Any feedback?
Literature summary for 3.1.3.8 extracted from
- Purification and general properties of extracellular phytase from Aspergillus flaviceps (1987), Zentralbl. Mikrobiol., 142, 397-402.
No PubMed abstract available
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| 2,4-dinitrophenol | - |
Aspergillus flavipes |  |
| arsenate | - |
Aspergillus flavipes | |
| arsenite | - |
Aspergillus flavipes | |
| azide | - |
Aspergillus flavipes | |
| EDTA | - |
Aspergillus flavipes | |
| F- | - |
Aspergillus flavipes | |
| Hg2+ | - |
Aspergillus flavipes | |
| iodoacetic acid | - |
Aspergillus flavipes | |
| phloridzin | - |
Aspergillus flavipes | |
| Tartrate | - |
Aspergillus flavipes | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.63 | - |
myo-inositol hexakisphosphate | - |
Aspergillus flavipes | |
Localization
| Localization | Comment | Organism | GeneOntology No. | Textmining |
|---|---|---|---|---|
| extracellular | - |
Aspergillus flavipes | - |
- |
Metals/Ions
| Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|
| Ca2+ | activates | Aspergillus flavipes | |
| Mn2+ | activates | Aspergillus flavipes | |
| Zn2+ | activates | Aspergillus flavipes | |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Aspergillus flavipes | - |
The enzyme may be a 3-phytase (EC 3.1.3.8), or a 4-phytase (synonym 6-phytase, EC 3.1.3.26). The product of the hydrolysis of myo-inositol hexakisphosphate to 1D-myo-inositol 1,2,4,5,6-pentakisphosphate or alternatively 1D-myo-inositol 1,2,3,5,6-pentakisphosphate has not been identified. | - |
Posttranslational Modification
| Posttranslational Modification | Comment | Organism |
|---|---|---|
| no modification | no carbohydrate and phosphorus | Aspergillus flavipes |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
- |
Aspergillus flavipes |
Specific Activity [micromol/min/mg]
| Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|
| additional information | - |
- |
Aspergillus flavipes |
Storage Stability
| Storage Stability | Organism |
|---|---|
| 4°C, 0.05 M Tris-HCl, pH 8.2, stable for 8 weeks | Aspergillus flavipes |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| myo-inositol hexakisphosphate + H2O | - |
Aspergillus flavipes | 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 |
|---|---|---|---|
| 37 | - |
- |
Aspergillus flavipes |
Temperature Range [°C]
| Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 30 | 45 | 30°C: about 55% of maximal activity, 45°C: about 35% of maximal activity | Aspergillus flavipes |
Temperature Stability [°C]
| Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 45 | - |
20 min, about 50% loss of activity, 60 min, 84.4% loss of activity | Aspergillus flavipes |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 5.6 | - |
- |
Aspergillus flavipes |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 4 | 8 | pH 4.0: about 50% of maximal activity, pH 8.0: about 25% of maximal activity | Aspergillus flavipes |
pH Stability
| pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|
| 5 | 6.8 | 37°C, 10 min, stable | Aspergillus flavipes |
Use of this online version of BRENDA is free under the CC BY 4.0 license. See terms of use for full details.
Release 2023.1 (January 2023)
Legal
Curated at
Member of
