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Literature summary for 3.4.22.1 extracted from

  • Towatari, T.; Kawabata, Y.; Katunuma, N.
    Crystallization and properties of cathepsin B from rat liver (1979), Eur. J. Biochem., 102, 279-289.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
2-mercaptoethanol activates Rattus norvegicus
cysteine activates Rattus norvegicus
dithiothreitol activates Rattus norvegicus
EDTA activates in presence of thiol compound Rattus norvegicus
thiol compounds required for full activity Rattus norvegicus

Crystallization (Commentary)

Crystallization (Comment) Organism
-
Rattus norvegicus

Inhibitors

Inhibitors Comment Organism Structure
1-tosylamide-2-phenylethyl chloromethylketone
-
Rattus norvegicus
chymostatin
-
Rattus norvegicus
iodoacetic acid
-
Rattus norvegicus
L-3-carboxy-2,3-trans-epoxypropionyl-leucylamido-(4-guanidino)butane E-64 Rattus norvegicus
leupeptin
-
Rattus norvegicus
N-tosyl-lysyl chloromethylketone
-
Rattus norvegicus

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
22500
-
sedimentation equilibrium centrifugation Rattus norvegicus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
Proteins + H2O Rattus norvegicus
-
?
-
?

Organism

Organism UniProt Comment Textmining
Rattus norvegicus
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Rattus norvegicus

Source Tissue

Source Tissue Comment Organism Textmining
liver
-
Rattus norvegicus
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.4
-
benzoyl-DL-Arg-p-nitroanilide as substrate Rattus norvegicus
1.04
-
benzoyl-DL-arginine ethyl ester Rattus norvegicus
2.12
-
benzoyl-DL-arginamide Rattus norvegicus
2.75
-
benzoyl-DL-Arg-beta-naphthylamide as substrate Rattus norvegicus

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
Aldolase + H2O
-
Rattus norvegicus Hydrolyzed aldolase
-
?
benzoyl-arginine ethyl ester + H2O
-
Rattus norvegicus benzoyl-arginine + ethanol
-
?
benzoyl-DL-Arg-beta-naphthylamide + H2O
-
Rattus norvegicus benzoyl-DL-Arg + beta-naphthylamine
-
?
benzoyl-DL-Arg-p-nitroanilide + H2O
-
Rattus norvegicus benzoyl-DL-Arg + p-nitroaniline
-
?
benzoyl-DL-argininamide + H2O
-
Rattus norvegicus benzoyl-DL-arginine + NH3
-
?
Proteins + H2O
-
Rattus norvegicus ?
-
?

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
47
-
stable for 15 min at pH 6 Rattus norvegicus

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6
-
-
Rattus norvegicus

pH Range

pH Minimum pH Maximum Comment Organism
4 7
-
Rattus norvegicus

pH Stability

pH Stability pH Stability Maximum Comment Organism
4 6.5 stable Rattus norvegicus