Literature summary for 2.4.1.19 extracted from
Vassileva, A.; Atanasova, N.; Ivanova, V.; Dhulster, P.; Tonkova, A.
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
Application |
Comment |
Organism |
synthesis |
the enzyme is of interest for industrial cyclodextrin production |
Niallia circulans |
Metals/Ions
Metals/Ions |
Comment |
Organism |
Structure |
CaCl2 |
activates at 1 mM |
Niallia circulans |
|
CoCl2 |
activates at 4 mM |
Niallia circulans |
|
Organism
Organism |
UniProt |
Comment |
Textmining |
Niallia circulans |
P30920 |
strain ATCC 21783 |
- |
Purification (Commentary)
Purification (Comment) |
Organism |
native enzyme 13.7fold from strain ATCC 21783 by ultrafiltration and consecutive starch adsorption |
Niallia circulans |
Substrates and Products (Substrate)
Substrates |
Comment Substrates |
Organism |
Products |
Comment (Products) |
Rev. |
Reac. |
additional information |
conversion of starch into beta- and gamma-cyclodextrins in a ratio 73:27 |
Niallia circulans |
? |
- |
? |
|
Synonyms
Synonyms |
Comment |
Organism |
CGTase |
- |
Niallia circulans |
Temperature Optimum [°C]
Temperature Optimum [°C] |
Temperature Optimum Maximum [°C] |
Comment |
Organism |
65 |
- |
- |
Niallia circulans |
Temperature Stability [°C]
Temperature Stability Minimum [°C] |
Temperature Stability Maximum [°C] |
Comment |
Organism |
70 |
- |
purified enzyme, 30 min, 64% remaining activity |
Niallia circulans |
pH Optimum
pH Optimum Minimum |
pH Optimum Maximum |
Comment |
Organism |
6 |
- |
two maxima at pH 6.0 and pH 8.6 |
Niallia circulans |
8.6 |
- |
two maxima at pH 6.0 and pH 8.6 |
Niallia circulans |
pH Stability
pH Stability |
pH Stability Maximum |
Comment |
Organism |
5 |
11 |
75% of maximal activity within this range |
Niallia circulans |