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Literature summary for 3.4.22.1 extracted from

  • Lim, S.U.; Seo, J.S.; Kim, M.S.; Ahn, S.J.; Jeong, H.D.; Kim, K.H.; Park, N.G.; Kim, J.K.; Chung, J.K.; Lee, H.H.
    Molecular cloning and characterization of cathepsin B from a scuticociliate, Uronema marinum (2005), Comp. Biochem. Physiol. B Biochem. Mol. Biol., 142, 283-292.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expression in Escherichia coli Uronema marinum

Inhibitors

Inhibitors Comment Organism Structure
1,10-phenanthroline 66% remaining activity at 1 mM, 68% remaining activity at 2 mM Uronema marinum
EDTA 89% remaining activity at 1 mM, 80% remaining activity at 2 mM Uronema marinum
leupeptin 4% remaining activity at 0.010 mM, 1% remaining activity at 0.1 mM Uronema marinum
additional information no inhibition with pepstatin A at 0.005 and 0.1 mM Uronema marinum
PMSF 98% remaining activity at 0.5 mM, 93% remaining activity at 1 mM Uronema marinum
trans-epoxysuccinyl-L-leucyl-amido(4-guanidino)butane E-64, 43% remaining activity at 0.005 mM, 32% remaining activity at 0.020 mM, 2% remaining activity at 0.030 mM Uronema marinum

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
29220
-
mature protein, calculated from amino acid sequence Uronema marinum
30000
-
1 * 30000, SDS-PAGE, gelatin-SDS-PAGE Uronema marinum
37120
-
pro-protein, calculated from amino acid sequence Uronema marinum
38980
-
prepro-protein, calculated from amino acid sequence Uronema marinum

Organism

Organism UniProt Comment Textmining
Uronema marinum Q6SSE0
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Uronema marinum

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
Z-arginyl-arginyl-7-amido-4-methylcoumarin + H2O 37°C, pH 5.5, 5 mM DTT Uronema marinum Z-Arg-Arg + 7-amino-4-methylcoumarin
-
?

Subunits

Subunits Comment Organism
monomer 1 * 30000, SDS-PAGE, gelatin-SDS-PAGE Uronema marinum

Synonyms

Synonyms Comment Organism
cathepsin B
-
Uronema marinum

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
5.5
-
-
Uronema marinum

pH Range

pH Minimum pH Maximum Comment Organism
3.5 8
-
Uronema marinum