1. PROTAC
  2. Ligand for E3 Ligase

Ligand for E3 Ligase

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).

Ligand for E3 Ligase Related Products (55):

Cat. No. Product Name Effect Purity
  • HY-A0003
    Lenalidomide 99.98%
    Lenalidomide (CC-5013) is a derivative of Thalidomide and 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[1][2].
  • HY-10984
    Pomalidomide 99.96%
    Pomalidomide is the third-generation immunomodulatory agent, functions through interacting with the E3 ligase cereblon and induces degradation of essential Ikaros transcription factors.
  • HY-101291
    Iberdomide 98.82%
    Iberdomide (CC-220) is a cereblon (CRBN) modulator with an IC50 value of 60 nM[1].
  • HY-101488
    CC-885 99.23%
    CC-885 is a cereblon (CRBN) modulator with potent anti-tumour activity.
  • HY-14658
    Thalidomide
    Thalidomide is initially promoted as a sedative, 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.
  • HY-120217
    VH032 98.48%
    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 Kd[1][2][3].
  • HY-138040
    CRBN modulator-1
    CRBN modulator-1, a Thalidomide analog and a CRBN modulator extracted from WO2020006262A1, compound 10, has an IC50 of 3.5 μM and a Ki of 0.98 μM[1].
  • HY-130842
    β-Naphthoflavone-CH2-Br
    β-Naphthoflavone-CH2-Br (β-NF-CH2-Br) is an arylhydrocarbon receptor (AhR) ligand. β-Naphthoflavone-CH2-Br can be used to synthesize the PROTAC β-NF-JQ1(HY-130256)[1].
  • HY-100947
    VH-298 99.83%
    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.
  • HY-101763A
    (S,R,S)-AHPC hydrochloride
    (S,R,S)-AHPC 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[1].
  • HY-42424
    (S,R,S)-AHPC-Me hydrochloride 98.13%
    (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[1]. (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[2].
  • HY-42424A
    (S,R,S)-AHPC-Me dihydrochloride 98.39%
    (S,R,S)-AHPC-Me dihydrochloride (VHL ligand 2 dihydrochloride) is the (S,R,S)-AHPC-based VHL ligand used in the recruitment of the von Hippel-Lindau (VHL) protein[1]. (S,R,S)-AHPC-Me dihydrochloride 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[2].
  • HY-130800
    Cereblon modulator 1 Modulator 99.51%
    Cereblon modulator 1 (compound F) is a cereblon (CRBN) E3 ligase modulator. Cereblon modulator 1 specifically binds to CRBN, thereby affecting the activity of the ubiquitin E3 ligase complex. This leads to the ubiquitination of certain substrate proteins and induces the proteasome-mediated degradation of certain transcription factors, including Ikaros (IKZF1) and Aiolos (IKZF3)[1][2].
  • HY-103597
    Thalidomide-O-COOH 99.73%
    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[1].
  • HY-A0003B
    Lenalidomide hemihydrate 99.95%
    Lenalidomide hemihydrate (CC-5013 hemihydrate) is a derivative of Thalidomide and 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[1][2].
  • HY-23095
    Thalidomide-5-OH
    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[1].
  • HY-111663
    VL285 98.38%
    VL285 is a potent VHL ligand with an IC50 of 0.34 μM[1].
  • HY-125845A
    (S,S,S)-AHPC hydrochloride
    (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[1].
  • HY-41547
    Thalidomide 4-fluoride
    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)[1].
  • HY-128837
    Nutlin carboxylic acid 98.29%
    Nutlin carboxylic acid (MDM2 ligand 1) is the Nutlin 3-based MDM2 ligand. Nutlin carboxylic acid (MDM2 ligand 1) can be connected to the ligand for protein by a linker to form PROTACs[1].