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Literature summary for 3.2.1.26 extracted from
- Purification and characterization of invertase from Aspergillus niger (1995), Curr. Microbiol., 31, 80-83.
No PubMed abstract available
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| Co2+ | - |
Aspergillus niger |  |
| Cu2+ | - |
Aspergillus niger | |
| Hg2+ | - |
Aspergillus niger | |
| K+ | - |
Aspergillus niger | |
| Mg2+ | - |
Aspergillus niger | |
| Na+ | - |
Aspergillus niger | |
| NO3- | - |
Aspergillus niger | |
| PCMB | 6 mM, complete inhibition | Aspergillus niger | |
| phosphate | - |
Aspergillus niger | |
| SO42- | - |
Aspergillus niger | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 0.0625 | - |
sucrose | - |
Aspergillus niger | |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 47000 | - |
2 * 47000, SDS-PAGE | Aspergillus niger |
| 95000 | - |
gel filtration | Aspergillus niger |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Aspergillus niger | - |
- |
- |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
- |
Aspergillus niger |
Specific Activity [micromol/min/mg]
| Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|
| 96 | - |
- |
Aspergillus niger |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| raffinose + H2O | - |
Aspergillus niger | fructose + melibiose | - |
? | |
| stachyose + H2O | - |
Aspergillus niger | ? | - |
? | |
| sucrose + H2O | - |
Aspergillus niger | D-fructose + D-glucose | - |
? | |
Subunits
| Subunits | Comment | Organism |
|---|---|---|
| dimer | 2 * 47000, SDS-PAGE | Aspergillus niger |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 60 | - |
- |
Aspergillus niger |
Temperature Range [°C]
| Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 40 | 75 | about 35% of maximal activity at 40°C and at 75°C | Aspergillus niger |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 4 | 7 | pH 4.0: about 60% of maximal activity, pH 7.0: about 25% of maximal activity | Aspergillus niger |
| 5 | - |
- |
Aspergillus niger |
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