WDR46 is a peptide fragment modeled after WD-repeat protein 46, incorporating polar and hydrophobic residues that emulate natural β-propeller interaction motifs. The sequence supports studies of protein-protein recognition involving repetitive WD frameworks. Researchers assess its conformational states to understand folding transitions. Applications include scaffold modeling, binding-interface mapping, and structural-motif exploration.
CAT No: ta-312
WDR46, also known as WD repeat-containing protein 46, is a member of the WD40-repeat protein family characterized by its distinctive β-propeller structure and involvement in diverse cellular processes. As a non-enzymatic scaffold protein, WDR46 is recognized for its role in mediating protein-protein interactions, particularly within the nucleolus and during ribonucleoprotein complex assembly. Its molecular architecture supports the orchestration of multiprotein complexes, making it a valuable subject for studies in cell biology, molecular genetics, and systems biochemistry. The protein's evolutionary conservation and participation in fundamental cellular pathways underscore its significance in both basic and applied research settings.
Protein-protein interaction studies: WDR46 serves as an important molecular scaffold, facilitating the assembly of protein complexes in the nucleolus. Researchers utilize purified or recombinant forms of this protein to dissect interaction networks within the nucleolar compartment, enabling detailed mapping of its binding partners and the identification of regulatory nodes in ribonucleoprotein biogenesis. Such studies provide insights into the structural organization and functional dynamics of cellular machinery, supporting the elucidation of mechanisms underlying nucleolar integrity and function.
Ribonucleoprotein complex assembly research: The protein plays a critical role in the assembly and maturation of small nucleolar ribonucleoproteins (snoRNPs), which are essential for ribosomal RNA processing. Biochemists and molecular biologists employ WDR46 in in vitro reconstitution assays and cellular models to investigate the stepwise formation of snoRNPs, the specificity of RNA-protein recognition, and the regulation of ribosome biogenesis. These applications are fundamental for advancing the understanding of gene expression regulation at the level of ribosome assembly.
Functional genomics and systems biology: WDR46 is frequently studied in the context of high-throughput screening and genome-wide association analyses to define its broader biological roles. By incorporating this protein into functional genomics workflows, scientists can assess the impact of its modulation on cellular phenotypes, identify genetic interactors, and explore its involvement in complex regulatory networks. Such approaches are invaluable for integrating molecular data into comprehensive models of cellular organization and for uncovering novel biological functions.
Post-translational modification analysis: As a scaffold protein, WDR46 is subject to various post-translational modifications that influence its localization, stability, and interaction profile. Mass spectrometry-based proteomics and site-directed mutagenesis experiments often utilize this protein as a substrate to characterize modification patterns, such as phosphorylation or ubiquitination, and to determine their functional consequences. These studies are critical for understanding how dynamic regulatory mechanisms modulate protein behavior in response to cellular signals.
Structural biology and protein engineering: The WD40-repeat domain architecture of WDR46 makes it an attractive target for structural studies using X-ray crystallography, cryo-electron microscopy, or NMR spectroscopy. Detailed structural characterization enables researchers to resolve the three-dimensional conformation of the protein, identify key interaction surfaces, and inform rational design of mutants or engineered variants. Such investigations contribute to the broader field of protein engineering, facilitating the development of molecular tools and probes for dissecting nucleolar processes and protein complex assembly.
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