Flavonoid 4'-O-methyltransferase
From Wikipedia, the free encyclopedia
Flavonoid 4'-O-methyltransferase (EC 2.1.1.231, SOMT-2, 4'-hydroxyisoflavone methyltransferase) is an enzyme with systematic name S-adenosyl-L-methionine:flavonoid 4'-O-methyltransferase.[1] This enzyme catalyses the following chemical reaction
This is a methylation reaction in which the flavanone, naringenin, is converted to a specific methyl ether, isosakuranetin (ponciretin). The methyl group comes from the cofactor, S-adenosyl methionine (SAM), which becomes S-adenosyl-L-homocysteine (SAH). The enzyme was characterised from soybean.[2]
