Wilms tumor protein (317-327)

Wilms tumor protein (317-327) is a synthetic peptide fragment derived from the Wilms tumor 1 (WT1) protein, a zinc finger transcription factor that plays a pivotal role in cellular growth, differentiation, and apoptosis. This specific sequence corresponds to amino acids 317 through 327 of the WT1 protein, a region often investigated for its involvement in transcriptional regulation and its immunogenic properties. Researchers utilize this peptide as a model epitope to study WT1's molecular interactions, post-translational modifications, and its implications in various biological processes, particularly those related to oncogenesis and developmental biology.

Epitope mapping: The 317-327 peptide fragment is frequently employed in epitope mapping studies to elucidate the immunogenic regions of the WT1 protein. By incorporating this peptide into immunoassays, scientists can identify and characterize T-cell or antibody responses specific to the WT1 epitope, facilitating a deeper understanding of immune recognition patterns. Such mapping efforts are critical for dissecting the molecular basis of antigenicity and for the design of targeted immunological assays in preclinical research.

Peptide-based assay development: The defined sequence of this WT1-derived peptide makes it an ideal candidate for use as a standard or control in peptide-based analytical assays. In applications such as ELISA, mass spectrometry, or peptide-MHC binding studies, the 317-327 peptide serves as a quantifiable and reproducible reference. Its use supports assay calibration, validation, and optimization, ensuring robust and reliable detection of WT1-specific responses in experimental systems.

T-cell activation studies: Investigators utilize the 317-327 peptide to stimulate antigen-specific T-cells in vitro, enabling the assessment of cellular immune responses against WT1-derived epitopes. By presenting the peptide to T-cells in the context of appropriate major histocompatibility complex (MHC) molecules, researchers can monitor cytokine production, proliferation, and cytotoxic activity. Such studies are essential for dissecting the cellular mechanisms underlying immune surveillance and for evaluating the immunogenic potential of WT1 epitopes in translational research.

Peptide structure-function analysis: The defined amino acid sequence of the 317-327 fragment allows for precise structure-function investigations. Researchers may employ the peptide in biophysical assays or structural studies to probe its conformational properties, interaction with binding partners, or susceptibility to enzymatic modification. These analyses contribute to a broader understanding of how specific WT1 regions influence protein function, stability, or molecular recognition events within the cell.

Peptide synthesis and modification research: The WT1 (317-327) peptide is also valuable as a substrate or template in peptide synthesis studies. Its sequence can be modified through site-directed mutagenesis, chemical labeling, or conjugation approaches to generate analogs for structure-activity relationship investigations or for the development of novel research tools. Such modifications expand the utility of the peptide in exploring peptide chemistry, optimizing detection reagents, or engineering customized probes for advanced biochemical applications.

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