EC 2.1.1.175 - Tricin synthase

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IntEnz Enzyme Nomenclature
EC 2.1.1.175

Names

Accepted name:
tricin synthase
Other names:
ROMT-17
ROMT-15
HvOMT1
ZmOMT1
Systematic name:
S-adenosyl-L-methionine:tricetin 3',5'-O-dimethyltransferase

Reaction

Comments:

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 2.1.1.167, 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].

Links to other databases

Enzymes and pathways: NC-IUBMB , BRENDA , ExplorEnz , ENZYME@ExPASy , KEGG , MetaCyc , UniPathway
Structural data: CSA , EC2PDB
UniProtKB/Swiss-Prot:

References

  1. Lee, Y. J., Kim, B. G., Chong, Y., Lim, Y., Ahn, J. H.
    Cation dependent O-methyltransferases from rice.
    Planta 227: 641-647 (2008). [PMID: 17943312]
  2. Zhou, J.-M., Fukushi, Y., Wollenweber, E., Ibrahim, R.K.
    Characterization of two O-methyltransferase-like genes in barley and maize.
    Pharm. Biol. 46: 26-34 (2008).

[EC 2.1.1.175 created 2010]