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Literature summary for 3.4.22.52 extracted from

  • Murachi, T.; Tanaka, K.; Hatanaka, M.; Murakami, T.
    Intracellular cellular Ca2+-dependent protease (calpain) and its high-molecular-weight endogenous inhibitor (calpastatin) (1981), Adv. Enzyme Regul., 19, 407-424.
    View publication on PubMed

General Stability

General Stability Organism
30% inactivation by trypsin after 15 min at 30°C, pH 7.5 Rattus norvegicus
5% autolysis after 10 min, at 0°C, pH 7.5, 10 mM Ca2+ Rattus norvegicus

Inhibitors

Inhibitors Comment Organism Structure
calpastatin
-
Rattus norvegicus

Metals/Ions

Metals/Ions Comment Organism Structure
Ca2+ half-maximal activation at 0.04 mM Rattus norvegicus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
80000
-
gel filtration Rattus norvegicus

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
partial Rattus norvegicus

Source Tissue

Source Tissue Comment Organism Textmining
liver
-
Rattus norvegicus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
casein + H2O
-
Rattus norvegicus ?
-
?

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
58
-
10 min, stable Rattus norvegicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5
-
-
Rattus norvegicus