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ENZYME entry: EC

Accepted Name
Flavonoid 3',5'-methyltransferase.
Reaction catalysed
  • S-adenosyl-L-methionine + a 3'-hydroxyflavonoid <=> S-adenosyl-L-homocysteine + a 3'-methoxyflavonoid
  • S-adenosyl-L-methionine + a 5'-hydroxy-3'-methoxyflavonoid <=> S-adenosyl-L-homocysteine + a 3',5'-dimethoxyflavonoid
  • Isolated from Vitis vinifera (grape).
  • Most active with delphinidin 3-glucoside but also acts on cyanidin 3-glucoside, cyanidin, myricetin, quercetin and quercetin 3-glucoside.
  • The enzyme from Catharanthus roseus was most active with myricetin.
  • Formerly EC
PRIAM enzyme-specific profiles2.1.1.267
KEGG Ligand Database for Enzyme Nomenclature2.1.1.267
IUBMB Enzyme Nomenclature2.1.1.267
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