Anti-CD8 Antibody, Biotin-Labeled
This purified recombinant antibody is a humanized mouse anti-CD8 a (cluster of differentiation 8 a) antibody. This antibody has a C-terminal Avi-Tag™ on its heavy chain. This antibody recognized human CD8.
≥90%
Aqueous buffer solution.
8 mM phosphate, pH 7.4, 110 mM NaCl, 2.2 mM KCl, and 20% glycerol
This antibody is enzymatically biotinylated using Avi-Tag™ technology. Biotinylation was confirmed to be ≥90%.
For more information on enzymatic biotinylation, please see our Tech Note.
CD8 is a co-receptor for the TCR (T cell receptor) in T cells, binding to MHC (major histocompatibility complex) class I proteins. CD8 is a typical marker of cytotoxic T cells and is involved in signaling. CD8 has two isoforms, a and b. CD8b recruits Lck (lymphocyte-specific protein tyrosine kinase) to the TCR-CD3 complex, and Lck phosphorylates multiple proteins involved in activation of CTLs (cytotoxic T-lymphocytes. It is thus critical for the lysis of cancer cells. Antibodies against CD8 are currently used in the clinic for the diagnostic of cancer, as in the case of crefmirlimab.