2.1.1.46	isoflavone 4'-O-methyltransferase	formononetin biosynthesis	
2.1.1.212	2,7,4'-trihydroxyisoflavanone 4'-O-methyltransferase	formononetin biosynthesis	
4.2.1.105	2-hydroxyisoflavanone dehydratase	formononetin biosynthesis