta-D-glucosyl) crocetin [CPD:
C19868 ];
beta-D-gentiobiosyl beta-D-glucosyl crocetin [CPD:
C17513 ]
Product
UDP [CPD:
C00015 ];
beta-D-gentiobiosyl crocetin [CPD:
C19869 ];
beta-D-gentiobiosyl beta-D-glucosyl crocetin [CPD:
C17513 ];
crocin [CPD:
C08589 ]
Comment
The enzyme, characterized from the plant Gardenia jasminoides, adds a glucose to several crocetin glycosyl esters, but not to crocetin (cf. EC
2.4.1.271 , crocetin glucosyltransferase).
History
EC 2.4.1.330 created 2014
Pathway
ec00999 Biosynthesis of various plant secondary metabolites
ec01110 Biosynthesis of secondary metabolites
Orthology
K21354 beta-D-glucosyl crocetin beta-1,6-glucosyltransferase
Reference
Authors
Nagatoshi M, Terasaka K, Owaki M, Sota M, Inukai T, Nagatsu A, Mizukami H
Title
UGT75L6 and UGT94E5 mediate sequential glucosylation of crocetin to crocin in Gardenia jasminoides.
Journal
Sequence
Other DBs
ExPASy - ENZYME nomenclature database: 2.4.1.330