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

2 Transferases

2.1 Transferring one-carbon groups

2.1.1 Methyltransferases

2.1.1.175 tricin synthase

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Results	in table
2	AA Sequence
4	Cloned(Commentary)
1	Cofactor
2	General Information
2	kcat/KM [mM/s]
4	KM Value [mM]
7	Metals/Ions
4	Molecular Weight [Da]
2	Natural Substrates/ Products (Substrates)
7	Organism
3	pH Optimum
2	pI Value
8	Protein Variants
2	Purification (Commentary)
3	Reaction
6	Reference
5	Source Tissue
2	Storage Stability
12	Substrates and Products (Substrate)
4	Subunits
5	Synonyms
1	Systematic Name
3	Temperature Optimum [°C]

Systematic Name

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Systematic Name on EC 2.1.1.175 - tricin synthase

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S-adenosyl-L-methionine:tricetin 3',5'-O-dimethyltransferase

The enzymes from Oryza sativa (ROMT-15 and ROMT-17) catalyses the stepwise methylation of tricetin to its 3'-mono- and 3',5'-dimethyl ethers. In contrast with the wheat enzyme (EC 2.1.1.169, tricetin 3',4',5'-O-trimethyltransferase), tricetin dimethyl ether is not converted to its 3',4',5'-trimethylated ether derivative [1]. The enzymes from Hordeum vulgare (HvOMT1) and from Zea mays (ZmOMT1) form the 3',5'-dimethyl derivative as the major product [2].