Organism | UniProt | Comment | Textmining |
---|---|---|---|
Aspergillus niger | - |
- |
- |
Aspergillus terreus | - |
- |
- |
Aspergillus terreus 9A1 | - |
- |
- |
Thermothelomyces heterothallicus | - |
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. |
---|---|---|---|---|---|---|
4-nitrophenyl phosphate + H2O | - |
Aspergillus niger | 4-nitrophenol + phosphate | - |
? | |
4-nitrophenyl phosphate + H2O | - |
Aspergillus terreus | 4-nitrophenol + phosphate | - |
? | |
4-nitrophenyl phosphate + H2O | - |
Aspergillus terreus 9A1 | 4-nitrophenol + phosphate | - |
? | |
myo-inositol hexakisphosphate + H2O | - |
Aspergillus niger | 1-L-myo-inositol 1,2,4,5,6-pentakisphosphate + myo-inositol-1,2,5,6 tetrakisphosphate + phosphate | - |
? | |
myo-inositol hexakisphosphate + H2O | - |
Aspergillus terreus | 1-L-myo-inositol 1,2,4,5,6-pentakisphosphate + myo-inositol-1,2,5,6 tetrakisphosphate + phosphate | - |
? | |
myo-inositol hexakisphosphate + H2O | - |
Thermothelomyces heterothallicus | 1-L-myo-inositol 1,2,4,5,6-pentakisphosphate + myo-inositol-1,2,5,6 tetrakisphosphate + phosphate | - |
? | |
myo-inositol hexakisphosphate + H2O | - |
Aspergillus terreus 9A1 | 1-L-myo-inositol 1,2,4,5,6-pentakisphosphate + myo-inositol-1,2,5,6 tetrakisphosphate + phosphate | - |
? |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
2.5 | 5 | hydrolysis of myo-inositol hexakisphosphate | Aspergillus niger |
3 | 4.5 | hydrolysis of 4-nitrophenyl phosphate | Aspergillus terreus |
3.5 | 4.5 | hydrolysis of 4-nitrophenyl phosphate | Thermothelomyces heterothallicus |
5.5 | - |
- |
Aspergillus niger |
5.5 | - |
hydrolysis of myo-inositol hexakisphosphate | Aspergillus terreus |
5.5 | - |
hydrolysis of myo-inositol hexakisphosphate | Thermothelomyces heterothallicus |
pH Minimum | pH Maximum | Comment | Organism |
---|---|---|---|
2 | 5.7 | pH 2.0: about 10% of maximal activity, pH 5.7: about 40% of maximal activity, hydrolysis of myo-inositol hexakisphosphate | Aspergillus niger |
4.5 | 7 | pH 4.5: about 70% of maximal activity, pH 7.0: about 45% of maximal activity, hydrolysis of myo-inositol hexakisphosphate | Thermothelomyces heterothallicus |
4.5 | 6.5 | pH 4.5: about 40% of maximal activity, pH 6.5: about 70% of maximal activity, hydrolysis of myo-inositol hexakisphosphate | Aspergillus terreus |