Ewing Tumor EZH2 (666-674)

Ewing Tumor EZH2 (666-674) is a synthetic peptide fragment corresponding to amino acids 666 through 674 of the Enhancer of Zeste Homolog 2 (EZH2) protein, a key epigenetic regulator implicated in chromatin remodeling and gene silencing. This peptide segment is of particular interest in the study of Ewing sarcoma and other malignancies where EZH2 plays a pivotal role in oncogenesis and cellular differentiation. As a research-use reagent, it serves as a valuable molecular tool for dissecting the structure-function relationships within the EZH2 protein, enabling scientists to probe its involvement in transcriptional repression and histone methylation pathways. The defined sequence of this peptide allows for precise experimental manipulation in biochemical and cellular assays, supporting advanced investigations into the molecular mechanisms underlying tumorigenesis and epigenetic regulation.

Epigenetic research: The EZH2 (666-674) peptide is frequently utilized in studies focused on the enzymatic activity and regulatory functions of Polycomb Repressive Complex 2 (PRC2), of which EZH2 is the catalytic subunit. By providing a defined substrate or competitive inhibitor in in vitro assays, this peptide facilitates the analysis of SET domain-mediated methyltransferase activity. Researchers can use the fragment to map interaction interfaces, assess binding affinities, or investigate the allosteric regulation of PRC2, thereby advancing the understanding of how EZH2-mediated histone methylation influences gene expression patterns in oncogenic contexts.

Antibody generation and validation: As a well-characterized epitope, the peptide corresponding to EZH2 residues 666-674 serves as a robust antigen for the production of sequence-specific antibodies. These antibodies are critical for the detection, quantification, and localization of EZH2 in various biological samples. Employing the peptide in immunization protocols enables the generation of monoclonal or polyclonal antibodies with high specificity, which are subsequently validated using peptide-based ELISA, Western blotting, or immunoprecipitation assays. This application supports the development of reliable tools for both basic research and translational studies involving EZH2.

Protein-protein interaction studies: The defined sequence of the EZH2 (666-674) peptide makes it an effective probe for mapping protein-protein interactions involving the C-terminal region of EZH2. By using the peptide in pull-down assays, surface plasmon resonance, or other biophysical techniques, researchers can identify and characterize binding partners that interact with this segment. Such investigations are instrumental in elucidating the molecular networks and signaling pathways modulated by EZH2, particularly in the context of Ewing sarcoma and related malignancies.

Peptide-based inhibitor screening: The synthetic peptide is suitable for use in high-throughput screening assays aimed at identifying small molecules or biologics that disrupt critical interactions or activities associated with the EZH2 666-674 region. By incorporating the peptide into competitive binding or enzymatic assays, scientists can evaluate the efficacy and specificity of candidate inhibitors targeting this functional domain. This approach accelerates the preclinical assessment of novel compounds with potential to modulate epigenetic regulation in cancer and other disease models.

Structural and functional analysis: The availability of the EZH2 (666-674) peptide enables detailed structural studies using techniques such as NMR spectroscopy or X-ray crystallography. By examining the conformational properties and dynamic behavior of this fragment, researchers gain insights into the structural determinants that govern EZH2 function and regulation. Such analyses contribute to a deeper understanding of the molecular basis of epigenetic control and inform the rational design of targeted modulators for research applications.

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