Carcinoembryonic antigen (CEA)-derived peptide CAP1-6D
CAT No: ta-565
CAP1-6D is a synthetic peptide compound that serves as a valuable tool in the field of molecular and cellular biology, particularly for studies involving actin dynamics and cytoskeletal regulation. As a derivative designed to target specific protein-protein interactions, CAP1-6D is modeled after a segment of the cyclase-associated protein 1 (CAP1), a crucial regulator of actin filament turnover. Its sequence and structure allow it to mimic or disrupt endogenous CAP1 functions, enabling researchers to dissect the molecular mechanisms underlying actin-mediated cellular processes. Due to its defined biochemical properties, CAP1-6D is widely employed in experimental systems seeking to elucidate the roles of actin-binding proteins and their impact on cellular architecture, motility, and signal transduction.
Peptide-based actin regulation studies: CAP1-6D is frequently utilized in research focused on actin cytoskeleton remodeling. By mimicking key motifs of CAP1, the peptide can modulate the interaction between CAP1 and actin monomers or cofilin-actin complexes. This enables detailed investigation of the biochemical pathways governing actin filament disassembly and reorganization. Such studies are fundamental for understanding cell migration, morphogenesis, and other dynamic cellular behaviors that rely on precise cytoskeletal control.
Protein-protein interaction mapping: The peptide serves as a molecular probe for delineating the binding interfaces between CAP1 and its interaction partners. By introducing CAP1-6D into in vitro assays or cell lysates, researchers can competitively inhibit or trace specific protein associations, thereby mapping the domains responsible for actin regulation. This approach is instrumental in characterizing the structural determinants of CAP1 function and identifying novel regulatory proteins involved in cytoskeletal dynamics.
Signal transduction pathway analysis: CAP1-6D is applied in studies examining the signaling networks that converge on actin dynamics. Its ability to selectively perturb CAP1-mediated pathways allows for the dissection of upstream and downstream effectors involved in processes such as cell polarity, endocytosis, and stress response. Through such targeted experiments, researchers gain insights into how extracellular cues are transduced into cytoskeletal changes, offering a deeper understanding of cell adaptation mechanisms.
Peptide screening and drug discovery: The defined sequence and functional relevance of CAP1-6D make it a useful scaffold for high-throughput screening of small molecules or peptide analogs that modulate actin regulatory pathways. By serving as a reference or competitor in binding assays, the peptide facilitates the identification of new compounds that influence CAP1-dependent processes. This application supports early-stage research in the development of modulators for actin-associated cellular functions.
Biochemical assay development: CAP1-6D is incorporated into a variety of biochemical and biophysical assays designed to quantify actin-binding activity, monitor protein complex formation, or assess the effects of post-translational modifications on CAP1 function. Its stability and specificity make it suitable for use in fluorescence polarization, pull-down, and co-immunoprecipitation protocols, providing a reliable standard for experimental reproducibility and assay optimization. Through these applications, the peptide enhances the rigor and interpretability of studies focused on actin dynamics and cytoskeletal regulation.
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