1. Signaling Pathways
  2. PROTAC
  3. Ligands for Target Protein for PROTAC

Ligands for Target Protein for PROTAC

Target Protein-binding Moiety

The PROTAC molecule consists of a target protein ligand and an E3 ubiquitin ligase ligand, with a linker binds them together. The ligand for target protein will lead to attachment of a PROTAC to the proteins of interest for ubiquitin and subsequent degradation.

Target proteins are usually proteins whose overexpression or accumulation may play important roles in the progress of diseases. Numbers of PROTACs have been developed to degrade kinases (such as MEK, KRAS, CDK and Bcr/Abl), transcription factors (such as p53, STAT, RAR, ER and AR), epigenetic tools (such as HDAC and BET bromodomain) and E3 ligase themselves (such as MDM2).

Ligands for Target Protein for PROTAC Related Products (510):

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-114420
    AP1867-2-(carboxymethoxy) 2230613-03-1 99.88%
    AP1867-2-(carboxymethoxy), the AP1867 (a synthetic FKBP12F36V-directed ligand) based moiety, binds to CRBN ligand via a linker to form dTAG molecules.
    AP1867-2-(carboxymethoxy)
  • HY-126534A
    Abemaciclib metabolite M18 hydrochloride 2704316-82-3 98.18%
    Abemaciclib metabolite M18 (LSN3106729) hydrochloride, the metabolite of Abemaciclib (HY-16297A), is a CDK inhibitor with antitumor activity. Abemaciclib metabolite M18 hydrochloride and a CRBN ligand have been used to design PROTAC CDK4/6 degrader.
    Abemaciclib metabolite M18 hydrochloride
  • HY-75706
    N-Descyclopropanecarbaldehyde Olaparib 763111-47-3 99.46%
    N-Descyclopropanecarbaldehyde Olaparib is an analogue of Olaparib (HY-10162) containing DOTA moiety. N-Descyclopropanecarbaldehyde Olaparib is a PARP inhibitor used for synthesizing novel dual EGFR and PARP PROTAC, DP-C-4 (HY-141481). N-Descyclopropanecarbaldehyde Olaparib can be radiolabeled with F-18 or fluorophore for positron emission tomography (PET) or optical imaging in several types of tumor.
    N-Descyclopropanecarbaldehyde Olaparib
  • HY-141799
    Dimethyl-F-OICR-9429-COOH 2407458-49-3 98.11%
    Dimethyl-F-OICR-9429-COOH a ligand for WD40 repeat domain protein 5 (WDR5) extracted from patent WO2019246570A1 intermediate 19. Dimethyl-F-OICR-9429-COOH can be used in the synthesis of PROTACs.
    Dimethyl-F-OICR-9429-COOH
  • HY-130979
    EED226-COOH 2467965-71-3 99.88%
    EED226-COOH is an EED226-derived ligand for target protein EED ligand for PROTAC, binds to a ligand for VHL via linker to form UNC6852 (HY-130708) to degrade PRC2.
    EED226-COOH
  • HY-107452
    SLF-amido-C2-COOH 1092369-24-8 99.63%
    SLF-amido-C2-COOH (PROTAC FKBP12-binding moiety 1) is a synthetic ligand for FKBP (SLF). SLF-amido-C2-COOH (PROTAC FKBP12-binding moiety 1) can be used in the synthesis of PROTACs.
    SLF-amido-C2-COOH
  • HY-151071
    TMX-3013 2488761-18-6 98.02%
    TMX-3013 is a CDK inhibitor capable of inhibiting the activity of CDK1, CDK2, CDK4, CDK5, and CDK6, with IC50 values of 0.9 nM, <0.5 nM, 24.5 nM, 0.5 nM, and 15.6 nM, respectively. TMX-3013 can be used as a target protein ligand, conjugated with the PROTAC linker and the CRBN ligand Thalidomide (HY-14658) for the synthesis of PROTAC TMX-2138 (HY-164906). TMX-3013 can also act as an effector ligand, binding to target proteins HaloTag or FKBP, and can be used in the synthesis of regulated induced proximity targeting chimeras (RIPTACs).
    TMX-3013
  • HY-130815A
    MAK683-C2-acid hydrochloride 2938997-23-8 99.60%
    MAK683-CH2CH2COOH binds to EED (embryonic ectoderm development protein). MAK683-CH2CH2COOH and a VHL ligand for the E3 ubiquitin ligase have been used to design PROTAC EED degrader-1 (HY-130614) and PROTAC EED degrader-2 (HY-130615).
    MAK683-C2-acid hydrochloride
  • HY-111671
    VUBI1 2245237-53-8 98.21%
