2. Signaling Pathways
  3. PROTAC
  4. Ligands for E3 Ligase

Ligands for E3 Ligase

E3 ligase-recruiting Moiety

Ligands for E3 Ligase

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A PROTAC (Proteolysis Targeting Chimeric Molecule) is a protein degrader comprised of a ligand for E3 ligase (E3 ligase binder), a linker and a ligand for target protein (target binder). The association between an E3 ligase and a target protein induced by a PROTAC will lead to the transfer of ubiquitin and degradation of the targeted protein.

E3 ligases catalyze the transfer of ubiquitin to targeted proteins and determine the specificity of the proteins. There are hundreds of E3 ligases in cells, but only a limited number of them are successfully used in reported PROTACs, such as VHL (von Hippel-Lindau disease tumor suppressor protein), CRBN (Cereblon), MDM2 (the mouse double minute 2 homologue) and IAP (inhibitor of apoptosis).

Ligands for E3 Ligase Isoform Specific Products:

Ligands for E3 Ligase Isoform Comparison
Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-W382038
    E3 ligase Ligand 32 2300099-98-1 99.95%
    E3 ligase Ligand 32 (First product in Example 3) is a ligand for E3 ubiquitin ligase. E3 ligase Ligand 32 can be connected to the ligand for protein by a linker to form PROTACs and can be used for the synthesis of PROTAC SMARCA2/4-degrader-29 (HY-162743).
    E3 ligase Ligand 32
  • HY-W077589
    Lenalidomide-5-aminomethyl hydrochloride 1158264-69-7 98.45%
    Lenalidomide-5-aminomethyl hydrochloride is the Lenalidomide-based cereblon (CRBN) ligand used in the recruitment of CRBN protein. Lenalidomide-5-aminomethyl hydrochloride can be connected to the ligand for protein by a linker to form PROTAC
    Lenalidomide-5-aminomethyl hydrochloride
  • HY-101763A
    (S,R,S)-AHPC monohydrochloride 1448189-80-7 99.83%
    (S,R,S)-AHPC (VH032-NH2; VHL ligand 1) hydrochloride is the VH032-based VHL ligand used in the recruitment of the von Hippel-Lindau (VHL) protein.
    (S,R,S)-AHPC monohydrochloride
  • HY-112078
    (S,R,S)-AHPC-Me 1948273-02-6 99.96%
    (S,R,S)-AHPC-Me (VHL ligand 2) is the (S,R,S)-AHPC-based VHL ligand used in the recruitment of the von Hippel-Lindau (VHL) protein. (S,R,S)-AHPC-Me can be used to synthesize ARV-771, a von Hippel-Landau (VHL) E3 ligase-based BET PROTAC degrader. ARV-771 potently degrades BET protein in castration-resistant prostate cancer (CRPC) cells with a DC50 <1 nM.
    (S,R,S)-AHPC-Me
  • HY-159646
    BMS-986397 2564486-44-6 99.76%
    BMS-986397 is a potent, selective, and orally active cereblon-based molecular glue degrader of casein kinase 1α (CK1α). BMS-986397 induces apoptosis and cell cycle arrest in acute myeloid leukemia (AML) cells. BMS-986397 is a promising agent for the investigation of AML and high-risk myelodysplastic syndromes (HR-MDS).
    BMS-986397
  • HY-103597
    Thalidomide-O-COOH 1061605-21-7 99.85%
    Thalidomide-O-COOH (Cereblon ligand 3) is the Thalidomide-based Cereblon ligand used in the recruitment of CRBN protein. Thalidomide-O-COOH (Cereblon ligand 3) can be connected to the ligand for protein by a linker to form PROTACs.
    Thalidomide-O-COOH
  • HY-41547
    Thalidomide 4-fluoride 835616-60-9 99.92%
    Thalidomide 4-fluoride (Cereblon ligand 4) is the Thalidomide-based Cereblon ligand used in the recruitment of CRBN protein. Thalidomide 4-fluoride (Cereblon ligand 4) can be connected to the ligand for IRAK4 protein by a linker to form PROTAC IRAK4 degrader-1 (HY-129966).
    Thalidomide 4-fluoride
  • HY-42424
    (S,R,S)-AHPC-Me hydrochloride 1948273-03-7 99.95%
    (S,R,S)-AHPC-Me hydrochloride (VHL ligand 2 hydrochloride) is the (S,R,S)-AHPC-based VHL ligand used in the recruitment of the von Hippel-Lindau (VHL) protein. (S,R,S)-AHPC-Me hydrochloride can be used to synthesize ARV-771, a von Hippel-Landau (VHL) E3 ligase-based BET PROTAC degrader. ARV-771 potently degrades BET protein in castration-resistant prostate cancer (CRPC) cells with a DC50 <1 nM.
    (S,R,S)-AHPC-Me hydrochloride
  • HY-A0003B
    Lenalidomide hemihydrate 847871-99-2 99.98%
