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Literature summary extracted from
- Characterization and function of phosphoenolpyruvate carboxylase in Methanobacterium thermoautotrophicum (1982), FEMS Microbiol. Lett., 14, 7-10.
No PubMed abstract available
KM Value [mM]
| EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|---|
| 4.1.1.31 | 1 | - |
HCO3- | - |
Methanothermobacter thermautotrophicus |  |
| 4.1.1.31 | 2 | - |
phosphoenolpyruvate | - |
Methanothermobacter thermautotrophicus | |
Metals/Ions
| EC Number | Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|---|
| 4.1.1.31 | Mg2+ | activates | Methanothermobacter thermautotrophicus | |
| 4.1.1.31 | Mg2+ | Km: 0.8 mM | Methanothermobacter thermautotrophicus | |
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 | Methanothermobacter thermautotrophicus | the enzyme is involved in autotrophic CO2 fixation | ? | - |
? | |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 4.1.1.31 | Methanothermobacter thermautotrophicus | - |
- |
- |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 4.1.1.31 | phosphoenolpyruvate + CO2 | - |
Methanothermobacter thermautotrophicus | phosphate + oxaloacetate | - |
? | |
| 4.1.1.31 | Phosphoenolpyruvate + CO2 | the enzyme is involved in autotrophic CO2 fixation | Methanothermobacter thermautotrophicus | ? | - |
? | |
| 4.1.1.31 | phosphoenolpyruvate + HCO3- | - |
Methanothermobacter thermautotrophicus | phosphate + oxaloacetate | - |
? | |
Temperature Optimum [°C]
| EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 4.1.1.31 | 50 | - |
- |
Methanothermobacter thermautotrophicus |
pH Optimum
| EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|---|
| 4.1.1.31 | 7.4 | - |
- |
Methanothermobacter thermautotrophicus |
pH Range
| EC Number | pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|---|
| 4.1.1.31 | 5.7 | 8 | pH 5.7: about 65% of maximal activity, pH 8.0: about 50% of maximal activity | Methanothermobacter thermautotrophicus |
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