Proteasome

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.

PR-924 is a selective tripeptide epoxyketone immunoproteasome subunit LMP-7 inhibitor with an IC50 of 22 nM. PR-924 covalently modifies proteasomal N-terminal threonine active sites. PR-924 inhibits growth and triggers apoptosis in multiple myeloma (MM) cells. PR-924 has antitumor activities.

(1S,2S)-Bortezomib is an enantiomer of Bortezomib. Bortezomib is a cell-permeable, reversible, and selective proteasome inhibitor, and potently inhibits 20S proteasome (Ki of 0.6 nM) by targeting a threonine residue. Bortezomib disrupts the cell cycle, induces apoptosis, and inhibits NF-κB. Bortezomib is an anti-cancer agent and the first therapeutic proteasome inhibitor to be used in humans.

ONX-0914 (PR-957) TFA is a selective inhibitor of low-molecular mass polypeptide-7 (LMP7), the chymotrypsin-like subunit of the immunoproteasome.

Zetomipzomib (KZR-616), a first-in-class inhibitor of the immunoproteasome, selectively targets the LMP7 (IC50: 39/57 nM=hLMP7/mLMP7) and LMP2 (IC50: 131/179 nM=hLMP7/mLMP7) subunits of the immunoproteasome.

RA375 is a RPN13 (26S proteasome regulatory subunit) inhibitor. RA375 activates UPR signaling, ROS production and apoptosis. RA375 exhibits ten-fold greater activity against cancer lines than RA190, reflecting its nitro ring substituents and the addition of a chloroacetamide warhead.

PR-39 TFA, a natural proline- and arginine-rich antibacterial peptide, is a noncompetitive, reversible and allosteric proteasome inhibitor.

GSK3494245 (DDD01305143) is a potent, orally active, and selective inhibitor of the chymotrypsin-like activity of the parasite proteasome binding in a site sandwiched between the β4 and β5 subunits (IC50=0.16 μM for WT L.

LXE408 is an orally active, non-competitive and kinetoplastid-selective proteasome inhibitor.

20S Proteasome-IN-1 is a 26S proteasome inhibitor extracted from patent WO2006128196A2 compound 2.

Dazcapistat is a potent calpain inhibitor, with IC50s of <3 μM for calpain 1, calpain 2 and calpain 9, respectively (patent WO2018064119A1, compound 405).

Bortezomib-d8 (PS-341-d8) is the deuterium labeled Bortezomib. Bortezomib (PS-341) is a reversible and selective proteasome inhibitor, and potently inhibits 20S proteasome (Ki=0.6 nM) by targeting a threonine residue. Bortezomib disrupts the cell cycle, induces apoptosis, and inhibits NF-κB. Bortezomib is the first proteasome inhibitor anticancer agent. Anti-cancer activity.

(1S,2R)-Alicapistat ((1S,2R)-ABT-957) is an orally active selective inhibitor of human calpains 1 and 2 for the potential application of Alzheimer's disease (AD).

5-Amino-8-hydroxyquinoline (5A8HQ), a potential anticancer candidate, has promising proteasome inhibitory activity.

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.

20S Proteasome activator 1 is an effective activator of the 20S protease, with IC50 values of 0.3 μM, 0.7 μM and 1.8 μM for trypsin-like sites, chymotrypsin-like sites and caspase-like sites respectively. It can be translated in cellular systems to prevent accumulation of pathogenic A53T mutant alpha-synuclein. 20S Proteasome activator 1 can be used for research on neurodegenerative diseases.

Zetomipzomib (KZR-616) maleate, a first-in-class immunoproteasome inhibitor, selectively targets the LMP7 (IC50: 39/57 nM=hLMP7/mLMP7) and LMP2 (IC50: 131/179 nM=hLMP2/mLMP2) subunits of the immunoproteasome.

FiVe1 is a potent vimentin (VIM; the intermediate filament and mesenchymal marker) inhibitor.

LU-002i is a subunit-selective human proteasome β2c and β2i inhibitor with an IC50 value of 220 nM for β2i.

BC-23 (NSC 45382) is a proteasome inhibitor.

DD1, a proteasome inhibitor, targets Bax activation and P70S6K degradation during acute myeloid leukemia (AML) apoptosis.

ARI-3144 is an excellent substrate for fibroblast activation protein (FAP).