ID   2.1.1.175
DE   tricin synthase.
CA   2 S-adenosyl-L-methionine + tricetin = 3',5'-di-O-methyltricetin + 2 H(+)
CA   + 2 S-adenosyl-L-homocysteine.
CC   -!- The enzymes from Oryza sativa (ROMT-15 and ROMT-17) catalyzes the
CC       stepwise methylation of tricetin to its 3'-mono- and 3',5'-dimethyl
CC       ethers.
CC   -!- In contrast with the wheat enzyme (EC 2.1.1.167, tricetin 3',4',5'-O-
CC       trimethyltransferase), tricetin dimethyl ether is not converted to
CC       its 3',4',5'-trimethylated ether derivative.
CC   -!- The enzymes from Hordeum vulgare (HvOMT1) and from Zea mays (ZmOMT1)
CC       form the 3',5'-dimethyl derivative as the major product.
DR   Q06509, COMT1_MAIZE;  Q9XGP7, OMT15_ORYSJ;  Q7F8T6, OMT17_ORYSJ;
//