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Literature summary for 3.2.1.2 extracted from
- Purification and enzymatic properties of beta-amylase and pullulanase from Bacillus cereus var. mycoides (1976), Agric. Biol. Chem., 40, 1523-1530.
No PubMed abstract available
Inhibitors
| Inhibitors | Comment | Organism | Structure |
|---|---|---|---|
| Ag2+ | - |
Bacillus cereus |  |
| Cu2+ | - |
Bacillus cereus | |
| Fe2+ | - |
Bacillus cereus | |
| Hg2+ | HgCl2 | Bacillus cereus | |
| PCMB | cysteine reactivates | Bacillus cereus | |
Molecular Weight [Da]
| Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
|---|---|---|---|
| 35000 | - |
gel filtration | Bacillus cereus |
Organism
| Organism | UniProt | Comment | Textmining |
|---|---|---|---|
| Bacillus cereus | - |
var. mycoides | - |
Purification (Commentary)
| Purification (Comment) | Organism |
|---|---|
- |
Bacillus cereus |
Specific Activity [micromol/min/mg]
| Specific Activity Minimum [µmol/min/mg] | Specific Activity Maximum [µmol/min/mg] | Comment | Organism |
|---|---|---|---|
| additional information | - |
- |
Bacillus cereus |
Substrates and Products (Substrate)
| Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|
| amylopectin + H2O | - |
Bacillus cereus | beta-maltose + ? | - |
? | |
| amylose + H2O | - |
Bacillus cereus | beta-maltose | - |
? | |
| glycogen + H2O | - |
Bacillus cereus | beta-maltose | - |
? | |
| starch + H2O | - |
Bacillus cereus | maltose + ? | - |
? | |
Temperature Optimum [°C]
| Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 50 | - |
- |
Bacillus cereus |
Temperature Range [°C]
| Temperature Minimum [°C] | Temperature Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 28 | 61 | 28°C: about 40% of maximal activity, 61°C: about 30% of maximal activity | Bacillus cereus |
Temperature Stability [°C]
| Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|
| 50 | - |
10 min, stable below | Bacillus cereus |
pH Optimum
| pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|
| 7 | - |
- |
Bacillus cereus |
pH Range
| pH Minimum | pH Maximum | Comment | Organism |
|---|---|---|---|
| 4.5 | 8.5 | pH 4.5: about 40% of maximal activity, pH 8.5: about 60% of maximal activity | Bacillus cereus |
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