Vac sin The dominant search intent for "ovalbumin peptide" is to understand specific ovalbumin-derived peptides, particularly those used in immunological research and as antigens. The search results highlight two primary peptide sequences: OVA 257-264 (SIINFEKL) and OVA 323-339, which are frequently discussed in the context of MHC presentation, T-cell activation, and allergy research.
Tier 1:
* Core Entities: Ovalbumin peptide, OVA peptide, Ovalbumin (257-264), OVA 323-339, SIINFEKL
* High-Relevance Phrases: MHC class I, MHC class II, T-cell activation, antigen peptide, immunological studies, allergy research
Tier 2:
* Supporting Entities: Ovalbumin, chicken ovalbumin, H-2Kb, I-A(d), PepTivator Ovalbumin, carrier protein
* Attributes/Variations: Peptide sequences, epitopes, T-cell response, CD8+ T cells, CD4+ T cells, experimental use, research applications
Tier 3:
* Chemical formulas (C74H120N26O25), specific CAS numbers, supplier-specific codes, overly technical chemical descriptions, repetitive mentions of "peptide" without context.
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Ovalbumin peptides are specific fragments derived from ovalbumin, a major protein found in egg whites. These peptides play a crucial role in immunological studies, serving as well-defined antigens for investigating immune responses. The most prominent ovalbumin peptide sequences in research are OVA 257-264, often referred to as SIINFEKL, and OVA 323-339. These sequences are extensively used to stimulate T cells and explore mechanisms of immune recognition, making them vital tools in allergy research and vaccine development.
Ovalbumin (OVA) itself is a large protein, but specific linear segments, or peptides, are recognized by the immune systemOVA Antigens | InvivoGen. These recognized segments are known as epitopes.OVA peptides The research community frequently utilizes two particular ovalbumin peptide epitopes due to their well-characterized interactions with the Major Histocompatibility Complex (MHC) molecules, which are central to presenting antigens to T cells.
* OVA 257-264 (SIINFEKL): This peptide is a classic example of an epitope recognized by MHC class I molecules, specifically H-2Kb in miceOVA Antigens | InvivoGen. It is a key stimulus for CD8+ T cells, which are critical for cellular immunity. The SIINFEKL peptide is widely employed in experiments to activate and study ovalbumin-specific CD8+ T cells, assess T-cell receptor interactions, and evaluate new vaccine adjuvants. Its defined sequence and presentation pathway make it a reliable tool for reproducible immunological research作者：Y Zeng·2025·被引用次数：1—This study investigated the immunomodulatory activity of OP-SeNPs in cyclophosphamide (CTX)-induced immunosuppressed mice on immune organs, molecules, and ....
* OVA 323-339: In contrast, the OVA 323-339 peptide is recognized by MHC class II molecules, such as I-A(d) in mice. This peptide is primarily involved in stimulating CD4+ T cells, which play diverse roles in the immune response, including helping B cells produce antibodies and modulating other immune cells. This peptide is particularly relevant in studies of allergic responses, as it has been shown to be responsible for a significant portion of the immune reaction in certain mouse models of allergy.
The precise nature of ovalbumin peptides like SIINFEKL and OVA 323-339 makes them invaluable for a variety of experimental applications.
* T-Cell Stimulation: Researchers use these peptides to activate specific T-cell populations in vitro and in vivo.OVA peptide - MedchemExpress.com This allows for the measurement of immune responses, such as cytokine production (e.OVA Peptide (257-264) | PEPTIDE INSTITUTE, INC.g., IFN-γ) or T-cell proliferation, providing insights into T-cell function and specificity. For instance, OVA 257-264 is routinely used to stimulate mouse peripheral blood mononuclear cells (PBMCs) to quantify peptide epitope specificity.
* Allergy Models: Given that ovalbumin is a common allergen, its derived peptides are used to induce and study allergic reactions in animal models.Ovalbumin Epitope SIINFEKL Self-Assembles into a ... The OVA 323-339 peptide, for example, is utilized to model T-cell mediated allergic responses.作者：LZ Sun·2010·被引用次数：54—Ovalbumin (OVA)is widely used in allergy research. OVA peptide 323-339 has been reported to be responsible for 25–35% of isolated BALB/c mouse ... Understanding how these peptides interact with MHC class II and elicit CD4+ T-cell responses is fundamental to developing strategies for allergy treatment and preventionOvalbumin (OVA), a major allergen protein present in egg whites, is also widely used as a model antigen in immunological studies due to its immunostimulant ....
* Vaccine Development: Ovalbumin peptides serve as model antigens in the development and testing of new vaccines. Researchers can use these peptides to assess the immunogenicity of vaccine candidates, ensuring that they effectively prime the immune system to recognize specific epitopes.Peptide Institute, Inc. is a global supplier ofOVA Peptide (257-264) from Japan. Name:OVA Peptide (257-264), Code:4529-v, T-cell Activating Peptide. The SIINFEKL peptide, in particular, is a standard for testing vaccine adjuvants designed to enhance CD8+ T-cell immunityBioseutica® | OVALBUMIN.
* Diagnostic Assays: While not as common as research applications, specific ovalbumin peptides can be incorporated into diagnostic assays. For example, they might be used as standards or controls in enzyme-linked immunosorbent assays (ELISA) or other immunoassays designed to detect antibodies or T-cell responses related to ovalbumin exposure.
When working with ovalbumin peptides, researchers typically source them as synthetic, purified products. These peptides are often supplied in a lyophilized form, requiring reconstitution before use作者：Y Zeng·2025·被引用次数：1—This study investigated the immunomodulatory activity of OP-SeNPs in cyclophosphamide (CTX)-induced immunosuppressed mice on immune organs, molecules, and .... It is crucial to use peptides of high purity and appropriate sequence to ensure reliable and reproducible experimental outcomesOVA Peptide (323-339) 代表卵清蛋白(OVA)的T和B细胞表位，这对于BALB/c小鼠的瞬时超敏反应的产生和发展是重要的。 MCE 的所有产品仅用作科学研究或药证申报，我们不为 .... The specific peptide sequence, its purity, and the MHC restriction it binds to are critical factors determining its utility in various immunological experiments. For example, PepTivator Ovalbumin offers a pool of peptides for broader immune stimulation, while specific sequences like OVA 257-264 or OVA 323-339 are chosen for targeted researchOVA (257-264) (H-2Kb) | 1 mg | EP01994_1.
In summary, ovalbumin peptides, particularly OVA 257-264 (SIINFEKL) and OVA 323-339, are indispensable tools in immunology and allergy research. Their well-defined interactions with MHC molecules and capacity to stimulate specific T-cell populations make them essential for understanding cellular immunity, allergic mechanisms, and advancing vaccine technologiesOvalbumin(257-264) is a syntheticpeptidefragment corresponding to the mouse MHC class I (H-2Kb) CD8+T cell-restricted epitope of chickenovalbumin..
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