KEGG   ENZYME: 2.4.1.330
Entry
EC 2.4.1.330                Enzyme                                 
Name
beta-D-glucosyl crocetin beta-1,6-glucosyltransferase;
UGT94E5;
UDP-glucose:crocetin glucosyl ester glucosyltransferasee
Class
Transferases;
Glycosyltransferases;
Hexosyltransferases
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
ec01100  Metabolic pathways
ec01110  Biosynthesis of secondary metabolites
Orthology
K21354  beta-D-glucosyl crocetin beta-1,6-glucosyltransferase
Reference
1  [PMID:22569263]
  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
FEBS Lett 586:1055-61 (2012)
DOI:10.1016/j.febslet.2012.03.003
  Sequence
Other DBs
ExplorEnz - The Enzyme Database: 2.4.1.330
IUBMB Enzyme Nomenclature: 2.4.1.330
ExPASy - ENZYME nomenclature database: 2.4.1.330
BRENDA, the Enzyme Database: 2.4.1.330

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