2.1.1.46: isoflavone 4'-O-methyltransferase This is an abbreviated version! For detailed information about isoflavone 4'-O-methyltransferase, go to the full flat file .
Reaction
S-adenosyl-L-methionine +
a 4'-hydroxyisoflavone =
S-adenosyl-L-homocysteine +
a 4'-methoxyisoflavone
Synonyms 2,7,4'-trihydroxyisoflavanone 4'-O-methyltransferase/isoflavone 4'-O-methyltransferase, HI4OMT, I4'OMT, isoflavone-specific 4'-O-methyltransferase, More, OMT9, S-adenosylmethionine:isoflavone 4'-O-methyltransferase
ECTree
Systematic Name
Systematic Name on EC 2.1.1.46 - isoflavone 4'-O-methyltransferase
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S-adenosyl-L-methionine:4'-hydroxyisoflavone 4'-O-methyltransferase
Requires Mg2+ for activity. The enzyme catalyses the methylation of daidzein and genistein. It does not methylate naringenin, apigenin, luteolin or kaempferol.