1. Signaling Pathways
  2. Metabolic Enzyme/Protease
  3. E1/E2/E3 Enzyme

E1/E2/E3 Enzyme

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.

E1/E2/E3 Enzyme Related Products (69):

Cat. No. Product Name Effect Purity
  • HY-15676
    Idasanutlin Inhibitor 99.90%
    Idasanutlin (RG7388) is a potent and selective MDM2 antagonist, inhibiting p53-MDM2 binding, with an IC50 of 6 nM.
  • HY-12296
    AMG 232 Inhibitor 99.90%
    AMG 232 is a potent, selective and orally available inhibitor of p53-MDM2 interaction, with an IC50 of 0.6 nM. AMG 232 binds to MDM2 with a Kd of 0.045 nM.
  • HY-10029
    Nutlin-3a Inhibitor 98.07%
    Nutlin-3a, an active enantiomer of Nutlin-3, is a potent murine double minute (MDM2) inhibitor (IC50=90 nM). Nutlin-3a inhibits MDM2-p53 interactions and stabilizes the p53 protein, and induces cell autophagy and apoptosis. Nutlin-3a has the potential for the study of TP53 wild-type ovarian carcinomas.
  • HY-100487
    TAK-243 Inhibitor 99.43%
    TAK-243 (MLN7243) is a first-in-class, selective ubiquitin activating enzyme, UAE (UBA1) inhibitor (IC50=1 nM), which blocks ubiquitin conjugation, disrupting monoubiquitin signaling as well as global protein ubiquitination. TAK-243 (MLN7243) induces endoplasmic reticulum (ER) stress, abrogates NF-κB pathway activation and promotes apoptosis.
  • HY-50696
    Nutlin-3 Inhibitor 98.32%
    Nutlin-3 is a commercial available p53-MDM2 inhibitor, with Ki of 90 nM.
  • HY-126075
    WS-383 free base Inhibitor
    WS-383 free base is a potent, selective and reversible inhibitor of DCN1-UBC12 interaction, with an IC50 of 11 nM. WS-383 free base inhibits Cul3/1 neddylation, induces accumulation of p21, p27 and NRF2.
  • HY-133558
    VII-31 Activator
    VII-31 is a potent NEDDylation pathway activator to inhibit the tumor progression in vitro and in vivo. VII-31 induces apoptosis via intrinsic and extrinsic pathways.
  • HY-122882
    HOIPIN-8
    HOIPIN-8 is a potent inhibitor of linear ubiquitin chain assembly complex (LUBAC) with an IC50 of 11 nM. HOIPIN-8 is a HOIPIN-1 derivative with enhanced the potency by 255-fold in the petit-LUBAC inhibition, and 10-fold and 4-fold in the LUBAC- and TNF-α-mediated NF-κB activation, respectively than HOIPIN-1. HOIPIN-1 is a promising tool to explore the cellular functions of LUBAC.
  • HY-N0077
    Ginkgolic Acid Inhibitor 99.59%
    Ginkgolic Acid is a natural compound that inhibits SUMOylation with an IC50 of 3.0 μM in in vitro assay.
  • HY-13296
    PYR-41 Inhibitor >98.0%
    PYR-41 is a selective and cell permeable inhibitor of ubiquitin-activating enzyme E1 with an IC50 of < 10 μM, with little activity at E2 and E3.
  • HY-18658
    Siremadlin Inhibitor 99.19%
    Siremadlin (NVP-HDM201) is a potent, orally bioavailable and highly specific p53-MDM2 interaction inhibitor.
  • HY-10959
    RG7112 Inhibitor 99.91%
    RG7112 is a potent, selective, first clinical, orally active and blood-brain barrier crossed MDM2-p53 inhibitor, with an IC50 of 18 nM and a KD of 11 nM for binding to MDM2.
  • HY-100507
    Avadomide Agonist 99.53%
    Avadomide (CC 122) is an orally active cereblon modulator. Avadomide modulates cereblon E3 ligase activity and induces apoptosis of diffuse large B-cell lymphoma (DLBCL) cell lines. Avadomide exhibits potent antitumor and immunomodulatory activities.
  • HY-108702
    ML-792 Inhibitor 99.66%
    ML-792 is a potent and selective inhibitor of SAE/SUMO1 and SAE/SUMO2 in enzymatic assays (IC50 values of 3 and 11 nM, respectively) compared with NAE/NEDD8 and UAE/ubiquitin (IC50 values of 32 μM and >100 μM, respectively).
  • HY-103236
    NSC232003 Inhibitor 98.66%
    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.
  • HY-120929
    BI8622 Inhibitor 99.35%
    BI8622 is a specific inhibitor of the ubiquitin ligase HUWE1 with an IC50 of 3.1 μM.
  • HY-114166
    2-D08 Inhibitor 99.04%
    2-D08 is a cell permeable, mechanistically unique inhibitor of protein SUMOylation. 2-D08 also inhibits Axl with an IC50 of 0.49 nM.
  • HY-100237
    SZL P1-41 Inhibitor 99.18%
    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.
  • HY-120934
    C25-140 99.84%
    C25-140, a first-in-class, fairly selective TRAF6-Ubc13 inhibitor, directly binds to TRAF6, and blocks the interaction of TRAF6 with Ubc13. C25-140 lowers TRAF6 activity, reduces NF-κB activation, and combats autoimmunity.
  • HY-19817
    PRT4165 Inhibitor >98.0%
    PRT4165 is a potent inhibitor of PRC1-mediated H2A ubiquitylation.
Isoform Specific Products

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