2.1.1.175: tricin synthase
This is an abbreviated version!
For detailed information about tricin synthase, go to the full flat file.
Reaction
2 S-adenosyl-L-methionine + = 2 S-adenosyl-L-homocysteine +
Synonyms
HvOMT1, ROMT-15, ROMT-17, ROMT9, ZmOMT1
ECTree
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Substrates Products
Substrates Products on EC 2.1.1.175 - tricin synthase
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REACTION DIAGRAM
2 S-adenosyl-L-methionine + tricetin
2 S-adenosyl-L-homocysteine + 3',5'-O-dimethyltricetin
S-adenosyl-L-methionine + 3'-O-methyltricetin
S-adenosyl-L-homocysteine + 3',5'-O-dimethyltricetin
S-adenosyl-L-methionine + selgin
S-adenosyl-L-homocysteine + tricin
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-
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-
?
S-adenosyl-L-methionine + tricetin
S-adenosyl-L-homocysteine + selgin
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-
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-
?
2 S-adenosyl-L-homocysteine + 3',5'-O-dimethyltricetin
-
stepwise methylation of tricetin to its 3'-mono- and 3',5'-dimethyl ethers (major product). The enzyme also catalyzes the 3'-O-methylation of luteolin (EC 2.1.1.42) and the methylation of 5-hydroxyferulic acid and quercetin, prefers tricetin over luteolin
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-
?
2 S-adenosyl-L-methionine + tricetin
2 S-adenosyl-L-homocysteine + 3',5'-O-dimethyltricetin
the enzyme catalyzes the stepwise methylation of tricetin to its 3'-mono- and 3',5'-dimethyl ethers. In contrast with the wheat enzyme, tricetin dimethyl ether is not converted to its 3',4',5'-trimethylated ester derivatives. The enzyme also catalyzes the methylation of luteolin, myricetin (formation of the 3',5'-dimethyl ether of myricetin, EC 2.1.1.149) and caffeoyl-CoA. ROMT-15 exhibits similar Kcat/Km values for the four substrates. ROMT-15 can not utilize naringenin, apigenin, or kaempferol. The 2,3-double bond and the O-dihydroxyl group are both required for catalytic activity
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-
?
2 S-adenosyl-L-methionine + tricetin
2 S-adenosyl-L-homocysteine + 3',5'-O-dimethyltricetin
the enzyme catalyzes the stepwise methylation of tricetin to its 3'-mono- and 3',5'-dimethyl ethers. In contrast with the wheat enzyme, tricetin dimethyl ether is not converted to its 3',4',5'-trimethylated ester derivatives. The enzyme also catalyzes the methylation of luteolin, myricetin (formation of the 3',5'-dimethyl ether of myricetin, EC 2.1.1.149) and caffeoyl-CoA. ROMT-17 prefers tricetin. ROMT-15 can not utilize naringenin, apigenin, or kaempferol. The 2,3-double bond and the O-dihydroxyl group are both required for catalytic activity
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-
?
2 S-adenosyl-L-methionine + tricetin
2 S-adenosyl-L-homocysteine + 3',5'-O-dimethyltricetin
-
the enzyme also catalyzes the 3'-O-methylation of luteolin (EC 2.1.1.42) and the methylation of 5-hydroxyferulic acid and quercetin, prefers tricetin over luteolin
-
-
?
S-adenosyl-L-homocysteine + 3',5'-O-dimethyltricetin
-
the enzyme catalyzes the stepwise methylation of tricetin to its 3'-mono- and 3',5'-dimethyl ethers (major product). In contrast with the wheat enzyme, tricetin dimethyl ether is not converted to its 3',4',5'-trimethylated ester derivatives
-
-
?
S-adenosyl-L-methionine + 3'-O-methyltricetin
S-adenosyl-L-homocysteine + 3',5'-O-dimethyltricetin
the enzyme catalyzes the stepwise methylation of tricetin to its 3'-mono- and 3',5'-dimethyl ethers. In contrast with the wheat enzyme, tricetin dimethyl ether is not converted to its 3',4',5'-trimethylated ester derivatives
-
-
?
S-adenosyl-L-methionine + 3'-O-methyltricetin
S-adenosyl-L-homocysteine + 3',5'-O-dimethyltricetin
-
the enzyme catalyzes the stepwise methylation of tricetin to its 3'-mono- and 3',5'-dimethyl ethers (major product). In contrast with the wheat enzyme, tricetin dimethyl ether is not converted to its 3',4',5'-trimethylated ester derivatives
-
-
?
S-adenosyl-L-homocysteine + 3'-O-methyltricetin
-
the enzyme catalyzes the stepwise methylation of tricetin to its 3'-mono- and 3',5'-dimethyl ethers (major product). In contrast with the wheat enzyme, tricetin dimethyl ether is not converted to its 3',4',5'-trimethylated ester derivatives
-
-
?
S-adenosyl-L-methionine + tricetin
S-adenosyl-L-homocysteine + 3'-O-methyltricetin
the enzyme catalyzes the stepwise methylation of tricetin to its 3'-mono- and 3',5'-dimethyl ethers. In contrast with the wheat enzyme, tricetin dimethyl ether is not converted to its 3',4',5'-trimethylated ester derivatives
-
-
?
S-adenosyl-L-methionine + tricetin
S-adenosyl-L-homocysteine + 3'-O-methyltricetin
-
the enzyme catalyzes the stepwise methylation of tricetin to its 3'-mono- and 3',5'-dimethyl ethers (major product). In contrast with the wheat enzyme, tricetin dimethyl ether is not converted to its 3',4',5'-trimethylated ester derivatives
-
-
?