1. Metabolic Enzyme/Protease
  2. Proteasome


Proteasomes are very large protein complexes inside all eukaryotes and archaea, and in some bacteria. In eukaryotes, they are located in the nucleus and the cytoplasm. The main function of the proteasome is to degrade unneeded or damaged proteins by proteolysis, a chemical reaction that breaks peptide bonds. Enzymes that carry out such reactions are called proteases. Proteasomes are part of a major mechanism by which cells regulate the concentration of particular proteins and degrade misfolded proteins. The degradation process yields peptides of about seven to eight amino acids long, which can then be further degraded into amino acids and used in synthesizing new proteins. Proteins are tagged for degradation with a small protein called ubiquitin. The tagging reaction is catalyzed by enzymes called ubiquitin ligases. Once a protein is tagged with a single ubiquitin molecule, this is a signal to other ligases to attach additional ubiquitin molecules. The result is a polyubiquitin chain that is bound by the proteasome, allowing it to degrade the tagged protein.

Proteasome Related Products (27):

Cat. No. Product Name Effect Purity
  • HY-13259
    MG-132 Inhibitor >98.0%
    MG-132 is a potent, reversible, and cell-permeable 20S proteasome inhibitor which inhibits proteasomal chymotrypsin-like peptidase activity with an IC50 of 24.2 nM.
  • HY-10227
    Bortezomib Inhibitor 99.97%
    Bortezomib (PS-341) is a potent 20S proteasome inhibitor with a Ki of 0.6 nM.
  • HY-10455
    Carfilzomib Inhibitor 99.26%
    Carfilzomib is an irreversible proteasome inhibitor with an IC50 of 5 nM in ANBL-6 and RPMI 8226 cells.
  • HY-B0496
    PMSF Inhibitor >99.0%
    PMSF is an irreversible serine/cysteine protease inhibitor commonly used in the preparation of cell lysates.
  • HY-13067
    Celastrol Inhibitor 99.90%
    Celastrol is a proteasome inhibitor which potently and preferentially inhibits the chymotrypsin-like activity of a purified 20S proteasome with IC50 of 2.5 μM.
  • HY-101286
    Rpn11-IN-1 Inhibitor
    Rpn11-IN-1 is a potent and selective inhibitor of proteasome subunit Rpn11 with an IC50 of 390 nM.
  • HY-100227
    E 64c Inhibitor
    E 64c is a derivative of naturally occurring epoxide inhibitor of cysteine proteases, a Calcium-activated neutral protease (CANP) inhibitor and a very weak irreversible cathepsin C inhibitor.
  • HY-13207
    ONX-0914 Inhibitor 98.86%
    ONX-0914 (PR-957) is a potent and selective immunoproteasome inhibitor with minimal cross-reactivity for the constitutive proteasome.
  • HY-P0018
    Pepstatin Inhibitor 98.45%
    Pepstatin 是由放线菌类产生的一种特异性的天冬氨酸蛋白酶 (aspartic proteases) 抑制剂,同时可抑制 HIV protease 的活性。
  • HY-13821
    Epoxomicin Inhibitor 99.89%
    Epoxomicin is a cell-permeable and irreversible proteasome inhibitor, primarily the chymotrypsin-like activity.
  • HY-10453
    Ixazomib Inhibitor >98.0%
    MLN2238 is a selective, potent, and reversible proteasome inhibitor, which inhibits the chymotrypsin-like proteolytic (β5) site of the 20S proteasome with an IC50 of 3.4 nM (Ki of 0.93 nM).
  • HY-18964
    MG-101 Inhibitor
    MG-101 is a potent inhibitor of cysteine proteases which inhibits calpain I, calpain II, cathepsin B and cathepsin L with Kis of 190, 220, 150 and 500 pM, respectively.
  • HY-P0018A
    Pepstatin Trifluoroacetate Inhibitor 99.11%
    Pepstatin Trifluoroacetate is a specific aspartic proteases inhibitor produced by actinomycetes, and also inhibits HIV protease. Sequence: Isovaleryl-Val-Val-Sta-Ala-Sta-OH.
  • HY-10452
    Ixazomib citrate Inhibitor >98.0%
    MLN2238 is a reversible inhibitor of the chymotrypsin-like proteolytic β5 site of the 20S proteasome with an IC50 of 3.4 nM and a Ki of 0.93 nM.
  • HY-12113
    Oprozomib Inhibitor 99.60%
    Oprozomib (ONX 0912; PR047) is an orally bioavailable inhibitor for CT-L activity of 20S proteasome β5/LMP7 with IC50 of 36 nM/82 nM.
  • HY-100529
    PD150606 Inhibitor >98.0%
    PD 150606 is a selective, cell-permeable non-peptide calpain inhibitor (Ki values for ν and m-calpains are 0.21 and 0.37 μM respectively).
  • HY-10454
    Delanzomib Inhibitor >98.0%
    Delanzomib(CEP-18770) is a novel orally-active inhibitor of the chymotrypsin-like activity of the proteasome that down-modulates the nuclear factor-kappaB (NF-kappaB) activity.
  • HY-100739
    RA190 Inhibitor 98.03%
    RA190, a bis-benzylidine piperidon, inhibits proteasome function by covalently binding to cysteine 88 of ubiquitin receptor RPN13.
  • HY-110404
    Capzimin Inhibitor 99.19%
    Capzimin is a potent and moderately specific proteasome isopeptidase Rpn11 inhibitor.
  • HY-18741
    VR23 Inhibitor
    VR23 is a small molecule that potently inhibited the activities of trypsin-like proteasomes (IC50 = 1 nM), chymotrypsin-like proteasomes (IC50 = 50-100 nM), and caspase-like proteasomes (IC50 = 3 μM).
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