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Literature summary for 4.1.1.31 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

Inhibitors Comment Organism Structure
2-oxoglutarate inhibition of enzyme form PEPC I and PEPC II, no inhibition of enzyme form PEPC III Lupinus luteus
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
Glu inhibition of enzyme form PEPC I and PEPC II, no inhibition of enzyme form PEPC III Lupinus luteus
malate competitive inhibitor of enzyme form PEPC I and enzyme form PEPC III, mixed-type inhibitor for enzyme form PEPC II Lupinus luteus
pyruvate inhibition of enzyme form PEPC I and PEPC II, no inhibition of enzyme form PEPC III Lupinus luteus

KM Value [mM]

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

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ activates Lupinus luteus

Organism

Organism UniProt Comment Textmining
Lupinus luteus
-
-
-

Source Tissue

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

Substrates and Products (Substrate)

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

Temperature Optimum [°C]

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

Temperature Stability [°C]

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