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Literature summary extracted from
- Isolation and characterization of alpha-glucosidase from Aspergillus niger (1992), J. Chromatogr., 593, 125-131.
KM Value [mM]
| EC Number | KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|---|
| 3.2.1.20 | 7.87 | - |
maltose | - |
Aspergillus niger |  |
Molecular Weight [Da]
| EC Number | Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.20 | 89000 | - |
x * 89000, glucoamylase, SDS-PAGE | Aspergillus niger |
| 3.2.1.20 | 131000 | - |
x * 131000, maltase, SDS-PAGE | Aspergillus niger |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 3.2.1.20 | Aspergillus niger | - |
- |
- |
| 3.2.1.20 | Penicillium brevicompactum | - |
- |
- |
| 3.2.1.20 | Penicillium citrinum | - |
- |
- |
| 3.2.1.20 | Saccharomyces cerevisiae | - |
type Malaga and type Palestina | - |
| 3.2.1.20 | Schizosaccharomyces pombe | - |
- |
- |
| 3.2.1.20 | Wickerhamomyces anomalus | - |
- |
- |
Source Tissue
| EC Number | Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|---|
| 3.2.1.20 | culture medium | - |
Saccharomyces cerevisiae | - |
| 3.2.1.20 | culture medium | - |
Aspergillus niger | - |
| 3.2.1.20 | culture medium | - |
Schizosaccharomyces pombe | - |
| 3.2.1.20 | culture medium | - |
Penicillium citrinum | - |
| 3.2.1.20 | culture medium | - |
Wickerhamomyces anomalus | - |
| 3.2.1.20 | culture medium | - |
Penicillium brevicompactum | - |
| 3.2.1.20 | liver | - |
Aspergillus niger | - |
Storage Stability
| EC Number | Storage Stability | Organism |
|---|---|---|
| 3.2.1.20 | -20°C, 15 days, 41% loss of maltase activity, 21% loss of glucoamylase activity | Aspergillus niger |
| 3.2.1.20 | 4°C, 15 days, 21% loss of maltase activity, 46% loss of glucoamylase activity | Aspergillus niger |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 3.2.1.20 | maltose + H2O | - |
Saccharomyces cerevisiae | alpha-D-glucose + D-glucose | - |
? | |
| 3.2.1.20 | maltose + H2O | - |
Aspergillus niger | alpha-D-glucose + D-glucose | - |
? | |
| 3.2.1.20 | starch + H2O | - |
Aspergillus niger | alpha-D-glucose | - |
? | |
Subunits
| EC Number | Subunits | Comment | Organism |
|---|---|---|---|
| 3.2.1.20 | ? | x * 131000, maltase, SDS-PAGE | Aspergillus niger |
| 3.2.1.20 | ? | x * 89000, glucoamylase, SDS-PAGE | Aspergillus niger |
Temperature Optimum [°C]
| EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.20 | 40 | - |
maltase activity | Aspergillus niger |
| 3.2.1.20 | 60 | - |
glucoamylase | Aspergillus niger |
Temperature Range [°C]
| EC Number | Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.20 | 5 | 50 | 5°C: about 50% of maximal activity, 50°C: about 20% of maximal activity, maltase | Aspergillus niger |
| 3.2.1.20 | 5 | 80 | 5°C: about 50% of maximal activity, 80°C: about 40% of maximal activity, glucoamylase | Aspergillus niger |
pH Range
| EC Number | pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|---|
| 3.2.1.20 | 3 | 7 | pH 3.0: about 30% of maximal activity, pH 7.0: about 80% of maximal activity | Aspergillus niger |
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