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Literature summary for 4.1.1.31 extracted from
- Evolution of C4 phosphoenolpyruvate carboxylase in the genus Alternanthera: gene families and the enzymatic characteristics of the C4 isozyme and its orthologs in C3 and C3/C4 Alternantheras (2006), Planta, 223, 359-368.
Activating Compound
| Activating Compound | Comment | Organism | Structure |
|---|---|---|---|
| D-glucose 6-phosphate | - |
Alternanthera pungens |  |
| D-glucose 6-phosphate | - |
Alternanthera ficoidea | |
| D-glucose 6-phosphate | - |
Alternanthera sessilis | |
Cloned(Commentary)
| Cloned (Comment) | Organism |
|---|---|
| expressed in Escherichia coli | Alternanthera pungens |
| expressed in Escherichia coli | Alternanthera ficoidea |
| expressed in Escherichia coli | Alternanthera sessilis |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| additional information | - |
additional information | K0.5 (phosphoenolpyruvate) (without 5 mM glucose 6-phosphate): 0.036 mM, K0.5 (phosphoenolpyruvate) (+ 5 mM glucose 6-phosphate): 0.013 mM | Alternanthera sessilis | |
| additional information | - |
additional information | K0.5 (phosphoenolpyruvate) (without 5 mM glucose 6-phosphate): 0.042 mM, K0.5 (phosphoenolpyruvate) (+ 5 mM glucose 6-phosphate): 0.025 mM | Alternanthera ficoidea | |
| additional information | - |
additional information | K0.5 (phosphoenolpyruvate) (without 5 mM glucose 6-phosphate): 0.157 mM, K0.5 (phosphoenolpyruvate) (+ 5 mM glucose 6-phosphate): 0.02 mM | Alternanthera pungens |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Alternanthera ficoidea | Q1XAT8 | - |
- |
| Alternanthera pungens | Q1XAT9 | - |
- |
| Alternanthera sessilis | Q1XAT7 | - |
- |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| leaf | strong expression detected by Northern blot-analysis | Alternanthera pungens | - |
| leaf | weak expression detected by Northern blot-analysis | Alternanthera ficoidea | - |
| leaf | weak expression detected by Northern blot-analysis | Alternanthera sessilis | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| phosphoenolpyruvate + CO2 | - |
Alternanthera pungens | phosphate + oxaloacetate | - |
? | |
| phosphoenolpyruvate + CO2 | - |
Alternanthera ficoidea | phosphate + oxaloacetate | - |
? | |
| phosphoenolpyruvate + CO2 | - |
Alternanthera sessilis | phosphate + oxaloacetate | - |
? | |
Synonyms
| Synonyms | Comment | Organism |
|---|---|---|
| PEPCase | - |
Alternanthera pungens |
| PEPCase | - |
Alternanthera ficoidea |
| PEPCase | - |
Alternanthera sessilis |
Turnover Number [1/s]
| Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 6.1 | - |
phosphoenolpyruvate | without 5 mM glucose 6-phosphate | Alternanthera sessilis | |
| 16 | - |
phosphoenolpyruvate | + 5 mM glucose 6-phosphate | Alternanthera sessilis | |
| 33 | - |
phosphoenolpyruvate | + 5 mM D-glucose 6-phosphate | Alternanthera ficoidea | |
| 33 | - |
phosphoenolpyruvate | without 5 mM D-glucose 6-phosphate | Alternanthera ficoidea | |
| 38 | - |
phosphoenolpyruvate | + 5 mM D-glucose 6-phosphate | Alternanthera pungens | |
| 38 | - |
phosphoenolpyruvate | without 5 mM D-glucose 6-phosphate | Alternanthera pungens | |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 8 | - |
assay at | Alternanthera pungens |
| 8 | - |
assay at | Alternanthera ficoidea |
| 8 | - |
assay at | Alternanthera sessilis |
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