RA190, a bis-benzylidine piperidon, inhibits proteasome function by covalently binding to cysteine 88 of ubiquitin receptor RPN13.
Anticancer agent 82 is a FiVe1 derivative, an orally active and selective anticancer agent. FiVe1 binds type III intermediate filament protein vimentin (VIM), to induce hyperphosphorylation of Ser56, resulting selective disruption of mitosis and multinucleation in transformed VIM-expressing mesenchymal cancer cells. Anticancer agent 82 shows better oral bioavailability and pharmacokinetic profiles than FiVe1[1].
20S Proteasome-IN-3 is a 20S proteasome β5 subunit inhibitor (IC50=1.64 μM)[1][2]. 20S Proteasome-IN-3 shows anti-tumor proliferation activity[2].
TCH-165 is a specific small molecule modulator of proteasome assembly, regulates the dynamic equilibrium between the 20S and 26S proteasome complexes, favoring 20S-mediated protein degradation; enhances the degradation of both α-syn and tau, does not induce the degradation of GAPDH, enhances the degradation of intrinsically disordered proteins in cell culture; display a decrease in assembled 26S and an increase in 20S proteasome in treated cells.
Calpeptin is a potent, cell penetrating calpain inhibitor, with an ID50 of 40 nM for Calpain I in human platelets[1]. Calpeptin is also an inhibitor of cathepsin K[2].
Ac-Nle-Pro-Nle-Asp-AMC is a specific substrate for 26S proteasome. Ac-Nle-Pro-Nle-Asp-AMC can be used for the 26S proteasome caspase-like activity analysis[1][2][3].
MUN57694 is 26S proteasome inhibitor. MUN57694 was reported in WO 2006128196. This product has not formal name. For the convenience of scientific communication, we named it by combining its Inchi key (3 letters from the first letter of each section) with the last 5 digits of its CAS number or its molecule weight if its CAS number is not available
Carfilzomib-d8 is deuterium labeled Carfilzomib. Carfilzomib (PR-171) is an irreversible proteasome inhibitor with an IC50 of 5 nM in ANBL-6 and RPMI 8226 cells.
Calpain Inhibitor VI (SJA6017) is a synthesized peptide aldehyde inhibitor of calpain. Calpain Inhibitor VI inhibits purified m-calpain with the IC50 of 80 nM. Calpain Inhibitor VI can be used for the research of cataract[1].
NIC-0102 is an orally active proteasome inhibitor (pIC50=7.55) that specifically inhibits NLRP3 inflammatory vesicle activation. NIC-0102 shows potent anti-inflammatory effects in a model of dextran sulfate sodium (DSS)-induced ulcerative colitis. NIC-0102 also inhibits production of pro-IL-1β[1].
(R)-MG-132 is the enantiomer of MG-132. (R)-MG-132 is a proteasome inhibitor[1].
Z-LLY-FMK (Calpain Inhibitor IV) is a calpain inhibitor, involved in apoptosis of many cell systems. Z-LLY-FMK inhibits the intestine apoptosis after common bile duct ligation[1].
Ac-PAL-AMC is a fluorogenic substrate specific for 20S proteasome LMP2/β1i activity[1].
Davelizomib is proteasome inhibitor with antineoplastic effect[1].
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).IC50 value: 1 nM (trypsin-like proteasome), 50-100 nM(chymotrypsin-like proteasome), 3 μM (caspase-like proteasome)Target: proteasomein vitro: VR23 is a novel proteasome inhibitor targeting β2 of the 20S proteasome subunit. VR23 produces a synergistic effect in killing multiple myeloma cells, including those that were resistant to bortezomib. VR23 as a structurally novel proteasome inhibitor with desirable properties as an anticancer agent.in vivo: VR23 shows effective antitumor and antiangiogenic activities in mice.
(Rac)-Calpain Inhibitor XII is a reversible and selective inhibitor of calpain I (μ-calpain, Ki=19 nM), with lower affinities for calpain II (m-calpain, Ki=120 nM) and cathepsin B (Ki=750 nM). (Rac)-Calpain Inhibitor XII has been used to study the role of calpains in diverse processes, including neutrophil chemotaxis, neuronal signaling, and cardiac response to injury.
Leptosphaerodione, isolated from Remotididymella sp. Fungus, is a potent ubiquitin-proteasome system (UPS) inhibitor. Leptosphaerodione exhibits cytotoxicity in HeLa cells with IC50 value of 3.2 μM. Anti-tumor agent[1].
Ixazomib (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).
KZR-616 (KZR616) is a potent, selective dual immunoproteasome subunit LMP7/LMP2 inhibitor with IC50 of 39 nM/139 nM, weakly inhibits β5, MECL-1 and no acitivty against β1 subunit; shows no inhibition at 10 uM against a broad selectivity panel of 20 serine, metallo-, cysteine and aspartyl proteases and 11 hydrolases; demonstrates efficacy in the anti-collagen antibody induced arthritis (CAIA) models. Other Indication Phase 2 Clinical
FK-448 Free base is an effective and specific inhibitor of chymotrypsin, with an IC50 of 720 nM.
MG-115 is a potent and reversible proteasome inhibitor, with Kis of 21 nM and 35 nM for 20S and 26S proteasome, respectively. MG-115 specifically inhibit the chymotrypsin-like activity of the proteasome, induces p53-dependent apoptosis[1][2][3].
Thrombin inhibitor 5 (compound 385) is a thrombin inhibitor, with IC50s ranging from 0.1 μM to 1 μM. Thrombin inhibitor 5 can be used for research of venous thromboembolism[1].
Epoxomicin is a cell-permeable and irreversible proteasome inhibitor, primarily the chymotrypsin-like activity.
Aclacinomycin A (Aclarubicin) is an orally active and potent anthracycline antitumor antibiotic. Aclacinomycin A is an inhibitor of topoisomerase I and II. Aclacinomycin A inhibits synthesis of nucleic acid, especially RNA. Aclacinomycin A might inhibit the 26S protease complex as well as the ubiquitin-ATP-dependent proteolysis[1][2][3].
Bortezomib (PS-341) is a potent 20S proteasome inhibitor with a Ki of 0.6 nM.
Tripterin (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.
Z-Leu-Leu-Leu-AMC is a fluorogenic substrate for measuring the chymotrypsin-like protease activity of the 20S proteasome[1].
Proteasome-IN-1 is a proteasome inhibitor extracted from patent WO 2013142376 A1.
PTP1B-IN-9 is a ubiquitin-proteasome system (UPS)-stressor. PTP1B-IN-9 inhibits ubiquitin-mediated protein degradation upstream of the 20S proteasomal catalytic activites. PTP1B-IN-9 triggers a ubiquitin-proteasome-system (UPS)-stress response without affecting 20S proteasome catalytic activities. Anticancer activity[1].
Suc-Gly-Gly-Phe-pNA is the chymotrypsin substrate with an Km value of 1.6 mM[1][2].