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Literature summary for 1.14.14.88 extracted from

  • Hinderer, W.; Flentje, U.; Barz, W.
    Microsomal isoflavone 2'- and 3'-hydroxylases from chickpea (Cicer arietinum L.) cell suspensions induced for pterocarpan phytoalexin formation (1987), FEBS Lett., 214, 101-106.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
additional information cells susceptible to Ascochyta rabiei can be elicitor-induced to 500% activity Cicer arietinum
NADH synergistic effect with NADPH, 150% of NADPH activity Cicer arietinum

Inhibitors

Inhibitors Comment Organism Structure
cytochrome c 0.01 mM reduces activity to 4%, 0.1 mM reduces activity to 1% Cicer arietinum
additional information no inhibition by 5 mM KCN and 1 mM EDTA Cicer arietinum

Localization

Localization Comment Organism GeneOntology No. Textmining
microsome
-
Cicer arietinum
-
-

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
formononetin + [reduced NADPH-hemoprotein reductase] + O2 Cicer arietinum involved in the biosynthesis of the pterocarpin phytoalexin maackiain, cytochrome P450-dependent monooxygenase 3'-hydroxyformononetin + [oxidized NADPH-hemoprotein reductase] + H2O
-
ir

Organism

Organism UniProt Comment Textmining
Cicer arietinum
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
cell suspension culture
-
Cicer arietinum
-

Storage Stability

Storage Stability Organism
-20°C, 100 mM potassium phosphate, pH 7.5 containing 400 mM sucrose and 3.5 mM 2-mercaptoethanol, 24 h Cicer arietinum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
biochanin A + [reduced NADPH-hemoprotein reductase] + O2
-
Cicer arietinum pratensein + [oxidized NADPH-hemoprotein reductase] + H2O
-
ir
formononetin + [reduced NADPH-hemoprotein reductase] + O2
-
Cicer arietinum 3'-hydroxyformononetin + [oxidized NADPH-hemoprotein reductase] + H2O
-
ir
formononetin + [reduced NADPH-hemoprotein reductase] + O2 involved in the biosynthesis of the pterocarpin phytoalexin maackiain, cytochrome P450-dependent monooxygenase Cicer arietinum 3'-hydroxyformononetin + [oxidized NADPH-hemoprotein reductase] + H2O
-
ir
additional information no substrates are genistein and daidzein Cicer arietinum ?
-
?
additional information monohydroxylation of 4'-methoxyisoflavones Cicer arietinum ?
-
?

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
assay conditions Cicer arietinum

Cofactor

Cofactor Comment Organism Structure
additional information no cofactors are FAD and FMN Cicer arietinum