In the realm of Ovalbumin (257-264) chicken | Octamer Peptide biochemical research and laboratory modeling, few substances have maintained the status of a gold-standard reference quite like ovalbumin peptides. As someone who has by SH Karandikar·2019·Cited by 41—MHC I–restricted epitopes of chickenovalbumin(OVA) were originally identified using CD8+T cells as probes.Read more spent significant time reviewing the literature by BJ McFarland·1999·Cited by 95—These results demonstrate that a singlepeptidecan bind to an MHCpeptidein alternate registers producing distinct T-cell responses.Read more on model antigens, it is fascinating to see how the scientific community utilizes these specific fragments to unlock deeper insights into molecular interactions.
Understanding the Source: What is Ovalbumin?
At its core, Ovalbumin (often abbreviated as OVA) is the predominant egg-white protein, The peptide is studied as part of Ovalbumin (UniProt:P01012) from chicken. It is a MHC-II binding epitope,stimulating ovalbumin-specific CD4+ T cells. OVA- Read more accounting for approximately 54% to 65% of the total protein content in chicken egg whites. Classified as a 43kDa glycoprotein belonging to the serpin superfamily, it serves as a foundational protein for researchers worldwide. When we discuss ovalbumin peptides, we are referring to specific, truncated sequences derived from this parent molecule.
From my experience observing laboratory protocols, OVA is widely used in allergy research and immunological studies because its structure is well-characterized. Whether it is the OVA peptide mainly exists in egg white or synthesized in a laboratory, its consistency makes it an ideal model antigen.
Key Variations and Their Roles
The utility of these compounds often comes down to specific sequences. Two of the most frequently discussed fragments in the literature include:
1. OVA (257-264): Commonly known as the SIINFEKL peptide, this is an ovalbumin-derived peptide that acts as a class I (Kb)-restricted epitope. It is essentially a prominent antigen peptide derived from chicken ovalbumin protein (UniProt ID: P01012) that is routinely utilized to test immune responses.
2. OVA (323-339): Known as the Ovalbumin protein Ova (323-339), this sequence is primarily recognized as an MHC class II-restricted epitope. It is famously used for studies of immunological allergic responses, such as asthma or food sensitivities, providing a controlled way to observe how biological systems react to specific triggers.
Why Researchers Focus on These Sequences
When researchers acquire these materials, they often look for lyophilized peptides to ensure long-term stability and ease of reconstitution. The OVA257-264 peptide (SIINFEKL) is particularly valued because it is a peptide that can be synthesized to high purity, allowing for precise titration in experimental setups.
Ovalbumin Epitope SIINFEKL Self-Assembles into aFurthermore, the ova 8454852.pdf lbumin epitope SIINFEKL self-assembles under specific conditions, which is a detail I find particularly intriguing for those studying peptide structural biology. Whether you are looking into how Ovalbumin is used for studies of immunological allergic responses or simply characterizing the Ovalbumin (OVA structure, the specificity of these sequences is paramount.
Practical Observations in Laboratory Settings
In my own review of the available materials, it SIINFEKL, an ovalbumin-derived peptide, is known to arise from natural processing of ovalbumin H-2b mouse cells. Cytotoxic T lymphocytes (CTL) from the Read more is clear that the distinction between Ovalbumin and standard albumin (often confused due to naming conventions) is vital. Ovalbumin is the main protein found in egg white, and its role as an antigen that can be used to induce cystitis in specific an The binding of 125I-labeled immunogenicpeptidesto purified Ia molecules in detergent solution was examined by equilibrium dialysis. imal models highlights its potency as a tool for creating controlled, reproducible laboratory conditions.
For those interested in the function of these molecules, the literature emphasizes that stimulating ovalbumin-specific CD4+ T cells remains the primary application for the 323-339 sequence. Because two peptides from the ovalbumin (OVA) model antigen are so readily available through commercial suppliers like InvivoGen, researchers have a reliable supply chain to maintain the integrity of their long-term studies.
Final Thoughts
Whether you are investigating the Ovalbumin peptide (C74H120N26O25) or performing high-throughput screening with ovalbumin peptides, the reliability of these fragments is what allows for consistent data across the global scientific community. As an enthusiast of biochemical research, I find that the precision offered by these Ovalbumin (257-264 and 323-339 sequences continues to make them the gold standard for anyone seeking to understand the complexities of antigen-antibody interactions. Always ensure you are sourcing these from reputable suppliers to maintain the necessary purity for your specific research goals.