E1/E2/E3 Enzyme Inhibitor

NSC697923 is a potent UBE2N (ubiquitin-conjugating enzyme E2 N, Ubc13) inhibitor. NSC697923 induces neuroblastoma (NB) cell death via promoting nuclear importation of p53 in p53 wild-type NB cells. NSC697923 also induces cell death in p53 mutant NB cells by activation of JNK-mediated apoptotic pathway. NSC697923 inhibits DNA damage and NF-κB signaling. Antitumor activity.

DKM 2-93 is a relatively selective inhibitor of UBA5 with an IC₅₀ of 430 μM.

LS-102 is a selective E3 ubiquitin ligase synoviolin (Syvn1) inhibitor. LS-102 inhibits the autoubiquitination of synoviolin with an IC₅₀ of 35 μM. LS-102 has the potential for rheumatoid arthritis treatment.

Siremadlin (NVP-HDM201) is a potent, orally bioavailable and highly specific p53-MDM2 interaction inhibitor.

SZL P1-41 is a specific Skp2 inhibitor, binds to the F-box domain of Skp2 to prevent Skp1 association and Skp2 SCF complex formation. SZL P1-41, like Skp2 deficiency, augments p27-mediated apoptosis/senescence, while it impairs Akt-driven glycolysis. Anti-tumor activities.

MD-224 is a first-in-class and highly potent small-molecule human murine double minute 2 (MDM2) degrader based on the proteolysistargeting chimera (PROTAC) concept. MD-224 consists of ligands for Cereblon and MDM2. MD-224 induces rapid degradation of MDM2 at concentrations <1 nM in human leukemia cells, and achieves an IC₅₀ value of 1.5 nM in inhibition of growth of RS4;11 cells. MD-224 has the potential to be a new class of anticancer agent. MD-224 is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

Brigimadlin (BI 907828) is an orally active E3 ubiquitin-protein ligase MDM-2 inhibitor, preventing MDM-2 from negatively regulating the tumor suppressor p53. Brigimadlin can be used for antineoplastic research.

Skp2 Inhibitor C1 (SKPin C1) is an S-phase kinase-related protein 2 (Skp2) inhibitor with an inhibitory effect on metastatic melanoma cells. Skp2 Inhibitor C1 slows the cell cycle, inhibits cell proliferation, and triggers apoptosis.

Alrizomadlin (APG-115) is an orally active MDM2 protein inhibitor binding to MDM2 protein with IC₅₀ and K_i values of 3.8 nM and 1 nM, respectively. Alrizomadlin blocks the interaction of MDM2 and p53 and induces cell-cycle arrest and apoptosis in a p53-dependent manner.

NSC232003 is a highly potent and cell-permeable UHRF1 inhibitor, which inhibits DNA methylation in vitro and disrupts DNMT1/UHRF1 interactions at a cellular level.

BI8622 is a specific inhibitor of the ubiquitin ligase HUWE1 with an IC₅₀ of 3.1 μM. BI8622 can decrease the protein expression levels of c-myc and glycolytic markers as well as immune modulatory markers after HUWE1 inhibition in triple-negative breast cancer (TNBC) cell lines. BI8622 significantly protects against cisplatin (HY-17394)-induced acute kidney injury (AKI). BI8622 significantly reduces the growth of multiple myeloma (MM) cell lines and induces cell cycle arrest. BI8622 can prevent HUWE1-dependent TTBK2 ubiquitination. BI8622 can be studied in research for various diseases including medulloblastoma, acute kidney injury, breast cancer and MM.

Milademetan (DS-3032) is a specific and orally active MDM2 inhibitor for the research of acute myeloid leukemia (AML) or solid tumors. Milademetan (DS-3032) induces G1 cell cycle arrest, senescence and apoptosis.

Hinokiflavone is a novel modulator of pre-mRNA splicing activity extracted from plants with anti-inflammatory, anti-tumor and antiviral activities. Hinokiflavone is also a potent inhibitor for matrix metalloproteinases (MMPs). Hinokiflavone attenuates the virulence of Methicillin (HY-121544)-resistant staphylococcus aureus by inhibiting caseinolytic protease P (ClpP) with an IC₅₀ value of 34.36 mg/mL. Hinokiflavone induces apoptosis via the reactive oxygen species-mitochondria-mediated apoptotic pathway and inhibits tumor cell migration and invasion. Hinokiflavone is a SUMO protease inhibitor against sentrin-specific protease 1 (SENP1) activity.

RG7112 is a potent, selective, orally active and blood-brain barrier crossed MDM2-p53 inhibitor, with an IC₅₀ of 18 nM and a K_D of 11 nM for binding to MDM2.

Serdemetan (JNJ-26854165) is a potent anticancer agent with radiosensitizing activity. Serdemetan exhibits antiproliferative activity in various p53 wild-type tumor cells. Serdemetan also antagonizes the Mdm2-HIF1α axis leading to decreased levels of glycolytic enzymes.

GS143 is a selec­tive IκBα ubiquitination inhibitor with an IC₅₀ of 5.2 μM for SCF^βTrCP1-mediated IκBα ubiquitylation. GS143 sup­presses NF-κB acti­va­tion and tran­scrip­tion of tar­get genes and does not inhibit proteasome activity. GS143 has anti-asthma effect.

NSC2805 is a WWP2 ubiquitin ligase inhibitor that can significant inhibit WWP2 activity with an IC₅₀ of 0.38 μM. NSC2805 can be used for the research of cancer.

CP26 is a small molecule inhibitor of protein dislocation from the ER lumen to the cytosol. CP26 targets the Hrd1 complex, inhibits ERAD, and induces ER stress.

BRD5529 is an effective dose-dependent CARD9-TRIM62 protein–protein interaction (PPI) inhibitor with an IC₅₀ value of 8.6 μM. BRD5529 has potency and complete inhibition of CARD9 ubiquitinylation in vitro, also has favorable solubility. BRD5529 can be used for the research of inflammatory bowel disease (IBD) such as Crohn’s disease (CD) and ulcerative colitis (UC).

Solasodine (Purapuridine) is a steroidal alkaloid that occurs in plants of the Solanaceae family. Solasodine induces apoptosis by inhibiting the p53-MDM2 complex, p21Waf1/Cip1, and Bcl-2 proteins. Solasodine has neuroprotective, antifungal, hypotensive, anticancer, antiatherosclerotic, antiandrogenic and anti-inflammatory activities.