    Lenalidomide hemihydrate (CC-5013 hemihydrate), a derivative of Thalidomide, acts as molecular glue. Lenalidomide hemihydrate is an orally active immunomodulator. Lenalidomide hemihydrate (CC-5013 hemihydrate) is a ligand of ubiquitin E3 ligase cereblon (CRBN), and it causes selective ubiquitination and degradation of two lymphoid transcription factors, IKZF1 and IKZF3, by the CRBN-CRL4 ubiquitin ligase. Lenalidomide hemihydrate (CC-5013 hemihydrate) specifically inhibits growth of mature B-cell lymphomas, including multiple myeloma, and induces IL-2 release from T cells.
    Lenalidomide hemihydrate
  • HY-45512
    E3 ligase Ligand 63 2304754-51-4 99.80%
    E3 ligase Ligand 63 is an E3 ligase ligand that can be used to synthesize CDK2 degrader 2 (HY-163815).
    E3 ligase Ligand 63
  • HY-W593975
    CRBN ligand-547 2446913-88-6 99.82%
    CRBN ligand-547 is an E3 ubiquitin ligase cereblon (CRBN) ligand used to recruit the cereblon protein. CRBN ligand-547 can be linked to a target protein ligand via a linker to form a PROTAC.
    CRBN ligand-547
  • HY-23095
    Thalidomide-5-OH 64567-60-8 98.23%
    Thalidomide-5-OH is the Thalidomide-based cereblon ligand used in the recruitment of CRBN protein. Thalidomide-5-OH can be connected to the ligand for protein by a linker to form PROTACs.
    Thalidomide-5-OH
  • HY-W087383
    Thalidomide 5-fluoride 835616-61-0 99.96%
    Thalidomide 5-fluoride is a thalidomide-based Cereblon ligand used to recruit Cereblon protein. Thalidomide 5-fluoride can be linked to target protein ligands (e.g. IRAK4) through a linker to form PROTAC molecules (e.g. PROTAC IRAK4 degrader-1). PROTAC IRAK4 degrader-1 caused <20%, >20-50%, and >50% IRAK4 protein degradation in OCI-LY-10 cells at concentrations of 0.01, 0.1, and 1 μM, respectively.
    Thalidomide 5-fluoride
  • HY-156106
    VHL-IN-1 3033117-53-9 99.84%
    VHL-IN-1 (Compound 30) is an E3 ligase VHL inhibitor with a Kd value of 37 nM. VHL-IN-1 blocks VHL-mediated ubiquitination and degradation of HIF-1α. VHL-IN-1 stabilizes the protein levels of HIF-1α and hydroxylated HIF-1α, and induces the transcriptional activity of HIF-1α. VHL-IN-1 can be used for PROTAC development. VHL-IN-1 is applicable for cancer research.
    VHL-IN-1
  • HY-175742
    BMS-986470 3036554-12-5 99.78%
    BMS-986470, a HbF-activating CRBN E3 ligase modulator (CELMoD), is an orally active dual molecular glue degrader targeting ZBTB7A and WIZ. BMS-986470 has potent γ-globin induction activity. BMS-986470 can be used for sickle cell disease (SCD) research.
    BMS-986470
  • HY-153698
    CC-3060 444288-86-2 99.7%
    CC-3060 is a molecular glue modulator targeting Cereblon (CRBN) E3 ubiquitin ligase and ZBTB16 degrader with a DC50 of 0.47 nM in HT-1080 cells. CC-3060 engages structural degrons on ZBTB16’s ZnF1 or ZnF3 domains for fusion protein substrates. CC-3060 can be used for the research of acute promyelocytic leukemia.
    CC-3060
  • HY-137206
    ALV2 2438124-95-7 98.05%
    ALV2 is a potent and selective Helios molecular glue degrader. ALV2 binds CRBN, with an IC50 of 0.57 μM. Helios is the zinc-finger transcription factor that can maintain a stable Treg cell phenotype in the inflammatory tumor microenvironment.
    ALV2
  • HY-W022007
    5-Norbornene-2-methylamine 95-10-3 99.91%
    5-Norbornene-2-methylamine (JBP) is a hydrophobic tag. 5-Norbornene-2-methylamine can be used for the synthesis of HyT degraders, such as PARP1 degrader-2 (HY-181460).
    5-Norbornene-2-methylamine
  • HY-145776
    ALV1 2438124-79-7 98.62%
    ALV1 is a molecular glue degrader for Ikaros (IKZF1) and Helios (IKZF2) with DC50 of 2.5 nM and 10.3 nM respectively. ALV1 bind CRBN with an IC50 of 0.55 μM, and induces CRBN-Helios dimerization. ALV1 can be used to study the properties and functions of regulatory T cells.
    ALV1
  • HY-103596
    Thalidomide-4-OH 5054-59-1 99.62%
    Thalidomide-4-OH (Cereblon ligand 2) is the Thalidomide-based Cereblon ligand used in the recruitment of CRBN protein. Thalidomide-4-OH (Cereblon ligand 2) can be connected to the ligand for protein by a linker to form PROTACs.
    Thalidomide-4-OH
Cat. No. Product Name / Synonyms Application Reactivity
Ligands for E3 Ligase Isoform Comparison

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