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Literature summary extracted from

  • Nisi, P.D.; Zocchi, G.
    Phosphoenolpyruvate carboxylase in cucumber (Cucumis sativus L.) roots under iron deficiency: activity and kinetic characterization (2000), J. Exp. Bot., 51, 1903-1909.
    View publication on PubMed

Activating Compound

EC Number Activating Compound Comment Organism Structure
4.1.1.31 D-glucose 6-phosphate allosteric activator Cucumis sativus

Inhibitors

EC Number Inhibitors Comment Organism Structure
4.1.1.31 malate 1 mM Cucumis sativus

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
4.1.1.31 0.069
-
 phosphoenolpyruvate pH 8.0, 25°C, enzyme from roots grown in presence of Fe2+ Cucumis sativus
4.1.1.31 0.091
-
 phosphoenolpyruvate pH 8.0, 25°C, enzyme from roots grown in absence of Fe2+ Cucumis sativus
4.1.1.31 0.23
-
 HCO3- pH 8.0, 25°C, enzyme from roots grown in absence of Fe2+ Cucumis sativus
4.1.1.31 0.24
-
 HCO3- pH 8.0, 25°C, enzyme from roots grown in presence of Fe2+ Cucumis sativus

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
4.1.1.31 Mg2+ KM-value for the enzyme from roots grown in presence of Fe2+ is 0.93 mM, The KM-value from enzyme grown in absence of Fe2+ is 0.91 mM Cucumis sativus

Organism

EC Number Organism UniProt Comment Textmining
4.1.1.31 Cucumis sativus
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
4.1.1.31 root
-
 Cucumis sativus
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4.1.1.31 phosphoenolpyruvate + HCO3-
-
 Cucumis sativus phosphate + oxaloacetate
-
 ?

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
4.1.1.31 8
-
 activity of the enzyme from roots grown in absence of Fe2+ is about 4 times higher than the activity of the enzyme grown in presence of Fe2+ Cucumis sativus