Protein SSX4
Protein SSX4 (151-170) is a synthetic peptide fragment corresponding to amino acids 151 through 170 of the human SSX4 protein, a member of the synovial sarcoma X breakpoint (SSX) family. These proteins are characterized by their involvement in chromatin remodeling and transcriptional regulation, with notable implications in cancer biology, particularly in synovial sarcoma and other malignancies. The 151-170 region of SSX4 is of particular interest due to its potential role in protein-protein interactions and post-translational modifications. As a defined peptide sequence, this fragment serves as a valuable tool for researchers investigating the structural and functional properties of SSX4, as well as its broader involvement in cellular signaling pathways.
Epitope mapping: The SSX4 (151-170) peptide is highly relevant for epitope mapping studies aiming to elucidate the immunogenic regions of the SSX4 protein. By providing a discrete segment of the protein, it can be used to identify antibody binding sites, facilitating the development and validation of SSX4-specific antibodies. These antibodies are instrumental in basic research applications such as immunoprecipitation, immunoblotting, and immunohistochemistry, where precise recognition of SSX4 is required for detection and localization within cellular or tissue samples.
Antigen design and vaccine research: As a defined peptide antigen, the SSX4 (151-170) fragment supports the design and screening of peptide-based immunogens for preclinical research. Its sequence can be employed in the generation of peptide libraries or as a component in synthetic vaccine constructs, enabling the assessment of T-cell or B-cell responses to SSX4-derived epitopes. This is particularly significant in studies exploring the immunological landscape of cancer-associated antigens, where SSX family members are frequently investigated as targets for immune recognition.
Protein-protein interaction studies: The SSX4 (151-170) peptide serves as a model substrate for dissecting the molecular interactions involving the C-terminal region of the SSX4 protein. Researchers can use this fragment in binding assays, pull-down experiments, or surface plasmon resonance analyses to characterize interactions with known or putative SSX4-binding partners. Such studies are essential for understanding the mechanistic basis of SSX4's role in chromatin dynamics, transcriptional repression, or cellular signaling pathways.
Post-translational modification analysis: The defined sequence of the SSX4 (151-170) peptide allows for targeted investigation of post-translational modifications, such as phosphorylation, methylation, or acetylation, that may occur within this region. Utilizing the synthetic peptide in in vitro modification assays or mass spectrometry-based workflows provides a controlled context for identifying modification sites and characterizing their functional consequences. Insights gained from these studies contribute to a more comprehensive understanding of SSX4 regulation and its impact on cellular processes.
Assay development and biomarker research: The SSX4 (151-170) peptide is a valuable reagent for the development of quantitative and qualitative assays, including enzyme-linked immunosorbent assays (ELISAs) and multiplex immunoassays, designed to detect SSX4-derived peptides or antibodies in biological samples. Its use enhances assay specificity and sensitivity, supporting research into SSX4 as a biomarker for disease characterization, progression, or therapeutic response in oncology and related fields. By enabling the precise measurement of SSX4-related analytes, the peptide contributes to the advancement of translational research and biomarker discovery efforts.
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