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Literature summary for 2.1.1.84 extracted from

  • De Luca, V.; Ibrahim, R.K.
    Enzymatic synthesis of polymethylated flavonols in Chrysosplenium americanum. II. Substrate interaction and product inhibition studies of flavonol 3-, 6-, and 4-O-methyltransferases (1985), Arch. Biochem. Biophys., 238, 606-618.
    View publication on PubMed
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Inhibitors

Inhibitors Comment Organism Structure
3,6,7,3'-Tetramethylquercetagetin noncompetitive product inhibition Chrysosplenium americanum
S-adenosyl-L-homocysteine competitive product inhibition Chrysosplenium americanum

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.018
-
 3,7,3'-Trimethylquercetagetin
-
 Chrysosplenium americanum
0.051
-
 S-adenosyl-L-methionine
-
 Chrysosplenium americanum

Organism

Organism UniProt Comment Textmining
Chrysosplenium americanum
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
 Chrysosplenium americanum

Reaction

Reaction Comment Organism Reaction ID
S-adenosyl-L-methionine + 5,6,3',4'-tetrahydroxy-3,7-dimethoxyflavone = S-adenosyl-L-homocysteine + 5,3',4'-trihydroxy-3,6,7-trimethoxyflavone mechanism Chrysosplenium americanum
a

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
 Chrysosplenium americanum
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
3,7,3'-trimethylquercetagetin + S-adenosyl-L-methionine
-
 Chrysosplenium americanum 3,6,7',3'-tetrametylquercetagetin + S-adenosyl-L-homocysteine
-
 ?