proteasome

Bortezomib (LDP 341) is a 20S proteasome inhibitor (Ki=0.6 nM) that is reversible and selective. Bortezomib has antitumor activity and inhibits NF-κB, which can disrupt the cell cycle and induce apoptosis.

MG-132 (Z-Leu-Leu-Leu-al) is a 26S proteasome inhibitor (IC50=100 nM) that is cell-permeable and reversible. MG-132 acts as an autophagy activator and also induces apoptosis.

Tripterin (Celastrol) is a natural product, a proteasome inhibitor that inhibits the pancreatic rennet-like activity of the 20S proteasome (IC50=2.5 μM). Tripterin has anti-inflammatory, anti-infectious, and immunomodulatory properties.

Ixazomib citrate (MLN9708) is a prodrug of Ixazomib (MLN-2238) and an orally bioavailable second-generation proteasome inhibitor with an IC50 of 3.4 nM, exhibiting potential antineoplastic activity.

PD151746 is a calpain inhibitor with a 20-fold selectivity for u-calpain (Ki = 0.26 ± 0.03 μM) over m-calpain (Ki = 5.33 ± 0.77 μM). Its IC50 values are 0.26 ± 0.03 μM (Ki for μ-calpain) and 5.33 ± 0.77 μM (Ki for m-calpain) [1]. In vitro, PD151746 targets calpain and reduces oxLDL-induced cytotoxicity [2].

VR23 is a potent proteasome inhibitor. Data shows IC50 =1 nM for trypsin-like proteasomes, IC50=50-100 nM for chymotrypsin-like proteasomes, and IC50=3 μM for caspase-like proteasomes.

MUN57694 is an inhibitor of 26S proteasome.

K-7174 dihydrochloride is a proteasome and GATA inhibitor that inhibits neuronal degeneration and induces apoptosis.

RAMB4 (PTP1B-IN-9) is a ubiquitin-proteasome system (UPS)-stressor,with anticancer activity.

(R)-MG-132 (Z-Leu-D-leu-leu-al) is the enantiomer of MG-132.

TCH-165 is a small molecule modulator of proteasome assembly, resulting in an increase in 20S levels. The increase in the level of free 20S corresponds to enhanced proteolysis of IDPs.

Carfilzomib (PR-171) is a proteasome inhibitor that irreversibly binds to the chymotrypsin of the 20S proteasome. Carfilzomib has antitumor activity and may be used to treat multiple myeloma.

Proteasome-IN-6 (Compound J-80) inhibits the β5 catalytic subunit of the Trypanosoma brucei 20S proteasome, effectively blocking T. b. brucei, T. b. gambiense, and T. b. rhodesiense with EC50 values of 157 nM, 220 nM, and 156 nM, respectively. Additionally, Proteasome-IN-6 has demonstrated antitrypanosomal activity in a mouse model.

Proteasome-IN-7 (Compound 6f) is a macrolactam-based epoxyketone proteasome inhibitor with an IC50 value of 37.92 nM against the 20S proteasome ChT-L subunit. It exhibits potent antiproliferative effects on multiple myeloma, acute lymphoblastic leukemia, and non-small cell lung cancer.

Ixazomib (MLN2238) , a second generation, boron-containing peptide proteasome inhibitor (PI), inhibits the chymotrypsin-like proteolytic (β5) site of the 20S proteasome (IC50/Ki: 3.4/0.93 nM, in cell-free assays), also inhibits the caspase-like (β1) and trypsin-like (β2) proteolytic sites (IC50: 31/3500 nM).

18α-Glycyrrhetinic acid (Enoxolone) is an inhibitor of NF-kB and an activator of the proteasome, and functions as a longevity-promoting and anti-aggregation factor in multicellular organisms. It induces apoptosis.

Pepstatin (Pepsin Inhibitor S 735A) is an aspartate protease inhibitor that also inhibits HIV protease activity with specific and oral activity. Pepstatin inhibits autophagy.

Tomatine (lycopersicin) is an antiproliferatve agent of breast adenocarcinoma cells.

ONX-0914 (PR-957) is a potent and highly specific immunoproteasome inhibitor with minimal cross-reactivity to the constitutive proteasome.

Calpeptin is a potent, cell-permeable calpain inhibitor.

Proteasome-IN-5, also known as compound 5, acts as a proteasome inhibitor [1].

Proteasome β2c i-IN-1 (compound 37) is a selective inhibitor of the β2c and β2i subunits of the human proteasome [1].

Proteasome inhibitor IX (PS-IX) is an inhibitor of chymotrypsin-like activity of the 20S proteasome (IC50 ~1 μM). Proteasome inhibitor IX shows potent anticancer activity. Proteasome inhibitor IX exhibits HCT116 p53+ + cells growth inhibitory activity(IC50 = 1.49 μM).

Proteasome-IN-1 is an inhibitor of proteasome.