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2,7,4'-Trihydroxyisoflavanone 4'-O-methyltransferase

Class of enzymes


Class of enzymes

FieldValue
Name2,7,4'-Trihydroxyisoflavanone 4'-O-methyltransferase
EC_number2.1.1.212

2,7,4'-Trihydroxyisoflavanone 4'-O-methyltransferase (, SAM:2,7,4'-trihydroxyisoflavanone 4'-O-methyltransferase, HI4'OMT, HMM1, MtIOMT5) is an enzyme with systematic name *S-adenosyl-L-methionine:2,7,4'-trihydroxyisoflavanone 4'-O-methyltransferase *. This enzyme catalyses the following chemical reaction

: S-adenosyl-L-methionine + 2,7,4'-trihydroxyisoflavanone \rightleftharpoons S-adenosyl-L-homocysteine + 2,7-dihydroxy-4'-methoxyisoflavanone

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

References

References

  1. (February 2003). "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". Plant & Cell Physiology.
  2. (November 2006). "Functional analysis of members of the isoflavone and isoflavanone O-methyltransferase enzyme families from the model legume Medicago truncatula". Plant Molecular Biology.
  3. (December 2006). "Structural basis for dual functionality of isoflavonoid O-methyltransferases in the evolution of plant defense responses". The Plant Cell.
  4. (December 2006). "Catalytic specificity of pea O-methyltransferases suggests gene duplication for (+)-pisatin biosynthesis". Phytochemistry.
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