Ubiquitin Isopeptidase Inhibitor I, G5 is a caspase-independent inducer of cell necrosis that induces cell death via the death receptor pathway (IC50 of 1.76 and 1.6 μM in E1A and E1A/C9DN cells, respectively).

The ubiquitin speci c protease 3 USP3 is a deubiquitinating enzyme for uH2A and uH2B.

1-ethyl-6-fluoro-4-oxo-7-[4-(3-phenylpropanoyl)piperazin-1-yl]-1,4-dihydroquinoline-3-carboxylic acid is a compound used as a molecular structural unit and is a SMURF1 inhibitor.

NSC-632839 (Ubiquitin Isopeptidase Inhibitor II) is a nonselective isopeptidase inhibitor, which inhibits USP2 (EC50: 45±4 μM), USP7 (EC50: 37±1 μM), and SENP2 (EC50: 9.8±1.8 μM).

ML-792 is a specific small ubiquitin-like modifier (SUMO)-activating enzyme (SAE) inhibitor. Compared with NAE/NEDD8 and UAE/ubiquitin (IC50s of 32 μM and >100 μM, respectively), ML-792 is an effective and selective inhibitor of SAE/SUMO1 and SAE/SUMO2 in

USP25/28 inhibitor AZ1 (AZ1) (AZ1) is an inhibitor of ubiquitin specific protease (USP) 25/28

Cbl-b-IN-3 is a potent proto-oncogene-B (CPL-B) inhibitor of casitas B-series lymphoma (ic50 < 1 nM). Cpl-b, a cyclic E3 ubiquitin protein ligase, is involved in the setting of T lymphocyte activation thresholds. Cpl-b negatively regulates p85 in an independent proteolytic manner, and participates in the recruitment of p85 to CD28 and T cell antigen receptor ζ through its E3 ubiquitin ligase activity. Inhibition of PI3K inhibits the enhancement of Cblb-/ -T cell activation.

Navtemadlin (AMG232) is a potent, selective and orally available inhibitor of p53-MDM2 interaction (IC50: 0.6 nM). It binds to MDM2 with a Kd of 0.045 nM.

Z-VAD(OMe)-FMK is a pan-caspase inhibitor with irreversible properties; Z-VAD(OMe)-FMK is also an inhibitor of ubiquitin C terminal hydrolase L1 (UCHL1), which is irreversibly modified by targeting the UCHL1 active site.

Mezigdomide (CC-92480) is a potent, novel, selective and active cereblon E3 ubiquitin ligase modulator (CELMoD) that often acts as a molecular glue. Mezigdomide has antimyeloma activity.

Indole-3-carbinol (I3C), a naturally occurring, orally available cleavage product of the glucosinolate glucobrassicanin, inhibits NF-κB and IκBα kinase activation.

Ginkgolic Acid (Romanicardic acid) C15:1 represses curli genes and prophage genes in EHEC.

Lenalidomide-Br is an analog of the cereblon (CRBN) ligand Lenalidomide for E3 ubiquitin ligase, which is used in the recruitment of CRBN proteins. It is able to utilize linkers to attach to protein ligands to form PROTACs such as the PROTAC STAT3 degrader SD-36.

Torbafylline, a xanthine derivative, is a phosphodiesterase (PDE) inhibitor that attenuates burn-induced protein hydrolysis in rat skeletal muscle through activation of the PDE4/cAMP/EPAC/PI3K/Akt pathway, and inhibits the enhanced ubiquitin-proteasome-dependent protein hydrolysis in skeletal muscle of cancer- and sepsis-prone rats.

m-PEG9-SH is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.

Cbz-NH-PEG12-C2-acid is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.

JTP-0819958 is a selective linear ubiquitin chain assembly complex (LUBAC) inhibitor with an IC50 of 2.8 μM[1]. JTP-0819958 suppress LUBAC-mediated NF-kB activation in vitro[2].

HOIPIN-1 (JTP0819958) is a selective and potent inhibitor of linear ubiquitin chain assembly complex (LUBAC) (IC50 >2.8 μM).HOIPIN-1 inhibits LUBAC-mediated NF-kB activation.

USP28-IN-4 is a potent USP28 inhibitor with an IC50 value of 0.04 μM against USP28. USP28-IN-4 exhibits anticancer activity and inhibits USP2, USP7, USP8, USP9x, UCHL3 and UCHL5. USP28-IN-4 is cytotoxic to human colorectal and lung squamous carcinoma cells and dose-dependently downregulates c-Myc cellular levels through the ubiquitin-proteasome system. -proteasome system to dose-dependently downregulate cellular levels of c-Myc.

USP28-IN-3 is a highly selective USP28 inhibitor with an IC50 value of 0.1 μM against USP28.USP28-IN-3 exhibits anticancer activity and inhibits USP2, USP7, USP8, USP9x, UCHL3, and UCHL5.USP28-IN-3 is cytotoxic to human colorectal and lung squamous carcinoma cells, inhibiting c-cells and c-neutralizing c-neutralizing c-neutralizing c-neutralizing c-neutralizing c-neutralizing c-neutralizing c-cells through the ubiquitin-proteasome system. -proteasome system to dose-dependently downregulate cellular levels of c-Myc.

Arimoclomol (BRX-220 free base) is a co-inducer of heat shock proteins (HSP) and can be used in studies about the treatment of amyotrophic lateral sclerosis (ALS).

FKBP12 PROTAC dTAG-7 (dTAG-7) is a heterobifunctional compound that selectively degrades the BET bromodomain transcriptional co-activator BRD4 by connecting BET bromodomains to the E3 ubiquitin ligase CRBN. Additionally, it serves as a degrader of FKBP12F36V when FKBP12F36V is expressed in-frame with a targeted protein.

