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Literature summary extracted from
- Characterisation of cyclodextrin glucanotransferase from Bacillus circulans ATCC 21783 in terms of cyclodextrin production (2007), Ann. Microbiol., 57, 609-615.
No PubMed abstract available
Application
| EC Number | Application | Comment | Organism |
|---|---|---|---|
| 2.4.1.19 | synthesis | the enzyme is of interest for industrial cyclodextrin production | Niallia circulans |
Metals/Ions
| EC Number | Metals/Ions | Comment | Organism | Structure |
|---|---|---|---|---|
| 2.4.1.19 | CaCl2 | activates at 1 mM | Niallia circulans |  |
| 2.4.1.19 | CoCl2 | activates at 4 mM | Niallia circulans | |
Organism
| EC Number | Organism | UniProt | Comment | Textmining |
|---|---|---|---|---|
| 2.4.1.19 | Niallia circulans | P30920 | strain ATCC 21783 | - |
Purification (Commentary)
| EC Number | Purification (Comment) | Organism |
|---|---|---|
| 2.4.1.19 | native enzyme 13.7fold from strain ATCC 21783 by ultrafiltration and consecutive starch adsorption | Niallia circulans |
Substrates and Products (Substrate)
| EC Number | Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
|---|---|---|---|---|---|---|---|
| 2.4.1.19 | additional information | conversion of starch into beta- and gamma-cyclodextrins in a ratio 73:27 | Niallia circulans | ? | - |
? | |
Synonyms
| EC Number | Synonyms | Comment | Organism |
|---|---|---|---|
| 2.4.1.19 | CGTase | - |
Niallia circulans |
Temperature Optimum [°C]
| EC Number | Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 2.4.1.19 | 65 | - |
- |
Niallia circulans |
Temperature Stability [°C]
| EC Number | Temperature Stability Minimum [°C] | Temperature Stability Maximum [°C] | Comment | Organism |
|---|---|---|---|---|
| 2.4.1.19 | 70 | - |
purified enzyme, 30 min, 64% remaining activity | Niallia circulans |
pH Optimum
| EC Number | pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
|---|---|---|---|---|
| 2.4.1.19 | 6 | - |
two maxima at pH 6.0 and pH 8.6 | Niallia circulans |
| 2.4.1.19 | 8.6 | - |
two maxima at pH 6.0 and pH 8.6 | Niallia circulans |
pH Stability
| EC Number | pH Stability | pH Stability Maximum | Comment | Organism |
|---|---|---|---|---|
| 2.4.1.19 | 5 | 11 | 75% of maximal activity within this range | Niallia circulans |
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Release 2023.1 (January 2023)
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