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Literature summary for 4.1.1.31 extracted from

  • Patel, H.M.; Kraszewski, J.L.; Mukhopadhyay, B.
    The phosphoenolpyruvate carboxylase from Methanothermobacter thermautotrophicus has a novel structure (2004), J. Bacteriol., 186, 5129-5137.
    View publication on PubMedView publication on EuropePMC

Inhibitors

Inhibitors Comment Organism Structure
ADP 10mM, 57% inhibition in presence of 5 mM Mg2+, 46% inhibition in presence of 15 mM Mg2+ Methanothermobacter thermautotrophicus
AMP 10mM, 16% inhibition in presence of 5 mM Mg2+, 12% inhibition in presence of 15 mM Mg2+ Methanothermobacter thermautotrophicus
ATP 10mM, 92% inhibition in presence of 5 mM Mg2+, 65% inhibition in presence of 15 mM Mg2+ Methanothermobacter thermautotrophicus
GTP 10mM, 58% inhibition in presence of 5 mM Mg2+, 15% inhibition in presence of 15 mM Mg2+ Methanothermobacter thermautotrophicus
KCl 0.05-1.0 M, 60% inhibition at 0.25 M, 27% inhibition at 0.1 M Methanothermobacter thermautotrophicus
L-aspartate 10 mM, 41% inhibition in presence of 5 mM Mg2+ or 15 mM Mg2+ Methanothermobacter thermautotrophicus
NaCl 0.05-1.0 M, 60% inhibition at 0.25 M, 27% inhibition at 0.1 M Methanothermobacter thermautotrophicus

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.46
-
phosphoenolpyruvate
-
Methanothermobacter thermautotrophicus
1.8
-
HCO3-
-
Methanothermobacter thermautotrophicus

Metals/Ions

Metals/Ions Comment Organism Structure
Mg2+ required Methanothermobacter thermautotrophicus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
50000
-
4 * 50000 Methanothermobacter thermautotrophicus
277000
-
gel filtration Methanothermobacter thermautotrophicus

Organism

Organism UniProt Comment Textmining
Methanothermobacter thermautotrophicus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Methanothermobacter thermautotrophicus

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Methanothermobacter thermautotrophicus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
phosphoenolpyruvate + HCO3-
-
Methanothermobacter thermautotrophicus phosphate + oxaloacetate
-
?

Subunits

Subunits Comment Organism
homotetramer 4 * 50000 Methanothermobacter thermautotrophicus

Synonyms

Synonyms Comment Organism
PpcA
-
Methanothermobacter thermautotrophicus

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
62
-
-
Methanothermobacter thermautotrophicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.8
-
-
Methanothermobacter thermautotrophicus

pH Range

pH Minimum pH Maximum Comment Organism
6.3 7.2 pH 6.3: 5% of maximal activity, pH 7.2: 92% of maximal activity Methanothermobacter thermautotrophicus