E3 ligase Ligand 23 is a cereblon binding agent that degrades Ikaros or Aiolos via the ubiquitin proteasome.

VH032 commonly used as a precursor to a PROTAC that hijacks VHL as the E3 ubiquitin ligase component.VH032 is a VHL/HIF-1α interaction inhibitor with a KdPROTACs, which can recruit von Hippel-Lindau (VHL) proteins as a ligand of VHL.

SJB3-019A is a potent, potent and novel ubiquitin-specific protease 1 (USP1) inhibitor, which promotes ID1 degradation and cytotoxicity in K562 cells 5 times more than SJB2-043, with IC50 of 0.0781 μM. SJB3-019A inhibits cell proliferation and causes cell apoptosis.

MI-773 (SAR405838 (MI 773)) is an orally available MDM2 antagonist with Ki of 0.88 nM. Phase 1.

alphaSYN-IN-NAB2, a neuron-protective agent, is a protein encoded by the NAB2 gene. NAB2 effectively and selectively protects a variety of cells from alpha-SYN toxicity. NAB2 promotes endosomal transport dependent on E3 ubiquitin ligase Rsp5/Nedd4. NAB2 identifies a viable molecular node in alpha-SYN biology that corrects multiple aspects of its underlying pathology, including dysfunctional endosomes and endoplasmic reticulum to Golgi vesicles transport. NAB2 is involved in cellular processes such as cell differentiation, apoptosis and stress response, and can be used to study cancer, neurodevelopment and neuronal activity.

USP30 inhibitor 18 is a selective USP30 inhibitor with an IC50 of 0.02 μM. USP30 inhibitor 18 increases protein ubiquitination and accelerates mitophagy[1]. [1]. Arthur F Kluge, et al. Novel highly selective inhibitors of ubiquitin specific protease 30 (USP30) accelerate mitophagy. Bioorg Med Chem Lett. 2018 Aug 15;28(15):2655-2659.

NSC-697923 (2-[(4-methylphenyl)sulfonyl]-5-nitrofuran), a potent inhibitor of UBE2N (ubiquitin-conjugating enzyme E2 N, Ubc13), exhibits its role in inducing cell death in neuroblastoma (NB) cells through two distinct mechanisms. In p53 wild-type NB cells, NSC-697923 promotes the nuclear importation of p53, thereby triggering cell death. Meanwhile, in p53 mutant NB cells, NSC-697923 activates the JNK-mediated apoptotic pathway, leading to cell death. Additionally, NSC-697923 inhibits DNA damage and NF-κB signaling, further contributing to its antitumor activity.

Ubiquitination-IN-1 is an inhibitor of ubiquitination and Cksl-Skp2 protein-protein interaction (IC50: 0.17 μM).

Ubiquitination-IN-2 is a potent inhibitor of E1-E2 protein−protein interactions (PPI), displaying inhibitory activity with a dissociation constant (Kd) of 0.72 μM for the ubiquitin E1 (Uba1) enzyme. By blocking the transfer of ubiquitin from E1 to E2, Ubiquitination-IN-2 serves as a valuable tool in cancer research [1].

Nutlin-3 is an MDM2 antagonist.Nutlin-3 inhibits the MDM2-p53 interaction (IC50: 0.09 μM) and activates p53. Antiproliferative agent; chemotherapeutic agent; induces apoptosis in Y cells.

P005091 (P5091) is a selective and potent inhibitor of ubiquitin-specific protease 7 (USP7) with EC50 of 4.2 μM.

TAK-243 (MLN7243) is a selective inhibitor of the ubiquitin-activating enzyme UAE (IC50=1 nM). TAK-243 blocks ubiquitin binding and disrupts mono-ubiquitin signaling as well as overall protein ubiquitination. TAK-243 exhibits antitumor activity and promotes apoptosis.

COH000 is a covalent and irreversible inhibitor of small ubiquitin-like modifier (SUMO)-activating enzyme and inhibited SUMOylation (IC50: ~ 0.2 μM in vitro).

ML364 is an inhibitor of ubiquitin specific peptidase 2 (USP2) and can be used for the research of breast cancer.

P 22077 (P22077) is an inhibitor of ubiquitin-specific protease USP7 with EC50 of 8.6 μM. It also inhibits the closely related USP47.

BAY 11-7082 (BAY 11-7821) is an NF-κB inhibitor that inhibits TNFα-induced IκBα phosphorylation (IC50=10 μM). BAY 11-7082 is also an inhibitor of the ubiquitin-specific proteases USP7 and USP21 (IC50=0.19/0.96 μM).

Azido-PEG2-CH2COOH is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.

Thiol-PEG3-acid is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.

Azide-PEG16-alcohol is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.

Folate-PEG3-azide is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.

Folate-PEG2-amine is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.

FmocNH-PEG4-t-butyl ester is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.

MS6105 is a chimeric LDH protein hydrolysis-targeted PROTAC that degrades LDHA and LDHB efficiently, with its activity contingent on both time and the ubiquitin-proteasome system, exhibiting anticancer properties [1]. Additionally, as a click chemistry reagent possessing an Alkyne group, MS6105 can partake in copper-catalyzed azide-alkyne cycloaddition (CuAAc) reactions with Azide-bearing molecules.

Boc-Aminooxy-PEG2 is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.

HS-PEG5-CH2CH2NH2 is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.

Azido-PEG11-acid is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.

Mal-PFP ester is a alkyl/ether-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.

TCO-PEG5-maleimide is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.