Cysteine Protease

Cysteine protease inhibitors block enzymes that cut peptide bonds with a thiol group in the active site. The papain-like cysteine cathepsins work mainly in lysosomes, where they degrade proteins and process antigens and prohormones. Calpains are calcium-dependent cytosolic cysteine proteases that cleave cytoskeletal and signaling proteins at limited sites rather than digesting them completely. Both groups are studied in models of bone resorption, neurodegeneration, muscle wasting and tumor invasion. CA-074 inhibits cathepsin B, and CA-074 Methyl Ester is its membrane-permeable ester. Odanacatib targets cathepsin K, the main collagen-degrading protease of osteoclasts. MDL 28170 and PD 150606 inhibit calpains, while aloxistatin acts broadly on cysteine proteases.

Items 1-25 of 46

  • CA-074 Methyl Ester
    Cat. No.
    A13593

    CA-074 Methyl Ester

    Synonyms: CA-074 Me

    CA-074 methyl ester is a cell-permeable analog of CA-074 that acts as an irreversible cathepsin B inhibitor. CA-074 methyl ester is reported to inhibit bone resorption in rodent models and shown to inhibit B16 melanoma cell invasion in vitro.

    1 mg
    $45.00
    2 mg
    $65.00
    All 8 sizes
  • CA-074
    Cat. No.
    A13256

    CA-074

    CA-074 is a potent inhibitor of cathepsin B with a Ki of 2 to 5 nM.

    1 mg
    $65.00
    5 mg
    $190.00
    All 7 sizes
  • MDL 28170
    Cat. No.
    A15303

    MDL 28170

    Synonyms: Calpain Inhibitor III

    MDL 28170 is a cell permeable selective inhibitor of Calpain 1, a Ca2+-dependent cysteine protease which has been implicated in apoptosis of immune cells as well as neuronal cells.

    1 mg
    $25.00
    2 mg
    $35.00
    All 8 sizes
  • PD 150606
    Cat. No.
    A15306

    PD 150606

    PD 150606 is a cell-permeable, non-competitive, selective, non-peptide Ca2+ dependent calpain inhibitor for calpain-1 and for calpain-2 directed towards the Ca2+ binding sites of calpain.

    1 mg
    $25.00
    5 mg
    $55.00
    All 7 sizes
  • VBY-825
    Cat. No.
    A21069

    VBY-825

    VBY-825 is a novel, reversible cathepsin inhibitor with high potency against cathepsins B, L, S and V.

    1 mg
    $270.00
    2 mg
    $405.00
    All 7 sizes
  • Cathepsin Inhibitor 1
    Cat. No.
    A11466

    Cathepsin Inhibitor 1

    Cathepsin Inhibitor 1 is an inhibitor of Cathepsin (L, L2, S, K, B) with pIC50 of 7.9, 6.7, 6.0, 5.5 and 5.2, respectively.

    1 mg
    $35.00
    5 mg
    $90.00
    All 8 sizes
  • Balicatib
    Cat. No.
    A12020

    Balicatib

    Synonyms: AAE581; AAE-581,AAE 581

    Balicatib, a cathepsin K inhibitor, stimulates periosteal bone formation in monkeys.

    2 mg
    $30.00
    5 mg
    $50.00
    All 8 sizes
  • L-873724
    Cat. No.
    A12487

    L-873724

    L-873724 is a potent, orally bioavailable, selective and reversible non-basic cathepsin K inhibitor.

    1 mg
    $720.00
    5 mg
    $1,550.00
    All 4 sizes
  • E-64
    Cat. No.
    A13257

    E-64

    E-64 is an irreversible and selective cysteine protease inhibitor with IC50 of 9 nM for papain.

    2 mg
    $25.00
    5 mg
    $40.00
    All 8 sizes
  • Loxistatin Acid
    Cat. No.
    A13258

    Loxistatin Acid (E64-C)

    Synonyms: NSC 694279; EP 475,E-64C; E64-C

    Loxistatin Acid, a derivative of E-64, is an irreversible and membrane-permeant cysteine protease inhibitor.

    1 mg
    $40.00
    2 mg
    $55.00
    All 8 sizes
  • Gly-Phe-beta-naphthylamide
    Cat. No.
    A13611

    Gly-Phe-beta-naphthylamide

    Synonyms: H-Gly-Phe-BNA

    Gly-Phe-beta-naphthylamide is a cathepsin C substrate. The compound is described to accumulate inside lysosomes leading to their destruction.

    5 mg
    $35.00
    10 mg
    $50.00
    All 5 sizes
  • SJA6017
    Cat. No.
    A13640

    SJA6017

    Synonyms: Calpain Inhibitor VI

    SJA6017 is a cell permeable peptide aldehyde which functions as a reversible calpain inhibitor.

    1 mg
    $145.00
    5 mg
    $175.00
    All 4 sizes
  • MG-101
    Cat. No.
    A14220

    MG-101

    Synonyms: ALLN

    MG-101 (ALLN) is a cell-permeable and potent inhibitor of cysteine proteases including calpains and lysosomal cathepsins.

    5 mg
    $40.00
    10 mg
    $65.00
    All 6 sizes
  • (Rac)-PD 151746
    Cat. No.
    A14245

    (Rac)-PD 151746

    Synonyms: PD-151746

    PD 151746 is a selective, cell-permeable calpain inhibitor with Ki of 0.26 uM for μ-Calpain, about 20-fold selectivity over m-calpain.

    5 mg
    $50.00
    10 mg
    $85.00
    All 5 sizes
  • Acetyl-Calpastatin (184-210) (human)
    Cat. No.
    A15290

    Acetyl-Calpastatin (184-210) (human)

    Acetyl-Calpastatin (184-210) (human), selective calpain inhibitor. Strongly inhibits calpain I (Ki = 0.2 nM) and II but does not inhibit papain, trypsin and cathepsin L (Ki = 6 uM). Increases secretion of amyoid β-protein (Aβ) 42, Aβ40 and Aβ42 ratio.

    1 mg
    $230.00
    5 mg
    $630.00
    All 3 sizes
  • L 006235
    Cat. No.
    A15302

    L 006235

    L006235 is a potent, reversible cathepsin K inhibitor (IC50 = 0.25 nM) that displays > 4000-fold selectivity over cathepsins B, L and S.

    2 mg
    $30.00
    5 mg
    $50.00
    All 8 sizes
  • SID 26681509
    Cat. No.
    A15313

    SID 26681509

    SID 26681509 is a reversible and potent human cathepsin L inhibitor. SID 26681509 displays no inhibitory activity of cathepsin G.

    1 mg
    $55.00
    5 mg
    $140.00
    All 7 sizes

Items 1-25 of 46

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