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Literature summary extracted from

  • Daniel, P.P.; Bryant, J.A.; Woodward, F.I.
    Phosphoenolpyruvate carboxylase from pennywort (Umbilicus rupestris) (1984), Biochem. J., 218, 387-393.
    View publication on PubMedView publication on EuropePMC

Activating Compound

EC Number Activating Compound Comment Organism Structure
4.1.1.31 glucose 6-phosphate maximal activation at 2 mM Umbilicus rupestris

Inhibitors

EC Number Inhibitors Comment Organism Structure
4.1.1.31 ADP
-
 Umbilicus rupestris
4.1.1.31 Asp
-
 Umbilicus rupestris
4.1.1.31 ATP
-
 Umbilicus rupestris
4.1.1.31 citrate
-
 Umbilicus rupestris
4.1.1.31 malate L-malate Umbilicus rupestris

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
4.1.1.31 0.2
-
 phosphoenolpyruvate pH 8.2, enzyme from water stressed plants Umbilicus rupestris
4.1.1.31 0.23
-
 phosphoenolpyruvate pH 8.2 Umbilicus rupestris
4.1.1.31 0.86
-
 phosphoenolpyruvate pH 7.2, enzyme from water stressed plants Umbilicus rupestris
4.1.1.31 1.25
-
 phosphoenolpyruvate pH 7.2 Umbilicus rupestris

Molecular Weight [Da]

EC Number Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
4.1.1.31 185300
-
 gel filtration Umbilicus rupestris

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
4.1.1.31 Phosphoenolpyruvate + CO2 Umbilicus rupestris Umbilicus rupestris switches from C3 photosynthesis to an incomplete form of crassulacean acid metabolism, referred to as CAM-idling, when exposed to water stress. This switch is accompanied by an increase in the activity of phosphoenolpyruvate carboxylase ?
-
 ?

Organism

EC Number Organism UniProt Comment Textmining
4.1.1.31 Umbilicus rupestris
-
-
-

Source Tissue

EC Number Source Tissue Comment Organism Textmining
4.1.1.31 leaf
-
 Umbilicus rupestris
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
4.1.1.31 phosphoenolpyruvate + CO2
-
 Umbilicus rupestris phosphate + oxaloacetate
-
 ?
4.1.1.31 Phosphoenolpyruvate + CO2 Umbilicus rupestris switches from C3 photosynthesis to an incomplete form of crassulacean acid metabolism, referred to as CAM-idling, when exposed to water stress. This switch is accompanied by an increase in the activity of phosphoenolpyruvate carboxylase Umbilicus rupestris ?
-
 ?

pH Optimum

EC Number pH Optimum Minimum pH Optimum Maximum Comment Organism
4.1.1.31 8 8.2
-
 Umbilicus rupestris