Usherin isoform B (3700-3711)

Usherin isoform B (3700-3711) is a synthetic peptide fragment derived from the C-terminal region of the Usherin protein, a large extracellular matrix glycoprotein implicated in cell adhesion, synaptic organization, and the structural integrity of sensory epithelia. This peptide encompasses amino acids 3700 to 3711 of the Usherin isoform B sequence, a domain of particular interest in studies of protein-protein interactions and functional mapping within the broader Usherin architecture. As Usherin plays a pivotal role in the maintenance and function of retinal and cochlear tissues, its peptide fragments are highly relevant for elucidating molecular mechanisms underlying sensory cell biology, extracellular matrix assembly, and the pathogenesis of Usher syndrome. The defined sequence and biochemical properties of this peptide make it a valuable tool for a range of experimental applications in protein science and cell biology research.

Protein interaction studies: Researchers frequently employ this peptide segment to investigate specific binding motifs within the Usherin protein, enabling detailed mapping of interaction sites with extracellular or membrane-associated partners. By incorporating the synthetic fragment into binding assays such as surface plasmon resonance, immunoprecipitation, or pull-down experiments, scientists can dissect the molecular determinants that mediate Usherin's association with other matrix components or cell surface receptors. These insights contribute to a more comprehensive understanding of the extracellular signaling networks and adhesion complexes relevant to sensory tissue architecture.

Antibody epitope mapping: The defined sequence of the Usherin 3700-3711 peptide serves as an ideal antigen for generating and characterizing antibodies targeting the C-terminal region of the protein. Researchers utilize the fragment in immunization protocols, as well as in ELISA, Western blot, and immunohistochemistry assays, to validate antibody specificity and affinity. Such applications are essential for developing reliable immunological tools that facilitate the detection, quantification, and localization of Usherin isoform B in diverse biological samples, supporting both basic and translational research objectives.

Peptide-based functional assays: The synthetic peptide is instrumental in functional studies designed to probe the biological activity of Usherin domains. By introducing the fragment into in vitro cell culture systems or ex vivo tissue models, investigators can assess its capacity to modulate cellular adhesion, migration, or signaling pathways. These experiments help clarify the functional contributions of discrete Usherin motifs to cell-matrix interactions and may reveal new aspects of extracellular matrix biology relevant to sensory epithelia.

Structural and conformational analysis: The Usherin isoform B (3700-3711) peptide provides a defined substrate for biophysical investigations, including circular dichroism spectroscopy, nuclear magnetic resonance, or crystallography. Such studies yield valuable information about the secondary structure, folding propensity, and conformational dynamics of the C-terminal sequence in isolation. Insights from these analyses inform broader structure-function relationships within the full-length Usherin protein and can guide the rational design of peptide mimetics or inhibitors.

Peptide synthesis and method validation: Laboratories involved in custom peptide synthesis or analytical method development use fragments like this as reference standards or positive controls. The well-characterized sequence and biochemical behavior of the peptide make it suitable for validating chromatographic separation techniques, mass spectrometric detection, or purity assessment protocols. These applications ensure the reliability and reproducibility of peptide-focused workflows, supporting quality assurance in research and development environments.

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