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Literature summary for 4.1.1.31 extracted from

  • Vance, C.P.; Stade, S.
    Alfalfa root nodule carbon dioxide fixation. II. Partial purification and characterization of root nodule phosphoenolpyruvate carboxylase (1984), Plant Physiol., 75, 261-264.
    View publication on PubMedView publication on EuropePMC

Inhibitors

Inhibitors Comment Organism Structure
AMP slight Medicago sativa
Ca2+ substitution of 20 mM CaCl2 for 20 mM MgCl2 results in 90-100% inhibition Medicago sativa
malate
-
Medicago sativa
Mn2+ substitution of 20 mM MnCl2 for 20 mM MgCl2 results in 90-100% inhibition Medicago sativa
Zn2+ substitution of 20 mM ZnCl2 for 20 mM MgCl2 results in 90-100% inhibition Medicago sativa

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.21
-
phosphoenolpyruvate
-
Medicago sativa

Localization

Localization Comment Organism GeneOntology No. Textmining
cytosol
-
Medicago sativa 5829
-

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ Km: 0.1 mM Medicago sativa

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
97000
-
x * 97000, SDS-PAGE Medicago sativa

Organism

Organism UniProt Comment Textmining
Medicago sativa
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partial Medicago sativa

Source Tissue

Source Tissue Comment Organism Textmining
root nodule
-
Medicago sativa
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
42.3
-
-
Medicago sativa

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
phosphoenolpyruvate + CO2
-
Medicago sativa phosphate + oxaloacetate
-
?

Subunits

Subunits Comment Organism
? x * 97000, SDS-PAGE Medicago sativa

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
-
Medicago sativa

pH Range

pH Minimum pH Maximum Comment Organism
7 9 50% of maximal activity at pH 7.0 and at pH 9.0 Medicago sativa