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Literature summary for 3.2.1.1 extracted from

  • Ogasahara, K.; Imanishi, A.; Isemura, T.
    Studies on thermophilic alpha-amylase from Bacillus stearothermophilus. I. Some general and physico-chemical properties of thermophilic alpha-amylase (1970), J. Biochem., 67, 65-75.
    View publication on PubMed

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ contains one gatom of Ca2+ per mol of enzyme Geobacillus stearothermophilus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
48000
-
equilibrium sedimentation Geobacillus stearothermophilus

Organism

Organism UniProt Comment Textmining
Geobacillus stearothermophilus
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Donk, strain BS-1
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
amylose + H2O
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Geobacillus stearothermophilus additional information
-
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Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
65 73
-
Geobacillus stearothermophilus

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
90
-
pH 6.0, 17% loss of activity after 6 min, 80% loss of activity after 30 min Geobacillus stearothermophilus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
4.5 6.5 at 37°C Geobacillus stearothermophilus
5 6 at 60°C Geobacillus stearothermophilus

pH Stability

pH Stability pH Stability Maximum Comment Organism
6 11 26°C, 30 min, stable Geobacillus stearothermophilus