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Literature summary for 3.4.22.16 extracted from

  • Aranishi, F.; Hara, K.; Ishinara, T.
    Purification and characterization of cathepsin H from hepatopancreas of carp Cyprinus carpio (1992), Comp. Biochem. Physiol. B, 102B, 499-505.
    View publication on PubMed

Activating Compound

Activating Compound Comment Organism Structure
2-mercaptoethanol activates, synergistic with EDTA Cyprinus carpio
cysteine activates, synergistic with EDTA Cyprinus carpio
EDTA activates Cyprinus carpio
thiol compounds activate Cyprinus carpio

Inhibitors

Inhibitors Comment Organism Structure
1,10-phenanthroline 4% inhibition at 5 mM Cyprinus carpio
antipain 91% inhibition at 0.1 mM Cyprinus carpio
CdCl2 90% inhibition at 1 mM Cyprinus carpio
CoCl2 100% inhibition at 1 mM Cyprinus carpio
CuCl2 94% inhibition at 1 mM Cyprinus carpio
DTNB 100% inhibition at 1 mM Cyprinus carpio
ethyl(2S,3S)-3-(S)-3-methyl-1-(3-methylbutylcarbamoyl)butylcarbamoyl oxirane-2-carboxylate 100% inhibition at 0.1 mM Cyprinus carpio
HgCl2 73% inhibition at 1 mM Cyprinus carpio
leupeptin 80% inhibition at 0.1 mM Cyprinus carpio
PCMB 46% inhibition at 1 mM Cyprinus carpio
Soybean trypsin inhibitor 8% inhibition at 0.005 mM Cyprinus carpio
tosyl-Leu-CH2Cl 89% inhibition at 1 mM Cyprinus carpio
tosyl-Phe-CH2Cl 84%inhibition at 1 mM Cyprinus carpio
Zn(CH3COO)2 85% inhibition at 1 mM Cyprinus carpio

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
23000
-
gel filtration Cyprinus carpio

Organism

Organism UniProt Comment Textmining
Cyprinus carpio
-
-
-

Purification (Commentary)

Purification (Comment) Organism
-
Cyprinus carpio

Source Tissue

Source Tissue Comment Organism Textmining

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.000109
-
-
Cyprinus carpio

Subunits

Subunits Comment Organism
monomer
-
Cyprinus carpio
More two bands in SDS-PAGE of 23000 and 27000, respectively, interpreted as different stages of enzyme processing Cyprinus carpio

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
45
-
substrate Arg-4-methylcoumaryl-7-amide Cyprinus carpio

Temperature Stability [°C]

Temperature Stability Minimum [°C] Temperature Stability Maximum [°C] Comment Organism
30
-
rapid inactivation above, without substrate bound Cyprinus carpio

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
6.5
-
substrate Arg-4-methylcoumaryl-7-amide Cyprinus carpio

pH Stability

pH Stability pH Stability Maximum Comment Organism
5.5 6 rapid inactivation above Cyprinus carpio