E1/E2/E3 Enzyme
E1 activating enzyme; E2 conjugating enzyme; E3 ligating enzyme; Ubiquitin activating enzyme; Ubiquitin conjugating enzyme; Ubiquitin ligase
Ubiquitin (UB) is a protein modifier that regulates many essential cellular processes. To initiate protein modification by UB, the E1 enzyme activates the C-terminal carboxylate of UB to launch its transfer through the E1-E2-E3 cascade onto target proteins. The E1 enzyme is the activating enzyme, to which ubiquitin is attached in an ATP-dependent reaction by a thioester bond. The E2 enzyme is the conjugating enzyme, to which the ubiquitin is transferred from the E1. The E3 is the ubiquitin ligase, which directly or indirectly catalyzes the transfer of the ubiquitin to the target protein (the substrate), with the formation of an isopeptide bond.
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E1/E2/E3 Enzyme Inhibitors
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E1/E2/E3 Enzyme Agonists
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E1/E2/E3 Enzyme Antagonist
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E1/E2/E3 Enzyme Activators
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E1/E2/E3 Enzyme Modulators
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E1/E2/E3 Enzyme Inducer
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E1/E2/E3 Enzyme Degraders
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E1/E2/E3 Enzyme Control
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E1/E2/E3 Enzyme Ligands
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Ubiquitin Enzymes Proteins
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E1/E2/E3 Enzyme Related Products (319)
Related Products (319)
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Recombinant Proteins (116)
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Antibodies (88)
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Related Compound Screening Libraries (1)
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Streptonigrin
0 ImagesStreptonigrin (Bruneomycin) is an orally active antibiotic and pan-PAD inhibitor, inhibiting PAD1, PAD2, PAD3 and PAD4 with IC50 of 48.3 μM, 26.1 μM, 0.43 μM and 2.5 μM, respectively. Streptonigrin inhibits SENP1 (IC50 of 0.518 μM) and reduces HIF1α. Streptonigrin increases p53 and Apoptosis. Streptonigrin shows antiviral activity against Rauscher murine leukemia virus. Streptonigrin has immunosuppressive effects. Streptonigrin has antitumor activity against osteosarcoma.
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CRBN-6-5-5-VHL
0 ImagesCRBN-6-5-5-VHL is a potent and selective VHL E3 ligand-based Cereblon (CRBN) PROTAC degrader with a DC50 value of 1.5 nM. CRBN-6-5-5-VHL forms a heterotrimeric complex with CRBN and VHL E3 ligase, thereby promoting CRBN ubiquitination and proteasomal degradation without inducing VHL degradation. CRBN-6-5-5-VHL protects myeloma from the toxic effects of IMiDs. CRBN-6-5-5-VHL can be used in the research of multiple myeloma.
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DI-1859
0 ImagesDI-1859 is a DCN1 and cullin 3 inhibitor with a Ki of <1 nM against human DCN1. DI-1859 forms a covalent bond with Cys115 of DCN1, cleaves its dimethylamino group, disrupts the DCN1-UBC12 interaction, and selectively inhibits the neddylation modification of cullin 3 relative to other cullins. DI-1859 inactivates CRL3, promotes the accumulation of NRF2 and SLC7A11, upregulates the expression of HO-1 and NQO1, reduces reactive oxygen species (ROS) levels, enhances insulin signaling, promotes insulin secretion, activates RhoA, regulates the phosphorylation of AKT, without completely blocking the neddylation modification of cullin 3 or restoring the expression of IRS-1. DI-1859 can be used in the research of Acetaminophen (HY-66005)-induced hepatotoxicity, hyperglycemia, metabolic dysfunction-associated steatotic liver disease, insulin resistance, breast cancer and lung cancer.
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CC0651
0 ImagesCC0651 is an allosteric inhibitor of the human Cdc34 ubiquitin-conjugating enzyme. CC0651 potently (IC50=1.72 μM) inhibits the ubiquitination of p27Kip1, as confirmed by dose-response analysis.
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PYZD-4409
0 ImagesPYZD-4409 is a specific inhibitor of the ubiquitin-activating enzyme UBA1 with an IC50 of 20 μM (cell-free enzymatic assay). PYZD-4409 induces cell death in malignant cells and preferentially inhibits the clonogenic growth of primary acute myeloid leukemia cells.
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NAcM-OPT
0 ImagesNAcM-OPT is an orally bioavailable cullin neddylation 1 (DCN1) inhibitor, which potently inhibits the DCN1-UBE2M interaction.
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Vialinin A
0 ImagesSynonyms: Terrestrin AVialinin A (Terrestrin A) is a p-terphenyl compound that can be derived from a Chinese edible mushroom. Vialinin A is an inhibitor of ubiquitin-specific peptidase 4 (USP4) and has anti-inflammatory and antioxidant properties. Vialinin A can alleviate cerebral ischaemia-reperfusion injury-induced neurological deficits and neuronal apoptosis. Vialinin A promotes activation of Keap1-Nrf2-ARE signaling pathway and increases the protein degradation of Keap1. Vialinin A possesses various pharmacological activities in cancer, Kawasaki disease, asthma, and pathological scarring. Vialinin A is a potent inhibitor of TNF-α, USP4, USP5, and sentrin/SUMO-specific protease 1 (SENP1). Vialinin A can be studied in reseach for autoimmune diseases, cancer and ischaemic stroke.
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KH-4-43
0 ImagesKH-4-43 is an inhibitor of E3 CRL4. KH-4-43 inhibits E3 CRL4's core ligase complex and exhibits anticancer activity. KH-4-43 has a binding Kd to E3 ROC1-CUL4A CTD or the highly related ROC1-CUL1 CTD at 83 nM or 9.4 μM, respectively.
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PELI1-IN-1
0 ImagesPELI1-IN-1 (compound 3d) is a potent inhibitor of PELI1, E3 ubiquitin ligase. PELI1-IN-1 has anti-tumPELI1-IN-1, a Resveratrol (HY-16561) derivative, is an orally active PELI1 Inhibitor (Kd = 8.2 μM). PELI1-IN-1 markedly interrupts the interaction of PELI1 and SNAIL/SLUG, and inhibits the K63-polyubiquitization of SNAIL/SLUG by PELI1, subsequently downregulating the protein levels of epithelial-mesenchymal transition (EMT) effectors SNAIL/SLUG. PELI1-IN-1 significantly reduces the level of SNAIL, SLUG and Vimentin without affecting the PELI1 expression. PELI1-IN-1 targets the FHA domain of PELI1 and disrupts the interaction, leading to the anti-metastasis of TNBC cells in vitro and in vivo. PELI1-IN-1 shows no evident toxicity in vivo.
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EN450
0 ImagesEN450 is a cysteine-reactive covalent molecular glue degrader targeting NF-κB. EN450 interacts with allosteric C111 in the E2 ubiquitin ligase UBE2D. EN450 induces the ternary complex formation between UBE2D and NFKB1. EN450 exerts its anti-proliferative effects through a Cullin E3 ligase and proteasome-dependent mechanism.
