1. Signaling Pathways
  2. Metabolic Enzyme/Protease
  3. Cathepsin

Cathepsin

Cathepsins are protease enzymes, categorized into multiple families. Cathepsins can be serine protease, cysteine protease, or aspartyl protease. There are about 15 classes of cathepsins in humans (Cathepsin A, B, C, D, E, F, G, H, K, L, O, S, V, W, and Z). Cathepsins are active in the low pH milieu of lysosomes and are versatile in their functions. Like other enzymes, they are vital for the normal physiological functions such as digestion, blood coagulation, bone resorption, ion channel activity, innate immunity, complement activation, apoptosis, vesicular trafficking, autophagy, angiogenesis, proliferation, and metastasis, among scores of others.

Numerous pathologies have been attributed to the dysregulated cathepsins, some of which include arthritis, periodontitis, pancreatitis, macular degeneration, muscular dystrophy, atherosclerosis, obesity, stroke, Alzheimer's disease, schizophrenia, tuberculosis, and Ebola.

Cathepsin Related Products (44):

Cat. No. Product Name Effect Purity
  • HY-18234A
    Leupeptin hemisulfate
    Inhibitor ≥98.0%
    Leupeptin hemisulfate is a membrane-permeable thiol protease inhibitor that inhibits Cathepsin B, Cathepsin H and Cathepsin L, and also impairs amphisome-lysosome fusion. Leupeptin hemisulfate also exhibits anti-inflammatory effect.
  • HY-100229
    Aloxistatin
    Inhibitor ≥98.0%
    Aloxistatin (E64d) is a cell-permeable and irreversible broad-spectrum cysteine protease inhibitor. Aloxistatin (E64d) exhibits entry-blocking effect for MERS-CoV.
  • HY-D0843
    N-Ethylmaleimide
    Inhibitor ≥98.0%
    N-Ethylmaleimide (NEM), a reagent that alkylates free sulfhydryl groups, is a cysteine protease inhibitor. N-ethylmaleimide specific inhibits phosphate transport in mitochondria. N-Ethylmaleimide is also a deubiquitinating enzyme inhibitor.
  • HY-B0496
    PMSF
    Inhibitor ≥99.0%
    PMSF is an irreversible serine/cysteine protease inhibitor commonly used in the preparation of cell lysates.
  • HY-15282
    E-64
    Inhibitor ≥98.0%
    E-64 (Proteinase inhibitor E 64) is a potent irreversible inhibitor against general cysteine proteases with IC50 of 9 nM for papain.
  • HY-P2498A
    Cathepsin D and E FRET Substrate acetate
    99.06%
    Cathepsin D and E FRET Substrate acetate is a fluorogenic substrate for cathepsins D and E and not for B, H or L. The cleavage occurs at the Phe-Phe amide bond resul. Cathepsin D and E FRET Substrate is a valuable tool for routine assays and for mechanistic studies on cathepsins E and D.
  • HY-128140
    Z-FY-CHO
    Inhibitor
    Z-FY-CHO (Z-Phe-Tyr-CHO) is a potent and specific cathepsin L (CTSL) inhibitor.
  • HY-100350
    CA-074 methyl ester
    Inhibitor 99.15%
    CA-074 methyl ester is a specific inhibitor of Cathepsin B, which has potent bioactivities such as neuroprotective, anti-cancer, and anti-inflamatory effects.
  • HY-100223
    Calpeptin
    Inhibitor ≥98.0%
    Calpeptin is a potent, cell penetrating calpain inhibitor, with an ID50 of 40 nM for Calpain I in human platelets. Calpeptin is also an inhibitor of cathepsin K.
  • HY-103350
    CA-074
    Inhibitor 99.85%
    CA-074 is a potent inhibitor of cathepsin B with a Ki of 2 to 5 nM.
  • HY-15533
    LY 3000328
    Inhibitor 98.12%
    LY 3000328 is a potent and selective Cathepsin S (Cat S) inhibitor with IC50s of 7.7 and 1.67 nM for hCat S and mCat S, respectively.
  • HY-P1645
    Papain
    Papain is a cysteine protease of the peptidase C1 family, which is used in food, pharmaceutical, textile, and cosmetic industries.
  • HY-10042
    Odanacatib
    Inhibitor 99.80%
    Odanacatib (MK-0822) is a potent and selective inhibitor of cathepsin K, with an IC50 of 0.2 nM for human cathepsin K.
  • HY-103353
    SID 26681509
    Inhibitor ≥98.0%
    SID 26681509 is a potent, reversible, competitive, and selective inhibitor of human cathepsin L with an IC50 of 56 nM. SID 26681509 inhibits in vitro propagation of malaria parasite Plasmodium falciparum and inhibits Leishmania major with IC50s of 15.4 μM and 12.5 μM, respectively. SID 26681509 shows no inhibitory activity against cathepsin G.
  • HY-109069
    Petesicatib
    Inhibitor 98.80%
    Petesicatib is a cathepsin S inhibitor, used in research of immune diseases.
  • HY-103353A
    SID 26681509 quarterhydrate
    Inhibitor
    SID 26681509 quarterhydrate is a potent, reversible, competitive, and selective inhibitor of human cathepsin L with an IC50 of 56 nM. SID 26681509 quarterhydrate inhibits in vitro propagation of malaria parasite Plasmodium falciparum and inhibits Leishmania major with IC50s of 15.4 μM and 12.5 μM, respectively. SID 26681509 quarterhydrate shows no inhibitory activity against cathepsin G.
  • HY-112818
    S130
    Inhibitor 99.31%
    S130 is a high affinity, selective inhibitor of ATG4B (a major cysteine protease) with an IC50 of 3.24 µM. S130 suppresses autophagy flux.
  • HY-128971
    LHVS
    Inhibitor
    LHVS is a potent, non-selective cysteine protease inhibitor. LHVS effectively blocks T. gondii microneme protein secretion (IC50=10 μM), gliding motility, and cell invasion.
  • HY-119293
    K777
    Inhibitor ≥98.0%
    K777 is a potent, orally active and irreversible cysteine protease inhibitor. K777 is also a potent CYP3A4 inhibitor with an IC50 of 60 nM and a selective CCR4 antagonist featuring the potent chemotaxis inhibition. K777 irreversibly inhibits Cruzain, the major cysteine protease of Trypansoma cruzi, and cathepsins B and L. K777 is a broad-spectrum antiviral by targeting cathepsin-mediated cell entry. K777 inhibits SARS-CoV and EBOV pseudovirus entry with IC50 values of 0.68 nM and 0.87 nM, respectively.
  • HY-15100
    Balicatib
    Inhibitor 99.07%
    Balicatib(AAE-581) is a potent and selective inhibitor of cathepsin K; 10-100 fold more potent in cell-based enzyme occupancy assays than against cathepsin B, L, and S.
Isoform Specific Products

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