1. Metabolic Enzyme/Protease
  2. 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 (126):

Cat. No. Product Name Effect Purity
  • HY-B0496
    PMSF Inhibitor
    PMSF is an irreversible serine/cysteine protease inhibitor commonly used in the preparation of cell lysates.
  • HY-P1645
    Papain
    Papain is a cysteine protease of the peptidase C1 family, which is used in food, pharmaceutical, textile, and cosmetic industries.
  • HY-18234A
    Leupeptin hemisulfate Inhibitor
    Leupeptin hemisulfate is a broad-spectrum, membrane-permeable protease inhibitor. Leupeptin hemisulfate potently inhibits serine, cysteine and threonine proteases. Leupeptin hemisulfate inhibits Mpro (the main protease of SARS-CoV-2) and also has anti-inflammatory activity[1][2][3].
  • HY-100229
    Aloxistatin Inhibitor
    Aloxistatin (E64d) is a cell-permeable and irreversible broad-spectrum cysteine protease inhibitor. Aloxistatin (E64d) exhibits entry-blocking effect for MERS-CoV.
  • HY-15282
    E-64 Inhibitor
    E-64 (Proteinase inhibitor E 64) is a potent irreversible inhibitor against general cysteine proteases with IC50 of 9 nM for papain.
  • HY-161342
    CTSL/CAPN1-IN-2 Inhibitor
    CTSL/CAPN1-IN-2 (Compound 14b) is an orally active inhibitor of both CTSL and CAPN1, with IC50 values of 6.88 nM and 347.6 nM, respectively. CTSL/CAPN1-IN-2 possesses anti-inflammatory properties and favorable pharmacokinetic characteristics. CTSL/CAPN1-IN-2 exhibits broad-spectrum antiviral activity against coronaviruses by blocking viral entry[1].
  • HY-N10109A
    Gallinamide A TFA Inhibitor 99.85%
    Gallinamide A TFA is a linearly depositing peptide and a potent inhibitor of cathepsin L (CatL) (IC50: 17.6 pM). Gallinamide A TFA inhibits SARS-CoV-2 infection by inhibiting CatL (EC50: 28 nM). Gallinamide A TFA also inhibits Plasmodium falciparum (IC50: 50 nM)[1][2].
  • HY-137841
    L-Arginine-7-amido-4-methylcoumarin hydrochloride
    L-Arginine-7-amido-4-methylcoumarin (Arginine 4-methyl-7-coumarylamide) hydrochloride is a specific substrate of cathepsin H but not for cathepsins L and B[1].
  • HY-149069
    TSC25 Inhibitor
    TSC25 is a potent cruzipain (CZP) inhibitor, with an IC50 of 3.34 nM and a pIC50 of 8.48[1].
  • HY-10294
    Relacatib Inhibitor 99.99%
    Relacatib (SB-462795) is a novel, potent, and orally active inhibitor of human cathepsins K, L, and V with Ki values of 41 pM, 68 pM, and 53 pM, respectively. Relacatib inhibits endogenous cathepsin K in situ in human osteoclasts and human osteoclast-mediated bone resorption with IC50 values of 45 nM and 70 nM, respectively. Relacatib inhibits bone resorption in vitro in human tissue as well as in cynomolgus monkeys in vivo[1][2].
  • HY-P4787
    Ac-Glu-Asp(EDANS)-Lys-Pro-Ile-Leu-Phe-Phe-Arg-Leu-Gly-Lys(DABCYL)-Glu-NH2
    Ac-Glu-Asp(EDANS)-Lys-Pro-Ile-Leu-Phe-Phe-Arg-Leu-Gly-Lys(DABCYL)-Glu-NH2 is a cathepsin D substrate, that can be used for cathepsin D FRET assay[1].
  • HY-103350
    CA-074 Inhibitor
    CA-074 is a potent inhibitor of cathepsin B with a Ki of 2 to 5 nM.
  • HY-P3012
    Cathepsin G Agonist
    Cathepsin G acts as a potent agonist of human platelet activation leading to their aggregation., and can be used for screening of relevant inhibitors[1].
  • HY-129578
    Asperphenamate Inhibitor
    Asperphenamate, a fungal metabolite of Aspergillus flatiipes with anti-cancer effect, exhibits IC50 values of 92.3 μM, 96.5 μM and 97.9 μM in T47D, MDA-MB-231 and HL-60 cells, respectively[1][2].
  • HY-D1634
    Bz-FVR-AMC
    Bz-FVR-AMC is a fluorogenic substrate for procathepsin with a kcat/Km value of 1070 mM-1s-1. The high concentration of BZ-FVR-AMC inhibits the substrate[1][2].
  • HY-109069
    Petesicatib Inhibitor 99.71%
    Petesicatib (RO5459072; RG-7625) is a cathepsin S inhibitor, used in research of immune diseases[1].
  • HY-P4293
    Z-Leu-Tyr-Chloromethylketone
    Z-Leu-Tyr-Chloromethylketone is a calpain inhibitor[1].
  • HY-P4561
    H-Pro-Thr-Glu-Phe-p-nitro-Phe-Arg-Leu-OH
    H-Pro-Thr-Glu-Phe-p-nitro-Phe-Arg-Leu-OH is a water-soluble polypeptide that can serve as a substrate for cathepsin D, pepsin and pepsinogen. H-Pro-Thr-Glu-Phe-p-nitro-Phe-Arg-Leu-OH has potential applications in biochemical analysis[1][2].
  • HY-P10008
    Cathepsin D/E Substrate, Fluorogenic
    Cathepsin D/E Substrate, Fluorogenic, 11 amino acid peptide, is a selective substrate for cathepsins D and E. Cathepsin D/E Substrate, Fluorogenic does not act as a substrate for cathepsins B, H, or L[1].
  • HY-E70197
    Calpain-1 (pig)
    Calpain-1 (pig) (μ-Calpain) is an intracellular Ca2+-regulated cysteine protease. Calpain-1 (pig) exhibits neuroprotective effect[1][2].