(S,R,S)-AHPC-CO-PEG1-COOH

Background Introduction

(S,R,S)-AHPC-CO-PEG1-COOH is a specialized E3 ligase ligand-linker conjugate primarily employed in the design and synthesis of Proteolysis Targeting Chimeras (PROTACs). As part of the ever-evolving targeted protein degradation field, this compound is engineered for optimal engagement with the von Hippel-Lindau (VHL) E3 ubiquitin ligase complex, facilitating the rapid and selective removal of disease-relevant proteins within cells.

Mechanism

The mechanism of (S,R,S)-AHPC-CO-PEG1-COOH centers on its bifunctional characteristics. One end of the molecule contains the (S,R,S)-AHPC moiety, which acts as a highly specific ligand for the VHL E3 ligase. The other end of the molecule features a carboxylic acid group, connected via a short PEG1 linker, which can be chemically conjugated to a ligand for a protein of interest. When assembled into a PROTAC molecule, (S,R,S)-AHPC-CO-PEG1-COOH brings the target protein and the VHL E3 ligase into close spatial proximity, enabling the transfer of ubiquitin molecules to the target. This ubiquitination signals the target protein for subsequent degradation by the proteasome.

Applications

(S,R,S)-AHPC-CO-PEG1-COOH is a powerful tool in drug discovery and chemical biology research. It serves as a modular linker-ligand scaffold for constructing novel PROTAC molecules aimed at degrading various disease-associated proteins. Researchers use it to study protein function, validate drug targets, and develop potential therapeutics for cancer, neurodegenerative disorders, and other conditions where selective protein degradation offers a therapeutic advantage. Its PEG1-linker provides suitable solubility and flexibility, supporting the design of PROTACs with favorable pharmacokinetic profiles.

• PEGylated linker improves aqueous solubility and bioavailability for efficient PROTAC development.
• Optimized VHL E3 ligase ligand ensures high selectivity and potency in targeted protein degradation applications.

(S,R,S)-AHPC-CO-PEG1-COOH is an E3 Ligase Ligand-Linker Conjugate that plays a crucial role in the development of PROTACs by facilitating the targeted degradation of proteins. This molecule integrates a versatile linker, a potent ligand, and a reactive site to enable efficient conjugation with target protein ligands, enhancing the specificity and efficacy of protein degradation strategies.

Linker: The linker in this molecule is a short, flexible PEG1 chain that provides optimal spacing between the ligand and reactive site. Its flexibility enhances the molecule's adaptability, while the non-cleavable nature ensures stable conjugation, making it suitable for in vitro studies.

Ligand: The ligand is derived from AHPC, a well-characterized E3 ligase recruiter. Its stereochemistry, specifically the (S,R,S) configuration, ensures high affinity and specificity for the intended ligase, facilitating effective ubiquitination of the target protein.

Reactive Site: The carboxylic acid group (COOH) serves as the reactive site, enabling coupling with target protein ligands through amide bond formation. This site is compatible with standard peptide coupling reactions, offering a reliable method for conjugation.

Recommended Target Protein Ligand: The molecule is compatible with amine-containing warheads, which can be conjugated through the carboxylic acid reactive site. This approach is advantageous for designing selective PROTACs, as it allows for the precise targeting of proteins involved in various diseases, thereby aiding in the development of novel therapeutic strategies. Researchers can leverage this compatibility for experimental studies focusing on protein degradation.