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CD8 alpha (D8A8Y) Feline Chimeric Monoclonal Antibody #61120

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  • IHC

    Product Specifications

    REACTIVITY H Mk
    SENSITIVITY Endogenous
    MW (kDa)
    Source/Isotype Feline chimeric IgG1
    Application Key:
    • IHC-Immunohistochemistry 
    Species Cross-Reactivity Key:
    • H-Human 
    • Mk-Monkey 

    Product Information

    Product Description

    This Cell Signaling Technology® antibody retains the antigen-binding Fab regions of the original parent host sequence from which it is engineered. This antibody is expected to exhibit the same species cross-reactivity as CD8 alpha (D8A8Y) Rabbit Monoclonal Antibody #85336.

    Product Usage Information

    Application Dilution
    Immunohistochemistry (Paraffin) 1:50 - 1:200

    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.

    Protocol

    Specificity / Sensitivity

    CD8 alpha (D8A8Y) Feline Chimeric Monoclonal Antibody recognizes endogenous levels of total CD8α protein. Monkey species reactivity is immunohistochemistry (Paraffin) only.

    Species Reactivity:

    Human, Monkey

    Source / Purification

    This recombinant chimeric antibody is engineered from CD8 alpha (D8A8Y) Rabbit Monoclonal Antibody #85336 according to animal-free protocols. The chimeric antibody retains its antigen-binding Fab regions from the original rabbit antibody, but contains a feline-derived Fc domain. When multiplexing, Fc-directed rabbit secondaries are required to detect rabbit-host primary antibodies.

    The parent antibody, CD8 alpha (D8A8Y) Rabbit Monoclonal Antibody #85336, is produced by immunizing animals with a synthetic peptide corresponding to residues near the carboxy terminus of human CD8α 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

    For Research Use Only. Not for Use in Diagnostic Procedures.
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