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

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.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-P3690
    Ac-Leu-Leu-Norleucinol
    Inhibitor
    Ac-Leu-Leu-Norleucinol (ALLN) is a calpain inhibitor, can be used for research of Acetaminophen (HY-66005) induced acute liver damage, and lowers glutamic-oxalacetic transaminease (ALT) and glutamic-pyruvic transaminase (AST).
    Ac-Leu-Leu-Norleucinol
  • HY-P5379
    Calpastatin subdomain B
    Calpastatin subdomain B is a biological active peptide. (inhibit calpain activity)
    Calpastatin subdomain B
  • HY-N13917
    Argyrin B
    Inhibitor
    Argyrin B, a natural product cyclic peptide, is a reversible, non-competitive immunoproteasome inhibitor. Argyrin B shows selective inhibition of the β5i and β1i sites of the immunoproteasome over the β5c and β1c sites of the constitutive proteasome with nearly 20-fold selective inhibition of β1i over the homologous β1c. Argyrin B has antibacterial effects.
    Argyrin B
  • HY-163770
    Anticancer agent 233
    Inhibitor
    Anticancer agent 233 (compound 5g) is a 3,5-bis(arylmethylene)-4-piperidinone derivative with anticancer activity, with GI50 of 0.25 and 0.23 μM for cervical cancer (HeLa) and colon cancer (HCT116) cell lines, respectively. The chlorine atom on the aromatic ring of Anticancer agent 233 interacts well with the catalytic site of 20S proteasome, inhibiting the activity of 20S proteasome to exert its anticancer effect.
    Anticancer agent 233
  • HY-158412
    BT317
    Inhibitor 99.81%
    BT317 is a blood-brain transmissible mitochondrial Lon peptidase I (LonP1) and CT-L proteasome inhibitor. BT317 can increase the production of reactive oxygen species (ROS) and induce apoptosis in astrocytoma cells. BT317 has antitumor activity.
    BT317
  • HY-157033
    LMP7-IN-2
    Inhibitor
    LMP7-IN-2 is a LMP7 inhibitor. LMP7-IN-2 can be used for associated inflammatory diseases and disorders.
    LMP7-IN-2
  • HY-137286
    Z-Leu-Leu-Glu-βNA
    Z-Leu-Leu-Glu-βNA (Z-Leu-Leu-Glu-β-naphthylamide) is a substrate for determination of the glutamylpeptidyl-peptide hydrolase activity of the 20S proteasome.
    Z-Leu-Leu-Glu-βNA
  • HY-113221AS
    Isovalerylcarnitine-d3 chloride
    Isovalerylcarnitine-d3 (chloride) is the deuterium labeled Isovalerylcarnitine chloride[1].
    Isovalerylcarnitine-d<sub>3</sub> chloride
  • HY-150591
    20S Proteasome-IN-3
    Inhibitor
    20S Proteasome-IN-3 is a 20S proteasome β5 subunit inhibitor (IC50=1.64 μM). 20S Proteasome-IN-3 shows anti-tumor proliferation activity.
    20S Proteasome-IN-3
  • HY-158150
    20S Proteasome-IN-5
    Inhibitor
    20S Proteasome-IN-5 (Compound 5) is a macrocyclic inhibitor of the 20S Proteasome, with IC50 values of 0.19 and 52.5 μM for ChT-L and PGPH-L activity, respectively.
    20S Proteasome-IN-5
  • HY-157035
    Proteasome β2c/i-IN-1
    Inhibitor
    Proteasome β2c/i-IN-1 (compound 37) is a subunit-selective human proteasome β2c and β2i inhibitor .
    Proteasome β2c/i-IN-1
  • HY-168902
    Proteasome-IN-7
    Inhibitor
    Proteasome-IN-7 (Compound 6f) is an epoxyketone macrocyclic peptidyl proteasome inhibitor (IC50 value of 37.92 nM for 20S proteasome ChT-L subunit). Proteasome-IN-7 displays robust antiproliferative effects against multiple myeloma, acute lymphoblastic leukemia and non-small cell lung cancer.
    Proteasome-IN-7
  • HY-115753
    Calpain Inhibitor-1
    Inhibitor
    Calpain Inhibitor-1 (compound 36) is a potent and selective cysteine protease calpain 1 (Cal1) inhibitor (IC50=100 nM; Ki=2.89 μM).
    Calpain Inhibitor-1
  • HY-138096
    Z-LLF-CHO
    Inhibitor
    Z-LLF-CHO (Z-Leu-Leu-Phe-CHO) is a potent inhibitor of the chymotrypsin-like activity of the pituitary multicatalytic proteinase complex (Ki = 460 nM). Z-LLF-CHO is also a NF-κB nuclear translocation inhibitor.
    Z-LLF-CHO
  • HY-135511
    Nor-Cerpegin
    Inhibitor
    Nor-Cerpegin is an analog of Cerpegin. Cerpegin, a pyridinone-fused c-lactone, is an inhibitor of 20S proteasome. Cerpegin can be used as a tranquillizer, anti-inflammatory, analgesic and antiulcer.
    Nor-Cerpegin
  • HY-157212
    PARP-1/Proteasome-IN-1
    Inhibitor
    PARP-1/Proteasome-IN-1 (compound 42i) is a dual PARP-1 and proteasome inhibitor with significant inhibitory effects on breast cancer. PARP-1/Proteasome-IN-1 can downregulate the expression of BRCA1 and RAD51 to inhibit homologous recombination repair function and induce apoptosis.
    PARP-1/Proteasome-IN-1
  • HY-N2166A
    Tomatine hydrochloride
    Inhibitor
    Tomatine hydrochloride is a glycoalkaloid, found in the tomato plant (Lycopersicon esculentum Mill.). Tomatine hydrochloride elicits neurotoxicity in RIP1 kinase and caspase-independent manner. Tomatine hydrochloride promotes the upregulation of nuclear apoptosis inducing factor (AIF) in neuroblastoma cells. Tomatine hydrochloride also inhibits 20S proteasome activity.
    Tomatine hydrochloride
  • HY-P4284
    Z-GGF-CMK
    Inhibitor
    Z-GGF-CMK is a protease inhibitor, inhibits ClpP1P2 and proteasome. Z-GGF-CMK exhibits cytotoxic activity against HepG2 cells with a CC50 value of 125 μM.
    Z-GGF-CMK
  • HY-156605
    Davelizomib
    Inhibitor
    Davelizomib is proteasome inhibitor with antineoplastic effect.
    Davelizomib
  • HY-157032
    Proteasome-IN-5
    Inhibitor
    Proteasome-IN-5 (compound 5) is a proteasome inhibitor.
    Proteasome-IN-5
Cat. No. Product Name / Synonyms Application Reactivity