Cloned (Comment) | Organism |
---|---|
expression of the enzyme in three inducible yeast systems: Saccharomyces cerevisiae (pYES2), Schizosaccharomyces pombe (pDS472a), and Pichia pastoris (pPICZalphaA), and one constitutive system: Pichia pastoris (pGAPTalphaA). During 8-day batch fermentation in shaking flasks, the inducible Pichia system produces the highest activity whereas the Schizosaccharomyces pombe system produces the lowest activity. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.3 | - |
myo-inositol hexakisphosphate | 37°C, pH 3.5, enzyme expressed in Schizosaccharomyces pombe. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli | |
0.7 | - |
myo-inositol hexakisphosphate | 37°C, pH 3.5, enzyme expressed in Pichia pastoris (pPICZalphaA). The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli | |
0.8 | - |
myo-inositol hexakisphosphate | 37°C, pH 3.5, enzyme expressed in Pichia pastoris (pGAPZalphaA). The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli | |
1.2 | - |
myo-inositol hexakisphosphate | 37°C, pH 3.5, enzyme expressed in Saccharomyces cerevisiae. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli | |
1.5 | - |
myo-inositol hexakisphosphate | 37°C, pH 5.5, enzyme expressed in Schizosaccharomyces pombe. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli | |
1.8 | - |
myo-inositol hexakisphosphate | 37°C, pH 5.5, enzyme expressed in Pichia pastoris (pGAPZalphaA) or Pichia pastoris (pPICZalphaA). The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli | |
2.1 | - |
myo-inositol hexakisphosphate | 37°C, pH 5.5, enzyme expressed in Saccharomyces cerevisiae. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli |
Localization | Comment | Organism | GeneOntology No. | Textmining |
---|---|---|---|---|
extracellular | the enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli | - |
- |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Escherichia coli | - |
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. | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
myo-inositol hexakisphosphate + H2O | - |
Escherichia coli | ? + phosphate | - |
? |
Synonyms | Comment | Organism |
---|---|---|
AppA2 phytase | the enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
55 | - |
recombinant enzyme. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli |
Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
---|---|---|---|
37 | 65 | 37°C: about 35% of maximal activity, 65°C: 60-80% of maximal activity, recombinant enzyme from different expression systems. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli |
Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
---|---|---|---|
55 | - |
10 min, stable, recombinant enzyme from different expression systems. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli |
65 | - |
10 min, 55-70% loss of activity, recombinant enzyme from different expression systems. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli |
75 | - |
10 min, 10-20% loss of activity, recombinant enzyme from different expression systems. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
3.5 | - |
recombinant enzyme. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
2 | 5.5 | pH 2.0: about 70% of maximal activity, pH 5.5: 40-50% of maximal activity enzyme, recombinant enzyme from different expression systems. The enzyme may be a 3-phytase, EC 3.1.3.8, or a 6-phytase, EC 3.1.3.26. The product of the hydrolysis of myo-inositol hexakisphosphate i.e. myo-inositol 1,2,3,4,5-pentakisphosphate or myo-inositol 1,3,4,5,6-pentakisphosphate has not been identified | Escherichia coli |