Entry
Name
flavonol-3-O-triglucoside O-coumaroyltransferase;
4-coumaroyl-CoA:flavonol-3-O-[beta-D-glucosyl-(1->2)-beta-D-glucoside] 6'''-O-4-coumaroyltransferase (incorrect)
Class
Transferases;
Acyltransferases;
Transferring groups other than aminoacyl groups
BRITE hierarchy
Sysname
4-coumaroyl-CoA:flavonol 3-O-[beta-D-glucosyl-(1->2)-beta-D-glucosyl-(1->2)-beta-D-glucoside] 6'''-O-4-coumaroyltransferase
Reaction(IUBMB)
4-coumaroyl-CoA + a flavonol 3-O-[beta-D-glucosyl-(1->2)-beta-D-glucosyl-(1->2)-beta-D-glucoside] = CoA + a flavonol 3-O-[6-(4-coumaroyl)-beta-D-glucosyl-(1->2)-beta-D-glucosyl-(1->2)-beta-D-glucoside]
Reaction(KEGG)
Substrate
4-coumaroyl-CoA [CPD:
C00223 ];
flavonol 3-O-beta-D-glucosyl-(1->2)-beta-D-glucosyl-(1->2)-beta-D-glucoside [CPD:
C15582 ]
Product
CoA [CPD:
C00010 ];
flavonol 3-O-[6-(4-coumaroyl)-beta-D-glucosyl-(1->2)-beta-D-glucosyl-(1->2)-beta-D-glucoside]
Comment
Acylates kaempferol 3-O-triglucoside on the terminal glucosyl unit, almost certainly at C-6.
History
EC 2.3.1.173 created 2004
Pathway
ec00944 Flavone and flavonol biosynthesis
ec01110 Biosynthesis of secondary metabolites
Reference
Authors
Saylor MH, Mansell RL.
Title
Hydroxycinnamoyl: coenzyme A transferase involved in the biosynthesis of kaempferol-3-(p-coumaroyl triglucoside) in Pisum sativum.
Journal
Z Naturforsch [C] 32:764-8 (1977)
Other DBs
ExPASy - ENZYME nomenclature database: 2.3.1.173