123C4 is a potent, selective and competitive agonist of the receptor tyrosine kinase EPHA4, with a Ki value of 0.65 μM.
123C4 is a synthetic peptide compound designed for advanced biochemical research applications. As a member of the C4 peptide family, it is characterized by a specific amino acid sequence that confers unique structural and functional properties relevant to molecular biology and peptide science. Its well-defined sequence and high degree of synthetic control make it a valuable tool for researchers investigating protein-protein interactions, receptor binding mechanisms, and structure-activity relationships in peptide-based systems. The compound's stability and compatibility with diverse assay formats further enhance its utility in experimental settings focused on peptide function and mechanism elucidation.
Peptide interaction studies: 123C4 is frequently utilized as a model peptide in studies exploring protein-peptide and peptide-peptide interactions. Its defined sequence allows researchers to systematically analyze binding affinities, conformational changes, and interaction specificity with target proteins or receptors. By serving as a reliable probe, it enables the dissection of molecular recognition events, facilitating the identification of critical residues involved in binding and the elucidation of underlying interaction mechanisms.
Receptor binding assays: In pharmacological and biochemical research, this peptide is often employed to assess ligand-receptor dynamics. Its sequence can be tailored or used as-is to evaluate receptor selectivity, binding kinetics, and downstream signaling responses. Such studies are instrumental in mapping binding domains, validating receptor models, and screening for competitive or allosteric modulators, thereby advancing the understanding of peptide-mediated signal transduction.
Peptide structure-function analysis: 123C4 provides a controlled platform for investigating the relationship between peptide sequence, three-dimensional structure, and biological function. Through techniques such as circular dichroism spectroscopy, NMR, or X-ray crystallography, researchers can analyze secondary and tertiary structural motifs, stability under various conditions, and the impact of sequence modifications. These insights contribute to the rational design of peptides with tailored properties for research or biotechnological applications.
Peptide synthesis optimization: The compound is also valuable as a standard or reference in the optimization of solid-phase peptide synthesis protocols. Its well-characterized sequence and predictable synthesis behavior make it ideal for benchmarking coupling efficiencies, testing resin compatibility, and evaluating purification strategies. By providing a reproducible target, it supports the refinement of synthetic methodologies and quality control processes in peptide chemistry laboratories.
Analytical method development: 123C4 serves as a calibration standard or test substrate in the development and validation of analytical techniques such as HPLC, mass spectrometry, and capillary electrophoresis for peptide analysis. Its defined molecular mass and chromatographic properties allow for the assessment of instrument sensitivity, resolution, and reproducibility, supporting the establishment of robust analytical workflows for peptide quantification, purity assessment, and characterization in research and industrial settings.
1. Implications of ligand-receptor binding kinetics on GLP-1R signalling
2. Emerging applications of nanotechnology for diagnosis and therapy of disease: a review
5. TMEM16F and dynamins control expansive plasma membrane reservoirs
If you have any peptide synthesis requirement in mind, please do not hesitate to contact us at . We will endeavor to provide highly satisfying products and services.
Creative Peptides is a trusted CDMO partner specializing in high-quality peptide synthesis, conjugation, and manufacturing under strict cGMP compliance. With advanced technology platforms and a team of experienced scientists, we deliver tailored peptide solutions to support drug discovery, clinical development, and cosmetic innovation worldwide.
From custom peptide synthesis to complex peptide-drug conjugates, we provide flexible, end-to-end services designed to accelerate timelines and ensure regulatory excellence. Our commitment to quality, reliability, and innovation has made us a preferred partner across the pharmaceutical, biotechnology, and personal care industries.