“Tricin synthase”的意思、由来-开放百科全书

词条

Tricin synthase

释义

References
External links

{{Infobox enzyme
| Name = Tricin synthase
| EC_number = 2.1.1.175
| CAS_number =
| IUBMB_EC_number = 2/1/1/175
| GO_code =
| image =
| width =
| caption =
}}Tricin synthase ({{EC number|2.1.1.175}}, ROMT-17, ROMT-15, HvOMT1, ZmOMT1) is an enzyme with systematic name S-adenosyl-L-methionine:tricetin 3',5'-O-dimethyltransferase.^[1]^[2] This enzyme catalyses the following chemical reaction

2 S-adenosyl-L-methionine + tricetin 2 S-adenosyl-L-homocysteine + 3',5'-O-dimethyltricetin (overall reaction)

(1a) S-adenosyl-L-methionine + tricetin S-adenosyl-L-homocysteine + 3'-O-methyltricetin

(1b) S-adenosyl-L-methionine + 3'-O-methyltricetin S-adenosyl-L-homocysteine + 3',5'-O-dimethyltricetin

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.

References

1. ^{{cite journal | title = Cation dependent O-methyltransferases from rice |author1 = Lee, Y.J. |author2 =Kim, B.G. |author3 =Chong, Y. |author4 =Lim, Y. |author5 =Ahn, J.H. |journal = Planta |date = 2008 |volume = 227 |pages = 641-647 |pmid = 17943312 |doi=10.1007/s00425-007-0646-4}}
2. ^{{cite journal | title = Characterization of two O-methyltransferase-like genes in barley and maize |vauthors = Zhou JM, Fukushi Y, Wollenweber E, Ibrahim RK |journal = Pharm. Biol. |date = 2008 |volume = 46 |pages = 26-34 |pmid = |doi=10.1080/13880200701729745}}

External links

{{MeshName|Tricin+synthase}}

2 : EC 2.1.1|Flavones metabolism

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