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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