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Literature summary for 3.2.1.23 extracted from
- Characterization of galactosidases from Aspergillus niger: purification of a novel alpha-galactosidase activity (1998), Enzyme Microb. Technol., 22, 383-390.
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Aspergillus niger | - |
- |
- |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
- |
Aspergillus niger |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|
Specific Activity [micromol/min/mg]
| Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|
| 33.3 | - |
- |
Aspergillus niger |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| lactose + H2O | - |
Aspergillus niger | D-glucose + D-galactose | - |
? |  |
| p-nitrophenyl-beta-D-galactoside + H2O | - |
Aspergillus niger | p-nitrophenol + beta-D-galactose | - |
? | |
| pectic galactan + H2O | - |
Aspergillus niger | ? | - |
? | |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 60 | 65 | - |
Aspergillus niger |
Temperature Stability [°C]
| Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 55 | - |
8 h, stable up to | Aspergillus niger |
| 65 | - |
4 h, 60% of the activity remains | Aspergillus niger |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 4 | - |
- |
Aspergillus niger |
pH Stability
| pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|
| 3 | 5 | 30°C, 20 h, stable | Aspergillus niger |
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Release 2023.1 (January 2023)
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