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Literature summary for 3.4.22.53 extracted from

  • Yoshimura, N.; Kikuchi, T.; Sasaki, T.; Kithara, A.; Hatanaka, M.; Murachi, T.
    Two distinct Ca2+ proteases (calpain I and calpain II) purified concurrently by the same method from rat kidney (1983), J. Biol. Chem., 258, 8883-8889.
    View publication on PubMed

Metals/Ions

Metals/Ions Comment Organism Structure
Ba2+ slight activation Rattus norvegicus
Ca2+ half-maximal activation at 0.2 mM, full activity at 1 mM Rattus norvegicus
Mg2+ slight activation Rattus norvegicus
Sr2+ activates Rattus norvegicus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
25000
-
1 * 80000 + 1 * 25000, SDS-PAGE Rattus norvegicus
80000
-
1 * 80000 + 1 * 25000, SDS-PAGE Rattus norvegicus
115000
-
gel filtration Rattus norvegicus

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Rattus norvegicus

Substrates and Products (Substrate)

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

Subunits

Subunits Comment Organism
dimer 1 * 80000 + 1 * 25000, SDS-PAGE Rattus norvegicus

Temperature Stability [°C]

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

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7.5 8
-
Rattus norvegicus