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Literature summary for 3.2.1.1 extracted from

  • Podoler, H.; Applebaum, S.W.
    The alpha-amylase of the beetle Callosobruchus chinensis. Properties (1971), Biochem. J., 121, 321-325.
    View publication on PubMedView publication on EuropePMC

Activating Compound

Activating Compound Comment Organism Structure
2-mercaptoethanol activates Callosobruchus chinensis
glutathione activates Callosobruchus chinensis

Inhibitors

Inhibitors Comment Organism Structure
Cl-
-
Callosobruchus chinensis
EDTA
-
Callosobruchus chinensis
iodoacetate
-
Callosobruchus chinensis
NEM
-
Callosobruchus chinensis

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
additional information
-
additional information 2.3 mg/ml for soluble starch Callosobruchus chinensis

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ 2-mercaptoethanol interfers with activation by Ca2+, glutathione enhances it Callosobruchus chinensis

Organism

Organism UniProt Comment Textmining
Callosobruchus chinensis
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
larva
-
Callosobruchus chinensis
-

Substrates and Products (Substrate)

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

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.2 5.4
-
Callosobruchus chinensis
5.6 5.8 in presence of Ca2+ or 2-mercaptoethanol Callosobruchus chinensis

pH Range

pH Minimum pH Maximum Comment Organism
4.5 7 pH 4.5: about 35% of maximal activity, pH 7.0: about 45% of maximal activity Callosobruchus chinensis