CD8 Mouse anti-Human, Brilliant Violet 421, Clone: HIT8a, BD Optibuild™
Mouse Monoclonal Antibody
Manufacturer: BD Biosciences 740078
The HIT8a monoclonal antibody specifically binds to CD8a ( CD8α ). CD8α is a type I transmembrane glycoprotein and a member of the immunoglobulin superfamily. CD8α is expressed by the majority of thymocytes, by subpopulations of αβ T cells and γδ T cells and by some NK cells. Cell surface CD8α is expressed either as a disulfide-linked homodimer (CD8αα) or as a heterodimer (CD8αβ) when disulfide-bonded to a CD8 beta chain (CD8β). CD8-positive αβ T cells coexpress both CD8αα homodimers and CD8αβ heterodimers whereas some γδ T cells and NK cells express CD8αα homodimers. CD8 plays important roles in T cell activation and selection. The extracellular IgSF domain of CD8α binds to a non-polymorphic determinant on HLA class I molecules (α3 domain) and enables CD8 to function as a co receptor with MHC class I-restricted TCR during T cell recognition of antigen. The cytoplasmic domain of CD8α associates with Lck, a Src family protein tyrosine kinase that is involved in intracellular signaling. Clones HIT8a and RPA-T8 are not cross-blocking.
|Brilliant Violet 421|
|Aqueous buffered solution containing ≤0.09% sodium azide.|
|The monoclonal antibody was purified from tissue culture supernatant or ascites by affinity chromatography.|
|CD8α; CD8A; CD8 alpha; Leu2a; MAL; T8; p32|
|Store undiluted at 4°C and protected from prolonged exposure to light. Do not freeze.|
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