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Literature summary for 3.2.1.20 extracted from
- Purification and some properties of Saccharomyces logos alpha-glucosidase (1973), Agric. Biol. Chem., 37, 1823-1829.
No PubMed abstract available
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 270000 | - |
gel filtration | Saccharomyces logos |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Saccharomyces logos | - |
- |
- |
Posttranslational Modification
| Posttranslational Modification | Comment | Organism |
|---|---|---|
| glycoprotein | contains about 50% carbohydrate | Saccharomyces logos |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
| alpha-glucosidase I and II | Saccharomyces logos |
Specific Activity [micromol/min/mg]
| Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|
| 21.3 | - |
alpha-glucosidase I | Saccharomyces logos |
| 42.7 | - |
alpha-glucosidase II | Saccharomyces logos |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| maltose + H2O | - |
Saccharomyces logos | alpha-D-glucose + D-glucose | - |
? |  |
| phenyl alpha-D-glucoside + H2O | - |
Saccharomyces logos | phenol + alpha-D-glucose | - |
? | |
| sucrose + H2O | no activity | Saccharomyces logos | D-fructose + alpha-D-glucose | - |
? | |
| turanose + H2O | - |
Saccharomyces logos | alpha-D-glucose + D-fructose | - |
? | |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 40 | - |
- |
Saccharomyces logos |
Temperature Range [°C]
| Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 30 | 45 | 30°C: about 60% of maximal activity, 45°C: about 90% of maximal activity | Saccharomyces logos |
Temperature Stability [°C]
| Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 45 | - |
about 45% loss of activity | Saccharomyces logos |
| 50 | - |
pH 4.6, complete loss of activity | Saccharomyces logos |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 4.6 | 5 | - |
Saccharomyces logos |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 4 | 6.5 | pH 4.0: about 60% of maximal activity, pH 6.5: about 55% of maximal activity | Saccharomyces logos |
pH Stability
| pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|
| 3.6 | 6.6 | 27°C, 20 h, stable | Saccharomyces logos |
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Release 2023.1 (January 2023)
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