en>Sullivan.t.j: Elaborated on Ladyzhensakaya's inequality.

2013-02-14T11:57:59Z

Elaborated on Ladyzhensakaya's inequality.

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{{Infobox enzyme
| Name = 2,7,4'-Trihydroxyisoflavanone 4'-O-methyltransferase
| EC_number = 2.1.1.212
| CAS_number =
| IUBMB_EC_number = 2/1/1/212
| GO_code =
| image =
| width =
| caption =
}}
'''2,7,4'-Trihydroxyisoflavanone 4'-O-methyltransferase''' ({{EC number|2.1.1.212}}, ''SAM:2,7,4'-trihydroxyisoflavanone 4'-O-methyltransferase'', ''HI4'OMT'', ''HMM1'', ''MtIOMT5'') is an [[enzyme]] with system name ''S-adenosyl-L-methionine:2,7,4'-trihydroxyisoflavanone 4'-O-methyltransferase ''.<ref>{{cite journal | title = cDNA cloning and biochemical characterization of S-adenosyl-L-methionine: 2,7,4′-trihydroxyisoflavanone 4′-O-methyltransferase, a critical enzyme of the legume isoflavonoid phytoalexin pathway |author = Akashi, T., Sawada, Y., Shimada, N., Sakurai, N., Aoki, T. and Ayabe, S. |journal = Plant Cell Physiol. |year = 2003 |volume = 44 |pages = 103–112 |pmid = 12610212}}</ref><ref>{{cite journal | title = Functional analysis of members of the isoflavone and isoflavanone O-methyltransferase enzyme families from the model legume Medicago truncatula |author = Deavours, B.E., Liu, C.J., Naoumkina, M.A., Tang, Y., Farag, M.A., Sumner, L.W., Noel, J.P. and Dixon, R.A. |journal = Plant Mol. Biol. |year = 2006 |volume = 62 |pages = 715–733 |pmid = 17001495}}</ref><ref>{{cite journal | title = Structural basis for dual functionality of isoflavonoid O-methyltransferases in the evolution of plant defense responses |author = Liu, C.J., Deavours, B.E., Richard, S.B., Ferrer, J.L., Blount, J.W., Huhman, D., Dixon, R.A. and Noel, J.P. |journal = Plant Cell |year = 2006 |volume = 18 |pages = 3656–3669 |pmid = 17172354}}</ref><ref>{{cite journal | title = Catalytic specificity of pea O-methyltransferases suggests gene duplication for (+)-pisatin biosynthesis |author = Akashi, T., VanEtten, H.D., Sawada, Y., Wasmann, C.C., Uchiyama, H. and Ayabe, S. |journal = Phytochemistry |year = 2006 |volume = 67 |pages = 2525–2530 |pmid = }}</ref> This enzyme [[catalysis|catalyses]] the following [[chemical reaction]]

: [[S-adenosyl-L-methionine]] + [[2,7,4'-trihydroxyisoflavanone]] <math>\rightleftharpoons</math> [[S-adenosyl-L-homocysteine]] + 2,7-dihydroxy-4'-methoxyisoflavanone

This enzyme pecifically methylates 2,7,4'-trihydroxyisoflavanone on the 4'-position.

== References ==
{{reflist}}

== External links ==
* {{MeshName|2,7,4'-trihydroxyisoflavanone+4'-O-methyltransferase}}

[[Category:EC 2.1.1]]

Interpolation inequality - Revision history

en>Sullivan.t.j: Elaborated on Ladyzhensakaya's inequality.