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Literature summary for 3.2.1.1 extracted from

  • Abdel-Naby, M.A.; Hashem, A.M.; Esawy, M.A.; Abdel-Fattah, A.F.
    Immobilization of Bacillus subtilis alpha-amylase and characterization of its enzymatic properties (1998), Microbiol. Res., 153, 319-325.
No PubMed abstract available

General Stability

General Stability Organism
soluble enzyme loses 73% of its activity, enzyme immobilized on aminoalkylsilane-alumina loses 29% of its activity, enzyme immobilized on DEAE-cellulose loses 23% of its activity, enzyme immobilized on chitin loses 2% of its activity, enzyme immobilized on polyacrylamide loses 12% of its activity, after 60 min at 60°C Bacillus subtilis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information
-
Bacillus subtilis

Organism

Organism UniProt Comment Textmining
Bacillus subtilis
-
-
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
3.1
-
enzyme immobilized on aminoalkylsilane-alumina Bacillus subtilis
5.1
-
enzyme immobilized on DEAE-cellulose Bacillus subtilis
8.3
-
enzyme immobilized on chitin Bacillus subtilis
11.2
-
enzyme immobilized on polyacrylamide Bacillus subtilis
22.58
-
soluble enzyme Bacillus subtilis

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
starch + H2O
-
Bacillus subtilis additional information
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
45
-
soluble enzyme Bacillus subtilis
60
-
enzyme immobilized on aminoalkylsilane-alumina or DEAE-cellulose Bacillus subtilis
65
-
enzyme immobilized on chitin or on polyacrylamide Bacillus subtilis

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
60
-
60 min, soluble enzyme loses 73% of its activity, enzyme immobilized on aminoalkylsilane-alumina loses 29% of its activity, enzyme immobilized on DEAE-cellulose loses 23% of its activity, enzyme immobilized on chitin loses 2% of its activity, enzyme immobilized on polyacrylamide loses 12% of its activity Bacillus subtilis

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.3
-
enzyme immobilized on chitin Bacillus subtilis
5.5
-
enzyme immobilized on polyacrylamide Bacillus subtilis
5.8
-
enzyme immobilized on aminoalkylsilane-alumina or on DEAE cellulose Bacillus subtilis
6
-
soluble enzyme Bacillus subtilis