CD8, also known as T8 or Leu2, is a type I transmembrane glycoprotein. It is a member of the immunoglobulin superfamily found on the majority of thymocytes, a subset of peripheral blood T cells and NK cells. As a co-receptor of MHC class I restricted T cell receptor, CD8 plays an important role in antigen recognition, signal transduction, T cell activation and thymus differentiation. CD8 usually exists as a dimer formed by α and β chains (CD8αβ) or two α chains (CD8αα). Among them, the CD8α chain is also called CD8a, and the CD8β chain is also called CD8b. Trans-8B9 monoclonal antibody specifically recognizes the CD8a molecule. After purification of Trans-8B9 monoclonal antibody by affinity chromatography, the antibodies were conjugated with fluorescein APC under optimal conditions and used for flow cytometric detection of CD8a on cell surface.
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at 2-8°C for one year
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ice bag (4℃)