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Ligand for Target Protein for PROTAC

Ligands for target proteins in PROTAC design bind the protein that a degrader is meant to remove. A proteolysis-targeting chimera (PROTAC) joins such a ligand to an E3 ubiquitin ligase ligand through a linker, so that the ligase ubiquitinates the bound target. Most entries are known inhibitors or receptor ligands modified with an attachment point, such as an aldehyde, amine, carboxylic acid or alkyne group. Dasatinib carbaldehyde and Imatinib carbaldehyde are aldehyde-bearing analogs of two kinase inhibitors. BI-4464 binds protein tyrosine kinase 2 (PTK2), also called focal adhesion kinase (FAK), and SirReal1-O-propargyl carries a propargyl handle on a sirtuin 2 (SIRT2) ligand. Receptor ligands in the list include Estrone-N-O-C1-amido and AP1867-2-(carboxymethoxy), which binds FK506-binding proteins.

1 Item

  • VUBI1
    Cat. No.
    A24569
    CAS No.
    2245237-53-8

    VUBI1 (SOS1 activator 1)

    Synonyms: SOS1 activator 1

    VUBI1 (SOS1 Activator 1) is a benzimidazole-derived small molecule that acts as a potent activator of the guanine nucleotide exchange factor SOS1, with a dissociation constant (Kᴅ) of 44 nM. It promotes RAS activation by enhancing RAS-GTP formation and modulates downstream ERK phosphorylation, thereby influencing RAS–MAPK signaling. In addition, VUBI1 serves as a functional ligand for the development of PROTAC-based degraders, such as PROTAC SOS1 Degrader-1, to induce targeted SOS1 degradation. VUBI1 is a valuable compound for studying RAS pathway regulation and its role in cancer biology.

    In stock View Details
    1 mg
    $315.00
    5 mg
    $945.00
    All 4 sizes

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