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Literature summary extracted from

  • Marczewski, W.
    Kinetic properties of phosphoenolpyruvate carboxylase from lupin nodules and roots (1989), Physiol. Plant., 76, 539-543.
No PubMed abstract available

Inhibitors

EC Number Inhibitors Comment Organism Structure
4.1.1.31 2-oxoglutarate inhibition of enzyme form PEPC I and PEPC II, no inhibition of enzyme form PEPC III Lupinus luteus
4.1.1.31 Asp at pH 7.2, weak competitive inhibition for enzyme form PEPC I, strong competitive inhibition for enzyme form PEPC II and enzyme form PEPC III Lupinus luteus
4.1.1.31 Glu inhibition of enzyme form PEPC I and PEPC II, no inhibition of enzyme form PEPC III Lupinus luteus
4.1.1.31 malate competitive inhibitor of enzyme form PEPC I and enzyme form PEPC III, mixed-type inhibitor for enzyme form PEPC II Lupinus luteus
4.1.1.31 pyruvate inhibition of enzyme form PEPC I and PEPC II, no inhibition of enzyme form PEPC III Lupinus luteus

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
4.1.1.31 0.09
-
 phosphoenolpyruvate enzyme form PEPC I Lupinus luteus
4.1.1.31 0.15
-
 phosphoenolpyruvate enzyme form PEPC III Lupinus luteus
4.1.1.31 0.18
-
 phosphoenolpyruvate enzyme form PEPC II Lupinus luteus
4.1.1.31 0.25
-
 HCO3- enzyme form PEPC I Lupinus luteus
4.1.1.31 0.7
-
 HCO3- enzyme form PEPC III Lupinus luteus
4.1.1.31 0.9
-
 HCO3- enzyme form PEPC II Lupinus luteus

Metals/Ions

EC Number Metals/Ions Comment Organism Structure
4.1.1.31 Mg2+ activates Lupinus luteus

Organism

EC Number Organism UniProt Comment Textmining
4.1.1.31 Lupinus luteus
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
4.1.1.31 root enzyme form PEPC III Lupinus luteus
-
4.1.1.31 root nodule 2 enzyme form: PEPC I and PEPC II Lupinus luteus
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4.1.1.31 phosphoenolpyruvate + CO2
-
 Lupinus luteus phosphate + oxaloacetate
-
 ?
4.1.1.31 phosphoenolpyruvate + HCO3-
-
 Lupinus luteus phosphate + oxaloacetate
-
 ?

Temperature Optimum [°C]

EC Number Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
4.1.1.31 39
-
 enzyme form PEPC I Lupinus luteus
4.1.1.31 43
-
 enzyme form PEPC II and enzyme form PEPC III Lupinus luteus

Temperature Stability [°C]

EC Number Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
4.1.1.31 50
-
 enzyme form PEPC I: complete inactivation after 15 s, enzyme forms PEPC II and PEPC III: complete inactivation after 25 s Lupinus luteus