Icapamespib (PU-HZ151) is a potent HSP90 inhibitor with an EC50 of 5 nM. Icapamespib is able to cross blood-brain barrier.

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

USP30 inhibitor 18 is a selective USP30 inhibitor with an IC50 of 0.02 μM. USP30 inhibitor 18 increases protein ubiquitination and accelerates mitophagy.

USP30 inhibitor 11 is a selective and potent ubiquitin specific peptidase 30 (USP30) inhibitor with an IC50 of 0.01 µΜ, the example 83 extracted from patent WO2017009650A1. USP30 inhibitor 11 is used for the study of cancer and conditions involving mitochondrial dysfunction.

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.

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=hLMP7/mLMP7) subunits of the immunoproteasome. KZR-616 maleate has the potential for the research of multiple autoimmune diseases.

DTHIB is a direct and selective heat shock factor 1 (HSF1) inhibitor with a Kd of 160 nM for DTHIB binding to the HSF1 DNA binding domain (DBD). DTHIB inhibits HSF1 cancer gene signature (HSF1 CaSig) and selectively stimulates degradation of nuclear HSF1. DTHIB has potently anticancer activities and can be used for prostate cancer research.

HA15-Biotin is a chemical probe that consists of HA15 and biotin attached on the amide part of HA15. HA15-Biotin exhibits similar levels of activity to HA15. HA15-Biotin can be used for proteomic analysis.

LCAHA (LCA hydroxyamide) is a deubiquitinase USP2a inhibitor with IC50s of 9.7 μM and 3.7μM in Ub-AMC Assay and Di-Ub Assay, respectively. LCAHA destabilizes Cyclin D1 and induces G0/G1 arrest by inhibiting deubiquitinase USP2a.

18α-Glycyrrhetinic acid, a diet-derived compound, is an inhibitor of NF-kB and an activator of proteasome, which serves as pro-longevity and anti-aggregation factor in a multicellular organism. 18α-Glycyrrhetinic acid induces apoptosis.

Aminohexylgeldanamycin (AHGDM) hydrochloride, a Geldanamycin derivative, is a potent HSP90 inhibitor. Aminohexylgeldanamycin hydrochloride shows antiangiogenic and antitumor activities.

Cbl-b-IN-1 (example 519) is a Cbl-b inhibitor, extracted from patent WO2019148005A1, with an IC50 <100 nM.

PU-H54 is potent, selective Grp94 inhibitor.

PR-39 TFA, a natural proline- and arginine-rich antibacterial peptide, is a noncompetitive, reversible and allosteric proteasome inhibitor. PR-39 TFAreversibly binds to the α7 subunit of the proteasome and blocks degradation of NF-κB inhibitor IκBα by the ubiquitin-proteasome pathway. PR-39 TFA stimulates angiogenesis, inhibits inflammatory responses and significant reduces myocardial infarct size in mice.

PR-39, a natural proline- and arginine-rich antibacterial peptide, is a noncompetitive, reversible and allosteric proteasome inhibitor. PR-39 reversibly binds to the α7 subunit of the proteasome and blocks degradation of NF-κB inhibitor IκBα by the ubiquitin-proteasome pathway. PR-39 stimulates angiogenesis, inhibits inflammatory responses and significant reduces myocardial infarct size in mice.

Acetyl-Calpastatin(184-210)(human) TFA is a potent, selective and reversible calpain inhibitor with Ki values of 0.2 nM and 6 μM for μ-calpain and cathepsin L, respectively.

Acetyl-Calpastatin(184-210)(human) is a potent, selective and reversible calpain inhibitor with Ki values of 0.2 nM and 6 μM for μ-calpain and cathepsin L, respectively.

10,11-Dehydrocurvularin is a prevalent fungal phytotoxin and an antibiotic. 10,11-Dehydrocurvularin is a strong activator of the heat shock response. 10,11-Dehydrocurvularin inhibits TGF-β signalling pathway. Anti-tumorous activity.

Eupalinolide A, isolated from Eupatorium lindleyanum, induces the expression of HSP70 via the activation of HSF1 by inhibiting the interaction between HSF1 and HSP90.

Geldanamycin-FITC, a Geldanamycin fluorescent probe, can be used in a fluorescence polarization assay for HSP90 inhibitors. Geldanamycin-FITC also can be used for detection of cell surface HSP90.

Aminohexylgeldanamycin (AHGDM), a Geldanamycin derivative, is a potent HSP90 inhibitor. Aminohexylgeldanamycin shows antiangiogenic and antitumor activities.

17-AEP-GA, an HSP90 antagonist, is a potent inhibitor of glioblastoma cell proliferation, survival, migration and invasion. ADCs Toxin.

17-GMB-APA-GA is an ADC Cytotoxin. 17-GMB-APA-GA is a potent HSP90 inhibitor and used for latent T. gondii infection research.

(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.

Arimoclomol citrate (BRX-220 citrate) is a co-inducer of heat shock proteins (HSP). Arimoclomol citrate protects motor neurons by enhancing Hsp expression, thus directly affecting protein aggregation and clearance of misfolded assemblies via the proteasome-ubiquitin system.

HS-10 is a novel Hsp90 inhibitor increases the Tm of Hsp90 by 10.5°C.

P 217564 is a potent, selective, irreversible second generation inhibitor of USP7 with IC50 of 0.48 uM, with similar potency against USP47 and no significant activity aginst other DUBs.

BC-1471 is a selective, small-molecule deubiquitinase STAM-binding protein (STAMBP) inhibitor (IC50=0.33 uM) that interrupts STAMBP-Ub-NALP7 interaction.

A novel potent ubiquitin-specific protease USP1 inhibitor with IC50 of 78.1 nM, 5 times more potent than SJB2-043 in promoting ID1 degradation and cytoxicity in K562 cells.

(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.