2. Ligands for Target Protein for PROTAC

Ligands for Target Protein for PROTAC

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 (76):

Cat. No. Product Name Effect Purity
  • HY-13030
    (+)-JQ-1 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))[1]. (+)-JQ-1 also activates autophagy[2].
  • HY-13001
    Quizartinib 99.01%
    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[1].
  • HY-129603
    SI-109 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[1].
  • HY-114872A
    SLF TFA 99.58%
    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[1][2][3].
  • HY-10997
    Ibrutinib 99.93%
    Ibrutinib (PCI-32765) is a selective, irreversible Btk inhibitor with an IC50 of 0.5 nM[1].
  • HY-153341
    CFT1946 Degrader
    CFT1946 is an orally active and selective target ligand for BRAF kinase. CFT1946 is a degrader of mutant BRAFV600E, G469A, G466V and p61-BRAFV600E. CFT1946 can be used in tumor research[1].
  • HY-132942A
    PROTAC BRD4 ligand-2 hydrochloride Chemical
    PROTAC BRD4 ligand-2 hydrochloride is a ligand for target BRD4 protein for PROTAC CFT-2718.
  • HY-130815A
    MAK683-CH2CH2COOH hydrochloride
    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)[1].
  • HY-115729
    PROTAC CDK9 ligand-1 Chemical
    PROTAC CDK9 ligand-1 is a CDK9 ligand that can be used in the synthesis of PROTACs.
  • HY-130296
    Palbociclib-propargyl is a ligand for target protein CDK6 for PROTAC, and binds to CRBN ligand via a PEG linker to make a PROTAC CP-10. CP-10 shows a DC50 of 2.1 nM for CDK6[1].
  • HY-134592
    Piperidine-GNE-049-N-Boc 98.82%
    Piperidine-GNE-049-N-Boc is a ligand for target protein for PROTAC of dCBP-1 (HY-134582). dCBP-1 is a potent and selective heterobifunctional degrader of p300/CBP[1].
  • HY-136857
    PROTAC BRD4 Degrader-7
    PROTAC BRD4 Degrader-7 is a potent bromodomain BRD4 degrader extracted from patent WO2020055976A1, example 1a, has IC50s of 15.5 and 12.3 nM for BRD4-BD1 and BRD4-BD2, respectively[1].
  • HY-110167
    TFC 007
    TFC-007, a selective hematopoietic prostaglandin D synthase (H-PGDS) inhibitor, show high inhibitory activity against H-PGDS enzyme (IC50 value of 83 nM). TFC-007 can be used for composing H-PGDS degradation inducer PROTAC(H-PGDS)-1 (TFC-007 binds to H-PGDS, and Pomalidomide binds to cereblon)[1].
  • HY-107447S
    N-Deshydroxyethyl Dasatinib-d8
    N-Deshydroxyethyl Dasatinib-d8 is the deuterium labeled N-Deshydroxyethyl Dasatinib. N-Deshydroxyethyl Dasatinib (N-Deshydroxyethyl BMS-354825), the Dasatinib-based moiety, binds to IAP ligand via a linker to form SNIPER to degrade ABL[1].
  • HY-44432
    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)[1].
  • HY-130988
    Ipatasertib-NH2 98.63%
    Ipatasertib-NH2 (GDC-0068-NH2;RG7440-NH2) is a ligand for target protein AKT for PROTAC (INY-03-041). INY-03-041 is composed of Ipatasertib-NH2, a ten-hydrocarbon linker, and a CRBN ligand Lenalidomide for E3 ubiquitin ligase[1].
  • HY-130981
    FN-1501-propionic acid
    FN-1501-propionic acid is a CDK2/9 ligand for PROTAC. FN-1501-propionic acid and a CRBN ligand have been used to design PROTAC CDK2/9 degrader (HY-130709)[1].
  • HY-111852
    GNF5-amido-Me, the GNF5 (ABL inhibitor) based moiety, binds to IAP ligand via a linker to form SNIPER[1].
  • HY-44103
    Desmethyl-QCA276 (PROTAC BRD4-binding moiety 4), the QCA276-based moiety, binds to cereblon ligand via a linker to form PROTAC to degrade BET. QCA276 is a BET inhibitor with an IC50 of 10 nM, and with a Ki of 2.3 nM[1].
  • HY-130852
    CDK9-IN-11 is a potent CDK9 inhibitor. CDK9-IN-11 is the ligand for the PROTAC CDK9 Degrader-1 (HY-103628)[1].