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Literature summary for 3.2.1.1 extracted from

  • Takasaki, Y.
    An amylase producing maltotetraose and maltopentaose from Bacillus circulans (1983), Agric. Biol. Chem., 47, 2193-2199.
No PubMed abstract available

Inhibitors

Inhibitors Comment Organism Structure
Ag+ 5 mM AgNO3, 95% inhibition Niallia circulans
Ba2+ 5 mM BaCl2, 22% inhibition Niallia circulans
Ca2+ 5 mM CaCl2, 21% inhibition Niallia circulans
Co2+ 5 mM CoCl2, 91% inhibition Niallia circulans
Cu2+ 5 mM CuSO4, complete inhibition Niallia circulans
Fe2+ 5 mM FeSO4, 91% inhibition Niallia circulans
Hg2+ 5 mM HgCl2, 99% inhibition Niallia circulans
Mg2+ 5 mM MgSO4, 18% inhibition Niallia circulans
Mn2+ 5 mM MnCl2, 73% inhibition Niallia circulans
Ni2+ 5 mM NiCl2, 91% inhibition Niallia circulans
Sr2+ 5 mM SrCl2, 28% inhibition Niallia circulans
Zn2+ 5 mM ZnSO4, complete inhibition Niallia circulans

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
45000
-
gel filtration Niallia circulans

Organism

Organism UniProt Comment Textmining
Niallia circulans
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Niallia circulans

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
additional information
-
-
Niallia circulans

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
starch + H2O
-
Niallia circulans additional information maltotetraose + maltopentaose are the main products ?

Temperature Optimum [°C]

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

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
50
-
pH 7.0, 10 min, stable Niallia circulans

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
-
Niallia circulans

pH Range

pH Minimum pH Maximum Comment Organism
6 8.3 pH 6.0: about 70% of maximal activity, pH 8.3: about 60% of maximal activity Niallia circulans

pH Stability

pH Stability pH Stability Maximum Comment Organism
6 9 30°C, 3 h, stable Niallia circulans