Mouse CXCR4 Virus-Like Particles

Mouse CXCR4 Virus-Like Particles (VLPs) serve as a highly specialized platform for presenting the murine C-X-C chemokine receptor type 4 in a stable, native-like environment. CXCR4 is a complex seven-transmembrane G protein-coupled receptor (GPCR) that plays a fundamental role in various physiological processes, including hematopoietic stem cell homing and immune system regulation. These VLPs are meticulously engineered to display the full-length mouse CXCR4 protein on the surface of a non-infectious viral scaffold, effectively mimicking the natural lipid bilayer of a cell membrane. This structural arrangement ensures that the delicate extracellular loops of the receptor are correctly folded and easily accessible, overcoming the common hurdles associated with the instability and low expression levels of traditional membrane protein preparations. By providing the receptor at a high density, these particles facilitate more sensitive detection and more reliable experimental outcomes compared to conventional cell-based assays.

Due to their unique structural properties, Mouse CXCR4 VLPs are widely utilized across several key areas of biomedical research and pharmaceutical development. They are particularly favored as potent immunogens for the discovery of therapeutic antibodies, as their virus-like architecture and repetitive antigen display trigger a stronger immune response than soluble peptides or denatured proteins. In the realm of drug discovery, these VLPs are indispensable for high-throughput screening campaigns aimed at identifying small molecule inhibitors or peptide-based antagonists that can modulate CXCR4 activity, which is often implicated in cancer progression and chronic inflammation. They also provide a robust substrate for characterizing molecular interactions using advanced biophysical techniques like Surface Plasmon Resonance (SPR) and Biolayer Interferometry (BLI). Beyond laboratory research, Mouse CXCR4 VLPs are frequently employed as diagnostic standards in flow cytometry and as essential tools for studying the mechanism of viral entry and cell signaling in murine disease models.