The Enzyme Database

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EC 2.3.1.173     
Accepted name: flavonol-3-O-triglucoside O-coumaroyltransferase
Reaction: 4-coumaroyl-CoA + a flavonol 3-O-[β-D-glucosyl-(1→2)-β-D-glucosyl-(1→2)-β-D-glucoside] = CoA + a flavonol 3-O-[6-(4-coumaroyl)-β-D-glucosyl-(1→2)-β-D-glucosyl-(1→2)-β-D-glucoside]
For diagram of kaempferol-glycoside biosynthesis, click here
Other name(s): 4-coumaroyl-CoA:flavonol-3-O-[β-D-glucosyl-(1→2)-β-D-glucoside] 6′′′-O-4-coumaroyltransferase (incorrect)
Systematic name: 4-coumaroyl-CoA:flavonol 3-O-[β-D-glucosyl-(1→2)-β-D-glucosyl-(1→2)-β-D-glucoside] 6′′′-O-4-coumaroyltransferase
Comments: Acylates kaempferol 3-O-triglucoside on the terminal glucosyl unit, almost certainly at C-6.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number: 64972-79-8
References:
1.  Saylor, M.H. and Mansell, R.L. Hydroxycinnamoyl:coenzyme A transferase involved in the biosynthesis of kaempferol-3-(p-coumaroyl triglucoside) in Pisum sativum. Z. Naturforsch. 32 (1977) 765–768. [PMID: 145116]
[EC 2.3.1.173 created 2004]
 
 


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