ENZYME entry: EC 2.1.1.76

Accepted Name
Quercetin 3-O-methyltransferase.
Alternative Name(s)
Flavonol 3-O-methyltransferase.
Reaction catalysed
S-adenosyl-L-methionine + 3,5,7,3',4'-pentahydroxyflavone <=> S-adenosyl-L-homocysteine + 3-methoxy-5,7,3',4'-tetrahydroxyflavone
Comment(s)
  • Specific for quercetin.
  • Related enzymes bring about the 3-O-methylation of other flavonols, such as galangin and kaempferol.
Cross-references
BRENDA2.1.1.76
EC2PDB2.1.1.76
ExplorEnz2.1.1.76
PRIAM enzyme-specific profiles2.1.1.76
KEGG Ligand Database for Enzyme Nomenclature2.1.1.76
IUBMB Enzyme Nomenclature2.1.1.76
IntEnz2.1.1.76
MEDLINEFind literature relating to 2.1.1.76
MetaCyc2.1.1.76
UniProtKB/Swiss-Prot
P59049, OMT1_CHRAE;  Q42653, OMT2_CHRAE;  

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