SSA protein SS-56 (55-64)

SSA protein SS-56 (55-64) is a synthetic peptide fragment corresponding to amino acid residues 55 through 64 of the human SSA/Ro protein, a component of the Ro/SSA ribonucleoprotein complex. This peptide is derived from an immunologically significant region of the SSA/Ro protein, which plays a key role in RNA binding and is recognized in various studies focused on autoimmunity and molecular immunology. The segment's defined sequence and structural features make it valuable for research into protein-protein interactions, epitope mapping, and the biochemical mechanisms underlying antigenicity. As a well-characterized peptide, it serves as a precise tool for investigating the molecular determinants of SSA/Ro function and its involvement in cellular processes.

Epitope Mapping: The SS-56 (55-64) peptide is widely utilized in epitope mapping studies to delineate the specific regions of the SSA/Ro protein that are recognized by autoantibodies. By employing this peptide in immunoassays such as ELISA or Western blotting, researchers can identify and characterize linear B-cell epitopes, thereby advancing the understanding of antigen-antibody interactions at a molecular level. Such mapping is critical for elucidating the immunodominant sites within the SSA/Ro protein and contributes to the broader field of autoimmune disease research.

Autoantibody Detection Research: In the context of immunological investigations, this peptide fragment serves as a defined antigenic substrate for the detection and quantification of autoantibodies directed against the SSA/Ro protein. Its use in serological assays enables the study of antibody specificity and prevalence in patient-derived samples, facilitating the exploration of humoral immune responses. The peptide's defined sequence allows for controlled experimental conditions, supporting rigorous analysis of antibody-antigen recognition dynamics.

Peptide-Protein Interaction Studies: The SS-56 (55-64) peptide is employed as a molecular probe in studies examining the binding affinity and specificity of proteins that interact with the SSA/Ro complex. By incorporating the peptide into binding assays or structural studies, researchers can dissect the contributions of discrete protein segments to overall complex formation and stability. Such investigations are essential for understanding the structural basis of ribonucleoprotein assembly and function.

Peptide Synthesis and Modification Research: As a synthetic peptide, SS-56 (55-64) is frequently used in the development and optimization of peptide synthesis protocols. Its moderate length and well-defined sequence make it a suitable model for evaluating solid-phase peptide synthesis efficiency, post-synthetic modifications, and peptide purification strategies. Researchers benefit from using this fragment as a benchmark in method development for the production of high-quality peptides for research use.

Immunological Assay Development: The SS-56 (55-64) peptide is valuable in the design and validation of immunoassay platforms intended for the study of autoantigen-autoantibody interactions. By incorporating the peptide into assay substrates or calibration standards, scientists can optimize assay sensitivity, specificity, and reproducibility. This application supports the creation of robust analytical tools for immunological research, enabling detailed characterization of immune recognition processes involving the SSA/Ro protein.

1. Emu oil in combination with other active ingredients for treating skin imperfections

2. Urinary Metabolites Associated with Blood Pressure on a Low-or High-Sodium Die

3. C-Peptide replacement therapy and sensory nerve function in type 1 diabetic neuropathy

4. A possible role of tachykinin-related peptide on an immune system activity of mealworm beetle, Tenebrio molitor L

5. Proinsulin C-peptide and insulin: Limited pattern similarities of interest in inter-peptide interactions but no C-peptide effect on insulin and IGF-1 receptor signaling