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Literature summary for 3.1.3.8 extracted from
- Immobilization of Aspergillus ficuum extracellular phytase on fractogel (1987), Biotechnol. Appl. Biochem., 9, 380-388.
No PubMed abstract available
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.135 | - |
myo-inositol hexakisphosphate | immobilized enzyme | Aspergillus ficuum |  |
| 1 | - |
myo-inositol hexakisphosphate | immobilized enzyme | Aspergillus ficuum | |
Localization
| Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|
| extracellular | - |
Aspergillus ficuum | - |
- |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Aspergillus ficuum | - |
- |
- |
Storage Stability
| Storage Stability | Organism |
|---|---|
| 45 days, no significant loss of activity | Aspergillus ficuum |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| myo-inositol hexakisphosphate + H2O | - |
Aspergillus ficuum | 1-L-myo-inositol 1,2,4,5,6-pentakisphosphate + myo-inositol-1,2,5,6 tetrakisphosphate + phosphate | - |
? | |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 65 | - |
immobilized enzyme | Aspergillus ficuum |
Temperature Range [°C]
| Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 35 | 70 | 30°C: about 45% of maximal activity, 70°C: about 55% of maximal activity | Aspergillus ficuum |
Temperature Stability [°C]
| Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|
| additional information | - |
immobilized enzyme has higher thermal stability as the untreated enzyme | Aspergillus ficuum |
| 70 | - |
30 min, 3.3% loss of activity | Aspergillus ficuum |
Turnover Number [1/s]
| Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| additional information | - |
additional information | turnover number of immobilized enzyme | Aspergillus ficuum |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 2.5 | - |
and a second optimum which is higher at pH 5.0 | Aspergillus ficuum |
| 5 | - |
and a second optimum which is lower at pH 2.5 | Aspergillus ficuum |
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Release 2023.1 (January 2023)
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