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 (71):

Cat. No. Product Name CAS No. Purity Chemical Structure
  • HY-13030
    (+)-JQ-1 1268524-70-4 99.90%
    (+)-JQ-1 (JQ1) is a potent, specific, and reversible BET bromodomain inhibitor, with IC50s of 77 and 33 nM for the first and second bromodomain (BRD4(1/2)). (+)-JQ-1 also activates autophagy.
    (+)-JQ-1
  • HY-10997
    Ibrutinib 936563-96-1 99.93%
    Ibrutinib (PCI-32765) is a selective, irreversible Btk inhibitor with an IC50 of 0.5 nM.
    Ibrutinib
  • HY-13001
    Quizartinib 950769-58-1 98.87%
    Quizartinib (AC220) is an orally active, highly selective and potent second-generation type II FLT3 tyrosine kinase inhibitor, with a Kd of 1.6 nM. Quizartinib inhibits wild-type FLT3 and FLT3-ITD autophosphorylation in MV4-11 cells with IC50s of 4.2 and 1.1 nM, respectively. Quizartinib can be linked to the VHL ligand via an optimized linker to form a PROTAC FLT3 degrader. Quizartinib induces apoptosis.
    Quizartinib
  • HY-114872A
    SLF TFA 2378802-47-0
    SLF TFA is a synthetic ligand for FK506-binding protein (FKBP) with an affinity of 3.1 μM for FKBP51 and an IC50 of 2.6 μM for FKBP12. SLF TFA can be used in the synthesis of PROTAC.
    SLF TFA
  • HY-129603
    SI-109 2429877-30-3 99.48%
    SI-109 is a potent STAT3 SH2 domain inhibitor (Ki=9 nM) with antitumor activity. SI-109 effectively inhibits the transcriptional activity of STAT3 (IC50=3 μM). SI-109 and an analog of CRBN ligand lenalidomide have been used to design PROTAC STAT3 degrader SD-36.
    SI-109
  • HY-151476
    GID4 Ligand 2
    GID4 Ligand 2 (compound 67) is a selective GID4 binder (IC50=18.9 μM; Kd=17 μM). GID4 Ligand 2 can be used for the synthesis of PROTACs.
    GID4 Ligand 2
  • HY-151475
    GID4 Ligand 1
    GID4 Ligand 1 (compound 88) is a cell-permeable and high-selective GID4 binder (IC50=5.4 μM; Kd=5.6 μM), binds to GID4 in cells (EC50=558 nM). GID4 Ligand 1 can be used for the synthesis of PROTACs.
    GID4 Ligand 1
  • HY-147091
    Tazemetostat de(methyl morpholine)-COOH 2685873-44-1
    Tazemetostat de(methyl morpholine)-COOH (compound 7) is a ligand for the PROTAC target protein EZH2, which can be used to synthesis of EZH2 degraders (PROTACs). EZH2 degraders have potent cell viability inhibition in diffuse large B-cell lymphoma (DLBCL) and other subtypes of lymphoma.
    Tazemetostat de(methyl morpholine)-COOH
  • HY-133073
    CCR7 Ligand 1 681514-83-0 99.64%
    CCR7 Ligand 1 (CCR7-Cmp2105) is an allosteric Ligand and antagonist for human CC chemokine receptor 7 (CCR7) with a Kd of 3 nM. CCR7 Ligand 1, thiadiazole-dioxide ligan, suppresses arrestin binding in response to activation by CCL19 with an IC50 of 7.3 μM.
    CCR7 Ligand 1
  • HY-114872
    SLF 195513-96-3 98.60%
    SLF is a synthetic ligand for FK506-binding protein (FKBP) with an affinity of 3.1 μM for FKBP51 and an IC50 of 2.6 μM for FKBP12. SLF can be used in the synthesis of PROTAC.
    SLF
  • HY-111606
    DUPA 302941-52-2 ≥98.0%
    DUPA, belongs to a class of glutamate ureas, is used as the targeting moiety in drug conjugate to selectively deliver cytotoxic drugs to prostate cancer cells.
    DUPA
  • HY-44432
    Navitoclax-piperazine 2143096-93-7 99.21%
    Navitoclax-piperazine (ABT-263-piperazine) is a B-cell lymphoma extra large (BCL-XL) inhibitor. Navitoclax-piperazine and a VHL ligand for the E3 ubiquitin ligase can be used in the synthesis of PROTAC DT2216 (HY-130604).
    Navitoclax-piperazine
  • HY-124625
    BI-4464 1227948-02-8 99.27%
    BI-4464 is a highly selective ATP competitive inhibitor of PTK2/FAK, with an IC50 of 17 nM. A PTK2 ligand for PROTAC.
    BI-4464
  • HY-107452
    SLF-amido-C2-COOH 1092369-24-8 98.82%
    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-126534A
    Abemaciclib metabolite M18 hydrochloride 98.01%
    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-114420
    AP1867-2-(carboxymethoxy) 2230613-03-1
    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-44012A
    SMARCA-BD ligand 1 for Protac dihydrochloride 2369053-68-7 98.56%
    SMARCA-BD ligand 1 for Protac dihydrochloride is a compound that binds to the BAF ATPase subunits SMARCA2, and used for degrading SMARCA2, based on PROTAC.
    SMARCA-BD ligand 1 for Protac dihydrochloride
  • HY-138539
    CBP/p300 ligand 2 2484741-78-6 98.17%
    CBP/p300 ligand 2 is a ligand for target protein for PROTAC of dCBP-1. dCBP-1 is a potent and selective heterobifunctional degrader of p300/CBP.
    CBP/p300 ligand 2
  • HY-130979
    EED226-COOH 2467965-71-3 99.68%
    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-130983
    N-piperidine Ibrutinib hydrochloride 2231747-18-3
    N-piperidine Ibrutinib hydrochloride (Compound 1) is a reversible Ibrutinib derivative. N-piperidine Ibrutinib hydrochloride is a potent BTK inhibitor with IC50s of 51.0 and 30.7 nM for WT BTK and C481S BTK, respectively. N-piperidine Ibrutinib hydrochloride can be used as a BTK ligand in the synthesis of a series of PROTACs, such as SJF620 (HY-133137). SJF620 is a potent PROTAC BTK degrader with a DC50 of 7.9 nM.
    N-piperidine Ibrutinib hydrochloride