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

Ligands for E3 Ligase

E3 ligase-recruiting Moiety

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).

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-A0003
    Lenalidomide 191732-72-6 99.91%
    Lenalidomide (CC-5013), a derivative of Thalidomide, acts as molecular glue. Lenalidomide is an orally active immunomodulator. Lenalidomide (CC-5013) 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 (CC-5013) specifically inhibits growth of mature B-cell lymphomas, including multiple myeloma, and induces IL-2 release from T cells.
    Lenalidomide
  • HY-10984
    Pomalidomide 19171-19-8 99.96%
    Pomalidomide, the third-generation immunomodulatory agent, acts as molecular glue. Pomalidomide interacts with the E3 ligase cereblon and induces degradation of essential Ikaros transcription factors.
    Pomalidomide
  • HY-101488
    CC-885 1010100-07-8 99.85%
    CC-885 is a cereblon (CRBN) modulator with potent anti-tumour activity. CC-885 is also a known degrader of GSPT1, inhibiting protein translation.
    CC-885
  • HY-130800
    Eragidomide 1860875-51-9 99.76%
    Eragidomide (CC-90009) is a first-in-class GSPT1-selective cereblon (CRBN) E3 ligase modulator, acts as a molecular glue. Eragidomide coopts the CRL4CRBN to selectively target GSPT1 for ubiquitination and proteasomal degradation.
    Eragidomide
  • HY-14658
    Thalidomide 50-35-1 99.92%
    Thalidomide inhibits cereblon (CRBN), a part of the cullin-4 E3 ubiquitin ligase complex CUL4-RBX1-DDB1, with a Kd of ∼250 nM, and has immunomodulatory, anti-inflammatory and anti-angiogenic cancer properties. Thalidomide can work as molecular glue to potentiate substrate.
    Thalidomide
  • HY-148896
    (S,R,S)-AHPC-C2-PEG3-BCN 2876198-36-4 ≥98.0%
    (S,R,S)-AHPC-C2-PEG3-BCN (Compound 16b) is a VHL ligand, and can be used for synthesis of PROTACs.
    (S,R,S)-AHPC-C2-PEG3-BCN
  • HY-131887
    Pomalidomide-C6-COOH 2225940-50-9 98.02%
    Pomalidomide-C6-COOH is the pomalidomide-based cereblon (CRBN) ligand used in the recruitment of CRBN protein. Pomalidomide-6-OH can be connected to the ligand for protein by a linker to form PROTAC.
    Pomalidomide-C6-COOH
  • HY-138678
    (R,S,S)-VH032 2230826-33-0
    (R,S,S)-VH032 is Ligand for E3 Ligase used in the synthesis of PROTACs. VH032 is a VHL ligand and VHL/HIF-1α interaction inhibitor that recruits von Hippel-Lindau (VHL) proteins. (R,S,S)-VH032 synthesizes the tau-targeting small molecule PROTAC C004019 (HY-138669).
    (R,S,S)-VH032
  • HY-101291
    Iberdomide 1323403-33-3 98.83%
    Iberdomide (CC-220) is an orally active and potent cereblon (CRBN) E3 ligase modulator (CELMoD) with an IC50 of ~150 nM for cereblon-binding affinity. Iberdomide, a derivative of Thalidomide (HY-14658), has antitumor and immunostimulatory activities.
    Iberdomide
  • HY-100947
    VH-298 2097381-85-4 99.78%
    VH-298 is a highly potent inhibitor of the VHL:HIF-α interaction with a Kd value of 80 to 90 nM, used in PROTAC technology.
    VH-298
  • HY-120217
    VH032 1448188-62-2 99.64%
    VH032 is a VHL ligand used in the recruitment of the von Hippel-Lindau (VHL) protein. VH032 is a VHL/HIF-1α interaction inhibitor with a KdPROTACs.
    VH032
  • HY-144841
    Cemsidomide 2504235-67-8 98.94%
    Cemsidomide (CFT7455) is an orally active zinc finger transcription factors Ikaros (IKZF1), Aiolos (IKZF3) degrader. Cemsidomide is an anti-cancer agent that binds with high affinity to the cereblon E3 ligase (Kd of 0.9 nM) (WO2022032132A1; Compound 1).
    Cemsidomide
  • HY-42424
    (S,R,S)-AHPC-Me hydrochloride 1948273-03-7 99.59%
    (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-137206
    ALV2 2438124-95-7 98.07%
    ALV2 is a potent and selective Helios 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-146237
    Golcadomide 2379572-34-4
    Golcadomide (CC-99282) is a potent and orally active cereblon (CRBN) E3 ligase modulator (CELMoD). Golcadomide co-opts CRBN to induce potent and targeted degradation of Ikaros and Aiolos. Golcadomide can be used for researching non-Hodgkin lymphomas.
    Golcadomide
  • HY-101763A
    (S,R,S)-AHPC monohydrochloride 1448189-80-7 99.54%
    (S,R,S)-AHPC (VH032-NH2) hydrochloride is the VH032-based VHL ligand used in the recruitment of the von Hippel-Lindau (VHL) protein. (S,R,S)-AHPC hydrochloride can be connected to the ligand for protein (e.g., BCR-ABL1) by a linker to form PROTACs (e.g., GMB-475). GMB-475 induces the degradation of BCR-ABL1 with an IC50 of 1.11 μM in Ba/F3 cells.
    (S,R,S)-AHPC monohydrochloride
  • HY-125905
    VH032-cyclopropane-F 2306193-99-5 99.39%
    VH032-cyclopropane-F is the VH032-based VHL ligand. VH032-cyclopropane-F can be connected to the ligand for protein (e.g., SMARCA BD ligand) by a linker to form PROTACs (e.g., PROTAC 1). PROTAC 1 is a partial degrader of SMARCA2 and SMARCA4.
    VH032-cyclopropane-F
  • HY-41547
    Thalidomide 4-fluoride 835616-60-9 99.65%
    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-125845A
    (S,S,S)-AHPC hydrochloride 2115897-23-7 99.90%
    (S,S,S)-AHPC hydrochloride is a von Hippel-Lindau (VHL) amino building block. (S,S,S)-AHPC (Compound 27) is a ligand used as a negative control for (S,R,S)-AHPC. (S,R,S)-AHPC is the VH032-based VHL ligand used in the recruitment of the VHL protein.
    (S,S,S)-AHPC hydrochloride
  • HY-23095
    Thalidomide-5-OH 64567-60-8 99.65%
    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

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