{"product_id":"cd8a-antibody-cd8-alpha-bha17110514","title":"Cd8a Antibody \/ CD8 alpha","description":"\u003ch2\u003eOverview\u003c\/h2\u003e \u003cp\u003eCd8a Antibody \/ CD8 alpha is a research-use primary antibody intended for detection of \u003cstrong\u003eCD8A\u003c\/strong\u003e in experimental workflows. It is supplied in \u003cstrong\u003eAntigen affinity purified\u003c\/strong\u003e format. Key antibody attributes include Rabbit, Polyclonal (rabbit origin), isotype Rabbit IgG. Applications listed for this product include WB, IHC-P, FACS, Direct ELISA. Species reactivity (as provided): Mouse, Rat.\u003c\/p\u003e \u003ch2\u003eKey elements and design rationale\u003c\/h2\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget:\u003c\/strong\u003e CD8A (CD8 alpha) — selectivity and interpretation should be considered in the context of isoforms, post-translational modifications, and related family members when applicable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Antigen affinity purified — format can influence background, multiplexing compatibility, and downstream detection strategies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntibody identity:\u003c\/strong\u003e Rabbit, Polyclonal (rabbit origin), isotype Rabbit IgG — these attributes help align secondary reagents and controls (e.g., isotype-matched controls) with your assay design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct notes (from provided description):\u003c\/strong\u003e The CD8 antigen is a cell surface glycoprotein found on most cytotoxic T lymphocytes that mediates efficient cell-cell interactions within the immune system. It is mapped to 2p11.2. The CD8 antigen, acting as a coreceptor, and the T-cell receptor on the T lymphocyte recognize antigen displayed by an antigen presenting cell (APC) in the context of class I MHC molecules. The functional coreceptor is either a homodimer composed of two alpha chains, or a heterodimer composed of one alpha and one beta chain. Both alpha and beta chains share significant homology to immunoglobulin variable light chains. This gene also encodes the CD8 alpha chain isoforms.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhere multiple assay formats are possible, align the antibody format, host\/isotype, and listed applications with your detection system and controls to support clear interpretation of signal.\u003c\/p\u003e \u003ch2\u003eBiological background\u003c\/h2\u003e \u003cp\u003eIn this catalog, CD8A is positioned within \u003cstrong\u003eImmunology \u0026amp; Inflammation\u003c\/strong\u003e research contexts. For authoritative gene\/protein nomenclature, domains\/isoforms, and curated functional annotations, consult resources such as UniProt, NCBI Gene, and Ensembl.\u003c\/p\u003e \u003ch2\u003eResearch relevance and current trends\u003c\/h2\u003e \u003cul\u003e\n\u003cli\u003eHigher-plex and spatially resolved readouts (e.g., multiplex IF\/IHC, spatial omics) are increasing demand for well-characterized primary antibodies with clearly stated host\/isotype and labeling strategies.\u003c\/li\u003e\n\u003cli\u003eGenetic perturbation controls (knockout\/knockdown) and orthogonal measurements (e.g., RNA vs protein) are commonly used to strengthen target attribution when interpreting antibody-derived signals.\u003c\/li\u003e\n\u003cli\u003eReproducibility initiatives emphasize transparent reporting of antibody identity (clone, host, isotype) and experimental context to improve cross-study comparability.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eCommon research applications\u003c\/h2\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWB:\u003c\/strong\u003e interpret changes in signal in the context of sample composition, epitope accessibility, and potential isoform\/PTM differences across conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIHC-P:\u003c\/strong\u003e interpret changes in signal in the context of sample composition, epitope accessibility, and potential isoform\/PTM differences across conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFACS:\u003c\/strong\u003e interpret changes in signal in the context of sample composition, epitope accessibility, and potential isoform\/PTM differences across conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect ELISA:\u003c\/strong\u003e interpret changes in signal in the context of sample composition, epitope accessibility, and potential isoform\/PTM differences across conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical workflow themes:\u003c\/strong\u003e Western blot validation, IHC on FFPE tissue, Flow cytometry staining, ELISA binding assay, Specificity controls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorkflow notes:\u003c\/strong\u003e Validate ALPHA by Western blot in cell\/tissue lysates (include controls), Detect ALPHA by IHC in FFPE tissue sections (optimize antigen retrieval + dilution), Quantify ALPHA-positive cells by flow cytometry in single-…\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eWhen comparing conditions, consistent sample processing and appropriate negative\/positive controls support interpretation of qualitative localization differences and quantitative abundance changes.\u003c\/p\u003e \u003ch2\u003eNotes for experimental interpretation\u003c\/h2\u003e \u003cul\u003e\n\u003cli\u003eIsoforms and post-translational modifications may shift apparent molecular weight or epitope accessibility, especially across cell states or treatments.\u003c\/li\u003e\n\u003cli\u003eSpecies and tissue context can affect sequence conservation, expression level, and background binding; predicted reactivity should be verified in your sample.\u003c\/li\u003e\n\u003cli\u003eControl concepts include isotype-matched controls, secondary-only controls (for indirect detection), and genetic\/orthogonal controls (e.g., KO\/KD, independent antibodies, or RNA measurements) when feasible.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eMonoclonal and polyclonal antibodies can differ in epitope recognition breadth and lot-to-lot characteristics; consider clonality and clone information (when provided) alongside your assay requirements. Conjugated formats may simplify detection but can change background and multiplexing behavior compared with unconjugated primaries.\u003c\/p\u003e \u003c!-- Sources (internal): - UniProt Knowledgebase (UniProtKB) — UniProt Consortium — https:\/\/www.uniprot.org\/ - NCBI Gene — National Center for Biotechnology Information (NCBI) — https:\/\/www.ncbi.nlm.nih.gov\/gene\/ - Ensembl Genome Browser — EMBL-EBI — https:\/\/www.ensembl.org\/ - The Human Protein Atlas — Human Protein Atlas — https:\/\/www.proteinatlas.org\/ - Antibody validation concepts and controls (general guidance) — NIH \/ community resources — https:\/\/www.nih.gov\/ - MIQE\/experimental reporting \u0026 reproducibility (general) — Scientific community guidelines — https:\/\/www.equator-network.org\/ --\u003e","brand":"NSJ Bioreagents","offers":[{"title":"0.5mg\/ml if reconstituted with 0.2ml sterile DI water \/ 100 ug","offer_id":53044862255469,"sku":"RQ5874","price":449.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0949\/7424\/7277\/files\/get_image_fbe99f1d-23fb-4b8a-b1e3-cf8065a72ad5.jpg?v=1782236613","url":"https:\/\/www.ebiohippo.com\/products\/cd8a-antibody-cd8-alpha-bha17110514","provider":"BioHippo","version":"1.0","type":"link"}