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Literature summary for 3.2.1.3 extracted from
- Purification and properties of an alpha-glucosidase (glucoamylase) in sugar beet seed (1978), Agric. Biol. Chem., 42, 241-245.
No PubMed abstract available
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| additional information | - |
additional information | 6.8 mg/ml for maltose, 1.9 mg/ml for soluble starch | Beta vulgaris |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 91000 | - |
x * 91000, SDS-PAGE | Beta vulgaris |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Beta vulgaris | - |
- |
- |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
- |
Beta vulgaris |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| seed | - |
Beta vulgaris | - |
Specific Activity [micromol/min/mg]
| Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|
| 20 | - |
- |
Beta vulgaris |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| maltose + H2O | - |
Beta vulgaris | 2 glucose | - |
? |  |
| starch + H2O | soluble | Beta vulgaris | glucose + ? | - |
? | |
Subunits
| Subunits | Comment | Organism |
|---|---|---|
| ? | x * 91000, SDS-PAGE | Beta vulgaris |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 65 | - |
- |
Beta vulgaris |
Temperature Stability [°C]
| Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 65 | - |
37°C, 10 min, stable up to | Beta vulgaris |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 4.1 | 4.7 | - |
Beta vulgaris |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 2.3 | 6.5 | pH 2.3: about 20% of maximal maltase activity, about 50% of glucoamylase activity, pH 6.5: about 25% of maltase activity, about 35% of glucoamylase activity | Beta vulgaris |
pH Stability
| pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|
| 3 | 8 | 7°C, 20 h, stable | Beta vulgaris |
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Release 2023.1 (January 2023)
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