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Literature summary for 3.2.1.20 extracted from
- Three forms of alpha-glucosidase from suspension-cultured rice cells (1985), Agric. Biol. Chem., 49, 3383-3390.
No PubMed abstract available
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| castanospermine | competitive | Oryza sativa |  |
| Hg2+ | - |
Oryza sativa | |
KM Value [mM]
| KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
|---|---|---|---|---|---|
| 1.848 | - |
maltose | alpha-glucosidase I and III | Oryza sativa | |
| 2.523 | - |
maltose | alpha-glucosidase II | Oryza sativa | |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 58000 | - |
alpha-glucosidase III, gel filtration | Oryza sativa |
| 84000 | - |
alpha-glucosidase II, gel filtration | Oryza sativa |
| 96000 | - |
alpha-glucosidase III, gel filtration | Oryza sativa |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Oryza sativa | - |
Norin No. 16 | - |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
| alpha-glucosidase I, II and III | Oryza sativa |
Source Tissue
| Source Tissue | Comment | Organism | Textmining |
|---|---|---|---|
| cell suspension culture | - |
Oryza sativa | - |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| amylose + H2O | - |
Oryza sativa | alpha-D-glucose | - |
? | |
| isomaltose + H2O | - |
Oryza sativa | 2 alpha-D-glucose | - |
? | |
| maltose | - |
Oryza sativa | panose + ? | alpha-glucosyltransfer product | ? | |
| maltose + H2O | - |
Oryza sativa | alpha-D-glucose + D-glucose | - |
? | |
| maltotetraose + H2O | - |
Oryza sativa | alpha-D-glucose | - |
? | |
| maltotriose + H2O | - |
Oryza sativa | maltose + D-glucose | - |
? | |
| starch + H2O | soluble | Oryza sativa | alpha-D-glucose | - |
? | |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 50 | 55 | alpha-glucosidase II and III | Oryza sativa |
| 55 | - |
alpha-glucosidase I | Oryza sativa |
Temperature Stability [°C]
| Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 45 | - |
pH 4.5, 15 min, alpha-glucosidase I and III, stable up to | Oryza sativa |
| 55 | - |
pH 4.5, 15 min, alpha-glucosidase II, stable up to | Oryza sativa |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 4 | - |
alpha-glucosidase II | Oryza sativa |
| 4 | 4.5 | alpha-glucosidase I | Oryza sativa |
pH Stability
| pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|
| 4 | 7 | 30°C, 20 h, stable | Oryza sativa |
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Release 2023.1 (January 2023)
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