RW4 is a short cationic peptide combining arginine and tryptophan residues that enhance membrane affinity. Aromatic-cationic synergy supports deep insertion into hydrophobic environments. Researchers explore its folding and aggregation in micelles and bilayers. Applications include membrane-active peptide design, CPP studies, and binding-interface analysis.
CAT No: R2821
Synonyms/Alias:H-RWRWRWRW-NH2; RWRWRWRW-NH2; RWRWRWRW; RW4; antimicrobial; antifungal; RW 4; AM-152; AM152
RW4 is a synthetic carbohydrate compound recognized for its structural specificity and versatility in research settings. As a member of the oligosaccharide family, RW4 is characterized by its defined glycosidic linkages, enabling precise interaction with carbohydrate-binding proteins and enzymes. Its unique configuration makes it an ideal tool for probing glycan-mediated biological processes, supporting advancements in the fields of glycobiology, molecular recognition, and biochemistry. The compound's stability and solubility further enhance its suitability for a broad range of experimental applications, from in vitro assays to more complex analytical techniques. Researchers value RW4 for its ability to mimic natural glycan structures, facilitating the study of carbohydrate-protein interactions and the elucidation of glycosylation pathways.
Glycobiology research: RW4 serves as a powerful probe in glycobiology research, where its defined oligosaccharide structure allows scientists to investigate the specificity and affinity of lectins, glycosidases, and other carbohydrate-binding proteins. By incorporating RW4 into binding assays or microarray platforms, researchers can map out recognition patterns, dissect the molecular basis of glycan-mediated signaling, and gain insights into the roles of carbohydrates in cell communication and immune modulation. The use of RW4 in these studies aids in clarifying the functional consequences of glycan diversity within biological systems.
Enzyme substrate analysis: In enzymology, RW4 is frequently employed as a model substrate for studying the catalytic mechanisms of glycosidases and glycosyltransferases. Its well-defined structure makes it possible to assess enzyme specificity, monitor reaction kinetics, and identify cleavage products using chromatographic or spectroscopic methods. By providing a consistent and reproducible substrate, RW4 enables detailed characterization of enzyme activity, supporting the discovery of novel inhibitors or the engineering of enzymes with tailored properties for biotechnological applications.
Analytical method development: The compound's chemical stability and compatibility with various detection techniques make it an excellent standard in the development and validation of analytical methods. RW4 is commonly used to calibrate high-performance liquid chromatography (HPLC), mass spectrometry, and capillary electrophoresis systems for the detection and quantification of oligosaccharides. Its application as a reference material ensures accuracy and reproducibility in glycan analysis, facilitating the comparison of results across different laboratories and experimental conditions.
Cell surface interaction studies: As a mimic of naturally occurring carbohydrate motifs, RW4 is instrumental in exploring cell surface interactions mediated by glycans. Researchers utilize RW4 to investigate the binding properties of cell adhesion molecules, pathogen recognition receptors, or antibodies that target specific glycan epitopes. Through flow cytometry, surface plasmon resonance, or fluorescence microscopy, the compound helps elucidate the molecular basis of cell-cell recognition, pathogen-host interactions, and immune surveillance, contributing to a deeper understanding of cellular communication networks.
Functional materials design: Beyond its role in biological research, RW4 is increasingly being integrated into the design of functional materials, such as glycoengineered surfaces, biosensors, or drug delivery systems. Its ability to present defined carbohydrate motifs enables the fabrication of surfaces with tailored bioactivity, supporting the selective capture of target biomolecules or cells. In biosensor development, RW4-modified interfaces enhance the sensitivity and specificity of detection platforms, opening new avenues for diagnostics and environmental monitoring.
Through its multifaceted applications, RW4 continues to drive innovation across a spectrum of scientific disciplines. Its structural precision, compatibility with advanced analytical techniques, and capacity to model natural glycan interactions make it an indispensable resource for researchers seeking to unravel the complexities of carbohydrate function in biology and materials science. As new technologies emerge, the utility of RW4 is expected to expand, further cementing its role as a cornerstone compound in carbohydrate research and development.
3. Emu oil in combination with other active ingredients for treating skin imperfections
5. SERS spectrum of the peptide thymosin‐β4 obtained with Ag nanorod substrate
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