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

Cathepsin

Cathepsin

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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 Isoform Specific Products:

Cathepsin Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-P4532
    Ac-Leu-Val-Lys-Aldehyde
    		Inhibitor
    Ac-Leu-Val-Lys-Aldehyde is a potent cathepsin B inhibitor with IC50s of 4 nM. Ac-Leu-Val-Lys-Aldehyde significantly reduces quinolinic acid (HY-100807)-induced striatal cell death and causes accumulation of LC3-II.
    Ac-Leu-Val-Lys-Aldehyde
  • HY-146581
    Cathepsin C-IN-4
    		Inhibitor
    Cathepsin C-IN-4 (compound SF27) is a potent Cathepsin C (Cat C) inhibitor, with an IC50 of 65.6 nM. Cathepsin C-IN-4 also inhibits THP-1 and U937 cell, with IC50 values of 203.4 and 177.6 nM, respectively.
    Cathepsin C-IN-4
  • HY-144812
    Gü1303
    		Inhibitor
    Gü1303 is a potent, reversible, slow-binding cathepsin K (CatK) inhibitor with a Ki of 0.91 nM for mature CatK (mCatK). Gü1303 suppresses the autocatalytic activation of the cathepsin K zymogen.
    Gü1303
  • 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.
    CTSL/CAPN1-IN-2
  • HY-123531
    JNJ 10329670
    		Inhibitor
    JNJ 10329670 is a potent and selective noncovalent cathepsin S inhibitor with a Ki value of 34 nM for human cathepsin S. JNJ 10329670 blocks invariant chain proteolysis in B cells and dendritic cells, as well as antigen-induced T cell proliferation.
    JNJ 10329670
  • HY-RS03339
    Ctsk Rat Pre-designed siRNA Set A
    		Inhibitor

    Ctsk Rat Pre-designed siRNA Set A contains three designed siRNAs for Ctsk gene (Rat), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Ctsk Rat Pre-designed siRNA Set A
    Ctsk Rat Pre-designed siRNA Set A
  • HY-151524
    Cathepsin K inhibitor 3
    		Inhibitor
    Cathepsin K inhibitor 3 (compound 23) is a highly selective cathepsin K inhibitor with an IC50 value of 0.5 nM. Cathepsin K inhibitor 3 has a favorable pharmacokinetic profile and may be used in osteoarthritis (OA) disease studies.
    Cathepsin K inhibitor 3
  • HY-D1634A
    Bz-FVR-AMC TFA
    Bz-FVR-AMC TFA 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.
    Bz-FVR-AMC TFA
  • HY-N6037R
    Gardenin B (Standard)
    		Inhibitor
    Gardenin B (Standard) is the analytical standard of Gardenin B (HY-N6037). This product is intended for research and analytical applications. Gardenin B is a flavonoid isolated from Gardenia jasminoides. Gardenin B is a methoxyflavone compound and an inhibitor of USP7, ODC (IC50: 6.24 μg/mL), and Cathepsin D (IC50: 5.61 μg/mL). Gardenin B exhibits antioxidant and antitumor activities. Gardenin B shows IC50 values of 8.87 and 10.59 μg/mL for DPPH and NO scavenging, respectively, and also possesses ferric ion reducing ability. Additionally, Gardenin B can inhibit tumor cell proliferation, induce cell cycle arrest and apoptosis. Gardenin B can be used in cancer research.
    Gardenin B (Standard)
  • HY-RS03323
    Ctsb Mouse Pre-designed siRNA Set A
    		Inhibitor

    Ctsb Mouse Pre-designed siRNA Set A contains three designed siRNAs for Ctsb gene (Mouse), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Ctsb Mouse Pre-designed siRNA Set A
    Ctsb Mouse Pre-designed siRNA Set A
  • HY-RS03333
    Ctse Rat Pre-designed siRNA Set A
    		Inhibitor

    Ctse Rat Pre-designed siRNA Set A contains three designed siRNAs for Ctse gene (Rat), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Ctse Rat Pre-designed siRNA Set A
    Ctse Rat Pre-designed siRNA Set A
  • HY-D1523
    Z-Arg-Arg-4MβNA triacetate
    Z-Arg-Arg-4MβNA triacetate is a cathepsin B-specific substrate and can produce fluorescent end product 4MβNA (λex = 355 nm, λem = 430 nm).
    Z-Arg-Arg-4MβNA triacetate
  • HY-148298
    CatD-IN-1
    		Inhibitor
    CatD-IN-1 (Compound 5) is a Cathepsin D inhibitor with an IC50 of 0.44 μM. CatD-IN-1 holds potential for research in the field of osteoarthritis .
    CatD-IN-1
  • HY-P10118
    Cathepsin L-IN-3
    		Inhibitor
    Cathepsin L-IN-3 is a tripeptide-sized cathepsin L inhibitor.
    Cathepsin L-IN-3
  • HY-W796158
    Z-DEVD-CMK
    		Inhibitor
    Z-DEVD-CMK is an irreversible inhibitor of most of the cathepsins in vitro.
    Z-DEVD-CMK
  • HY-P5086
    H-Gly-Arg-NH2
    H-Gly-Arg-NH2 is a substrate for the determination of bovine spleen cathepsin C activity.
    H-Gly-Arg-NH2
  • HY-152204
    Cathepsin L/S-IN-1
    		Inhibitor
    Cathepsin L/S-IN-1 is a dual inhibitor of Cathepsin L and Cathepsin S with IC50s of 4.10 μM and 1.79 μM, respectively. Cathepsin L/S-IN-1 shows a significant antimetastatic and invasive effects on pancreatic cancer BxPC-3 and PANC-1 cells.
    Cathepsin L/S-IN-1
  • HY-139685
    ABP 25
    		Inhibitor
    ABP 25 is an activity-based probe for cathepsin K imaging with excellent potency and selectivity.
    ABP 25
  • HY-125386
    SQ 32056
    		Inhibitor
    SQ 32056 is a cathepsin E inhibitor. SQ 32056 can block the pressor response to endothelin.
    SQ 32056
  • HY-137392
    Cathepsin L-IN-4
    Cathepsin L-IN-4 is an inhibitor of cathepsin L with IC50 at nanomolar concentrations.
    Cathepsin L-IN-4
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
Cathepsin Isoform Comparison

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