CST, 70306S, CD8 alpha (C8/144B) Mouse Monoclonal Antibody

Monoclonal Antibody for studying CD8A. Validated for Immunohistochemistry (Paraffin). Available in 2 sizes. Highly specific and rigorously validated in-house, CD8 alpha (C8/144B) Mouse Monoclonal Antibody (CST #70306) is ready to ship. Product Usage Information Immunohistochemistry (Paraffin): 1:100 - 1:400 Storage Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at -20°C. Do not aliquot the antibody. For a carrier free (BSA and azide free) version of this product see product # 90257 . Protocol Available protocols: Immunohistochemistry (Paraffin) Specificity / Sensitivity CD8 alpha (C8/144B) Mouse Monoclonal Antibody recognizes endogenous levels of total CD8 protein. Species Reactivity: Human Source / Purification Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human CD8 protein. Background Cluster of Differentiation 8 (CD8) is a disulphide-linked heterodimer consisting of the unrelated α and β subunits. Each subunit is a glycoprotein composed of a single extracellular Ig-like domain, a polypeptide linker, a transmembrane part and a short cytoplasmic tail. On T cells, CD8 is the coreceptor for the T cell receptor (TCR), and these two distinct structures recognize the Antigen-Major Histocompatibility Complex (MHC). Specifically, the Ig-like domain of CD8α interacts with the α3-domain of the MHC class I molecule. CD8 ensures specificity of the TCR-antigen interaction, prolongs the contact between the T cell and the antigen presenting cell, and the α chain recruits the tyrosine kinase Lck, which is essential for T cell activation (1). Alternate Names CD8; CD8 antigen alpha polypeptide; CD8 antigen, alpha polypeptide (p32); CD8A; CD8a molecule; Leu2; Leu2 T-lymphocyte antigen; MAL; OKT8 T-cell antigen; p32; T cell co-receptor; T-cell antigen Leu2; T-cell surface glycoprotein CD8 alpha chain; T-lymphocyte differentiation antigen T8/Leu-2; T8 T-cell antigen Specification REACTIVITY: H SENSITIVITY: Endogenous Source/Isotype: Mouse IgG1