    VUBI1 (SOS1 activator 1) is a benzimidazole derivative and SOS1 activator with a Kd of 44 nM. VUBI1 can significantly activate RAS-GTP and regulate the phosphorylation of ERK. VUBI1 also can serve as a target ligand for synthesizing PROTACs, such as PROTAC SOS1 degrader-1 (HY-145737), to induce SOS1 degradation. VUBI1 can be used in the study of cancer.
    VUBI1
  • HY-126534
    Abemaciclib metabolite M18 2704316-81-2 98.01%
    Abemaciclib metabolite M18 (LSN3106729), the metabolite of Abemaciclib (HY-16297A), is a CDK inhibitor with antitumor activity. Abemaciclib metabolite M18 and a CRBN ligand have been used to design PROTAC CDK4/6 degrader.
    Abemaciclib metabolite M18
  • HY-169396
    TAE648 2769753-10-6 99.50%
    TAE648 is a PROTAC target protein ligand (Ligand for Target Protein for PROTAC). TAE648 can be used for synthesis PROTAC SK-3-91 (HY-137341).
    TAE648
  • HY-129939
    BET-IN-31 2313230-51-0 99.85%
    BET-IN-31 is a potent BET inhibitor and a ligand for target BRD4 protein for PROTACT GNE-987 (HY-129937A).
    BET-IN-31
  • HY-112429
    HJB97 2093391-24-1 98.05%
    HJB97 is a high-affinity BET inhibitor with Ki values of 0.9 nM (BRD2 BD1), 0.27 nM (BRD2 BD2), 0.18 nM (BRD3 BD1), 0.21 nM (BRD3 BD2), 0.5 nM (BRD4 BD1), and 1.0 nM (BRD4 BD2). HJB97 can serve as a ligand for target protein (Ligands for Target Protein for PROTAC) for the development of PROTAC BET degraders with antitumor activity. HJB97 can be used for the synthesis of BETd-260 (HY-101519).
    HJB97
  • HY-111606
    DUPA 302941-52-2 98.0%
    DUPA, belongs to a class of glutamate ureas, is used as the targeting moiety in agent conjugate to selectively deliver cytotoxic agents to prostate cancer cells.
    DUPA
  • HY-107445A
    PROTAC BRD9-binding moiety 1 hydrochloride 2448414-41-1 98.13%
    PROTAC BRD9-binding moiety 1 hydrochloride is a compound that binds to BRD9, and used for inhibiting BRD9 activity, based on PROTAC.
    PROTAC BRD9-binding moiety 1 hydrochloride
  • HY-10997R
    Ibrutinib (Standard) 936563-96-1
    Ibrutinib (Standard) is the analytical standard of Ibrutinib. This product is intended for research and analytical applications. Ibrutinib (PCI-32765) is a selective, irreversible Btk inhibitor with an IC50 of 0.5 nM.
    Ibrutinib (Standard)
  • HY-168683
    CDK8 ligand 1 2924557-38-8 99.88%
    CDK8 ligand 1 is the ligand of CDK8. CDK8 ligand 1 can be used to synthesize LL-K8-22 (HY-149209).
    CDK8 ligand 1
  • HY-43962
    Androgen receptor ligand 3 693227-00-8 99.54%
    Androgen receptor ligand 3 is an androgen receptor (AR) ligand. Androgen receptor ligand 3 is linked to an IAP ligand via a linker to form an ERα PROTAC degrader.
    Androgen receptor ligand 3
  • HY-151069
    TMX-2039 2488892-01-7 99.42%
    TMX-2039 is a pan-CDK inhibitor for both cell cycle CDKs (CDK1, CDK2, CDK4, CDK5 and CDK6) and transcriptional CDKs (CDK7 and CDK9), with IC50s of 2.6, 1.0, 52.1, 0.5, 35.0, 32.5 and 25 nM, respectively. TMX-2039 acts as a Ligands for Target Protein for PROTACs.
    TMX-2039
  • HY-130841
    Apcin-A 1683617-62-0 98.0%
    Apcin-A is a small molecule inhibitor that selectively targets the cell division cycle protein Cdc20 and is a derivative of Apcin (HY-110287). Apcin-A competitively binds to the D-box binding pocket of Cdc20 and inhibits substrate ubiquitination mediated by the anaphase promoting complex APC/C-Cdc20. Apcin-A also blocks the binding of Cdc20 to substrates (such as securin and cyclin B1), inhibiting anaphase initiation and cell cycle exit. Apcin-A can promote or prolong mitotic slippage in coordination with p31comet under conditions of high spindle assembly checkpoint (SAC) activity. Apcin-A can be used to develop anti-mitotic drugs and overcome tumor chemotherapy resistance. Apcin-A can be used to synthesize PROTAC CP5V (HY-130257)[1][2][3].
    Apcin-A