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Literature summary for 4.1.1.38 extracted from
- Phosphoenol-pyruvate-carboxylase activity in cotton and Sorghum seeds and its relation to seedling development (1978), Planta, 139, 239-243.
Activating Compound
| Activating Compound | Comment | Organism | Structure |
|---|---|---|---|
| phosphate | stimulates | Gossypium hirsutum |  |
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| diphosphate | - |
Gossypium hirsutum | |
| phosphoenolpyruvate | at high concentration | Gossypium hirsutum | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.036 | - |
phosphoenolpyruvate | - |
Sorghum bicolor | |
| 1.2 | - |
CO2 | - |
Gossypium hirsutum | |
| 5 | - |
phosphoenolpyruvate | - |
Gossypium hirsutum | |
Natural Substrates/ Products (Substrates)
| Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| phosphate + phosphoenolpyruvate + CO2 | Sorghum bicolor | enzyme is involved in an oxaloacetate anaplerotic system | ? | - |
? | |
| phosphate + phosphoenolpyruvate + CO2 | Gossypium hirsutum | enzyme is involved in an oxaloacetate anaplerotic system | ? | - |
? | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Gossypium hirsutum | - |
- |
- |
| Sorghum bicolor | - |
- |
- |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| caryopsis | - |
Sorghum bicolor | - |
| seed | - |
Gossypium hirsutum | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| phosphate + phosphoenolpyruvate + CO2 | - |
Sorghum bicolor | diphosphate + oxaloacetate | - |
? | |
| phosphate + phosphoenolpyruvate + CO2 | - |
Gossypium hirsutum | diphosphate + oxaloacetate | - |
? | |
| phosphate + phosphoenolpyruvate + CO2 | enzyme is involved in an oxaloacetate anaplerotic system | Sorghum bicolor | ? | - |
? | |
| phosphate + phosphoenolpyruvate + CO2 | enzyme is involved in an oxaloacetate anaplerotic system | Gossypium hirsutum | ? | - |
? | |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 8.1 | - |
- |
Sorghum bicolor |
| 8.2 | - |
- |
Gossypium hirsutum |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 7.2 | 8.5 | 80% of maximal activity at pH 7.2 and at pH 8.5 | Sorghum bicolor |
| 7.4 | 8.2 | about 50% of maximal activity at pH 7.4 and at pH 8.2 | Gossypium hirsutum |
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