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Literature summary for 2.4.1.19 extracted from

  • Pishtiyski, I.; Popova, V.; Zhekova, B.
    Characterization of cyclodextrin glucanotransferase produced by Bacillus megaterium (2008), Appl. Biochem. Biotechnol., 144, 263-272.
    View publication on PubMed

Inhibitors

Inhibitors Comment Organism Structure
Ag+
-
Priestia megaterium
EDTA
-
Priestia megaterium
Hg+
-
Priestia megaterium
Zn2+
-
Priestia megaterium

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information kinetics Priestia megaterium

Localization

Localization Comment Organism GeneOntology No. Textmining
extracellular
-
Priestia megaterium
-
-

Metals/Ions

Metals/Ions Comment Organism Structure
Co2+ activates Priestia megaterium
Cu2+ activates Priestia megaterium
Mg2+ activates Priestia megaterium
Mn2+ activates Priestia megaterium
additional information enzyme activity is not affected by Ca2+, Na+, K+, Fe3+, ICH2COOH, and SDS at low concentration Priestia megaterium
Sr2+ activates Priestia megaterium

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
68200
-
gel filtration Priestia megaterium
73400
-
1 * 73400, SDS-PAGE Priestia megaterium
75000
-
about, mass spectrometry Priestia megaterium

Organism

Organism UniProt Comment Textmining
Priestia megaterium
-
-
-

Purification (Commentary)

Purification (Comment) Organism
native enzyme by adsorption on starch, ion exchange chromatography, and gel filtration Priestia megaterium

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
60.39
-
purified enzyme Priestia megaterium

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
additional information the enzyme preforms cyclization of different alpha-1,4-glucans, e.g. soluble potato starch, or amylopectin, and amylose, the enzyme forms preferably beta-cyclodextrins, the ratio of products is 27:68:5 for alpha, beta, and gamma cyclodextrins Priestia megaterium ?
-
?

Subunits

Subunits Comment Organism
monomer 1 * 73400, SDS-PAGE Priestia megaterium

Synonyms

Synonyms Comment Organism
CGTase
-
Priestia megaterium

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
60
-
-
Priestia megaterium

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
20 75 activity range Priestia megaterium

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
30
-
stable Priestia megaterium

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.2
-
-
Priestia megaterium

pH Range

pH Minimum pH Maximum Comment Organism
4 11 activity range, about 60% of maximal activity at pH 4.5-9.0 Priestia megaterium

pH Stability

pH Stability pH Stability Maximum Comment Organism
6 10.5 stable Priestia megaterium