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Literature summary for 3.2.1.54 extracted from

  • Yoshida, A.; Iwasaki, Y.; Akiba, T.; Horikoshi, K.
    Purification and properties of cyclomaltodextrinase from alkalophilic Bacillus sp. (1991), J. Ferment. Bioeng., 71, 226-229.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
Ag+
-
Niallia circulans
Cu2+
-
Niallia circulans
dodecylbenzenesulfonate 0.1% Niallia circulans
Hg2+
-
Niallia circulans
p-chloromercuribenzoate
-
Niallia circulans
SDS 0.1% Niallia circulans

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.8
-
maltoheptaose
-
Niallia circulans
0.8
-
gamma-cyclodextrin
-
Niallia circulans
1.2
-
maltopentaose
-
Niallia circulans
1.3
-
maltohexaose
-
Niallia circulans
1.8
-
beta-cyclodextrin
-
Niallia circulans
3.2
-
alpha-cyclodextrin
-
Niallia circulans
7.4
-
maltotetraose
-
Niallia circulans
12.5
-
maltotriose
-
Niallia circulans

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
67000
-
2 * 67000, molecular weight estimated to be 126000 by gel filtration, 67000 by SDS-PAGE Niallia circulans
126000
-
MW estimation, gel filtration Niallia circulans

Organism

Organism UniProt Comment Textmining
Niallia circulans
-
-
-

Purification (Commentary)

Purification (Comment) Organism
purified 252fold Niallia circulans

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
14.8
-
gel filtration Niallia circulans

Storage Stability

Storage Stability Organism
4°C, one month without any loss of activity Niallia circulans

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
alpha-cyclodextrin + H2O
-
Niallia circulans ?
-
?
beta-cyclodextrin + H2O
-
Niallia circulans maltose + maltotriose + maltotetraose + maltopentaose + maltoheptaose + glucose
-
?
cyclomaltodextrin + H2O
-
Niallia circulans maltodextrin maltooligosaccharides ?
gamma-cyclodextrin + H2O
-
Niallia circulans ?
-
?
maltodextrins + H2O
-
Niallia circulans maltose + glucose
-
?
maltoheptaose + H2O
-
Niallia circulans D-glucose + maltose + ?
-
?
maltohexaose + H2O
-
Niallia circulans maltotetraose + maltose
-
?
maltopentaose + H2O
-
Niallia circulans maltose + maltotriose
-
?
maltotetraose + H2O
-
Niallia circulans 2 maltose
-
?
maltotriose + H2O
-
Niallia circulans ?
-
?

Subunits

Subunits Comment Organism
dimer 2 * 67000, molecular weight estimated to be 126000 by gel filtration, 67000 by SDS-PAGE Niallia circulans

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
50
-
-
Niallia circulans

Temperature Range [°C]

Temperature Minimum [°C] Temperature Maximum [°C] Comment Organism
30 55 no activity at 60°C Niallia circulans

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6
-
-
Niallia circulans

pH Range

pH Minimum pH Maximum Comment Organism
5 8
-
Niallia circulans

pH Stability

pH Stability pH Stability Maximum Comment Organism
6 10 40°C, 30 min stable Niallia circulans