ID 2.1.1.78 DE isoorientin 3'-O-methyltransferase. CA isoorientin + S-adenosyl-L-methionine = isoscoparin + S-adenosyl-L- CA homocysteine + H(+). CC -!- Also acts on isoorientin 2''-O-rhamnoside. CC -!- Involved in the biosynthesis of flavones. //