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ENZYME entry: EC 2.4.1.239

Accepted Name
flavonol-3-O-glucoside glucosyltransferase.
Reaction catalysed
a flavonol 3-O-beta-D-glucoside + UDP-alpha-D-glucose <=> a flavonol 3-O-beta-D-glucosyl-(1->2)-beta-D-glucoside + H(+) + UDP
Comment(s)
  • One of three specific glucosyltransferases in pea (Pisum sativum) that successively add a beta-D-glucosyl group first to O-3 of kaempferol, and then to O-2 of the previously added glucosyl group giving the 3-O-sophoroside and then the 3-O-sophorotrioside (see also EC 2.4.1.91 and EC 2.4.1.240).
  • TDP-glucose can replace UDP-glucose as the glucose donor but the reaction proceeds more slowly.
Cross-references
BRENDA2.4.1.239
EC2PDB2.4.1.239
ExplorEnz2.4.1.239
PRIAM enzyme-specific profiles2.4.1.239
KEGG Ligand Database for Enzyme Nomenclature2.4.1.239
IUBMB Enzyme Nomenclature2.4.1.239
IntEnz2.4.1.239
MEDLINEFind literature relating to 2.4.1.239
MetaCyc2.4.1.239
Rhea expert-curated reactions2.4.1.239
UniProtKB/Swiss-Prot
I1KEV6, FG3H_SOYBN;  A0A0G4DBR5, FG3N_SOYBN;  

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