Centriolin (2174-2182)

Centriolin (2174-2182) is a synthetic peptide fragment corresponding to amino acids 2174 through 2182 of the centriolin protein, a key component involved in centrosome function and cell division. As a defined peptide sequence derived from a functionally significant domain, it serves as a valuable molecular tool for dissecting the roles of centriolin in centrosome maturation, cytokinesis, and microtubule organization. Its biochemical properties and sequence specificity make it particularly useful in research settings focused on understanding the molecular mechanisms governing centrosomal dynamics and cell cycle regulation.

Cell Biology Research: In cellular and molecular biology studies, the 2174-2182 peptide fragment enables targeted investigation of centriolin's role in centrosome-associated processes. Researchers utilize this peptide to probe protein-protein interactions at the centrosome, elucidating the molecular determinants that underlie centrosome cohesion, spindle assembly, and the fidelity of cell division. By employing it in immunoprecipitation assays or as a competitive inhibitor, scientists can dissect the contribution of the centriolin C-terminal region to centrosomal architecture and function.

Peptide Mapping and Antibody Production: The defined sequence of this centriolin-derived peptide is highly advantageous for generating sequence-specific antibodies. By serving as an immunogen, it facilitates the production of polyclonal or monoclonal antibodies that recognize the corresponding region of the native protein. These antibodies are instrumental in immunoblotting, immunofluorescence, and immunoprecipitation experiments, enabling precise localization and quantification of centriolin in diverse cell types and experimental models.

Protein-Protein Interaction Studies: The peptide is routinely employed in biochemical assays to map interaction domains within centriolin or between centriolin and its binding partners. Through peptide pull-down experiments or surface plasmon resonance analyses, researchers can determine binding affinities and identify critical residues mediating centriolin's interactions with regulatory proteins involved in cell cycle progression and centrosome function. Such studies provide mechanistic insight into how centriolin orchestrates complex cellular events.

Functional Assays in Peptide Competition: Inhibition or modulation of centriolin-mediated processes can be achieved by introducing the synthetic peptide into cultured cells or in vitro systems. By competitively blocking endogenous protein interactions, the peptide enables functional dissection of centriolin's role in cytokinesis, centrosome separation, or microtubule dynamics. These approaches are essential for delineating the specific contributions of the 2174-2182 region to cellular phenotypes and for validating potential regulatory mechanisms.

Peptide Synthesis and Analytical Method Development: As a well-characterized peptide fragment, it is frequently used as a standard or reference material in peptide synthesis optimization and analytical method validation. Its defined sequence and physicochemical properties support the calibration of chromatographic systems, mass spectrometry workflows, and peptide quantification protocols. This application is particularly relevant for laboratories developing or benchmarking peptide-based analytical techniques, ensuring accuracy and reproducibility in peptide research and quality control settings.

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