CD8A Antibody

• Catalog Number: orb1823969
• Category: Antibodies
• Description: This mAb is specific for the 32kDa alpha chain of human CD8, known as CD8a or CD8 alpha. CD8 is a cell surface receptor expressed either as a heterodimer with the CD8 beta chain (CD8 alpha/beta) or as a homodimer (CD8 alpha/alpha). A majority of thymocytes and a subpopulation of mature T cells and NK cells express CD8a. CD8 binds to MHC class 1 and through its association with protein tyrosine kinase p56lck plays a role in T cell development and activation of mature T cells. For mature T-cells, CD4 and CD8 are mutually exclusive, so anti-CD8, generally used in conjunction with anti-CD4. It is a useful marker for distinguishing helper/inducer T-lymphocytes, and most peripheral T-cell lymphomas are CD4+/CD8-. Anaplastic large cell lymphoma is usually CD4+ and CD8-, and in T-lymphoblastic lymphoma/leukemia, CD4 and CD8 are often co-expressed. CD8 is also found in littoral cell angioma of the spleen.
• Clonality: Recombinant
• Species/Host: Rabbit
• Isotype: Rabbit IgG, kappa
• Conjugation: Unconjugated
• Reactivity: Human
• Immunogen: Recombinant human full-length CD8a protein was used as the immunogen for the CD8A antibody.
• UniProt ID: P01732
• Tested applications: IHC-P
• Dilution range: Immunohistochemistry (FFPE): 1-2ug/ml for 30 min at RT
• Antibody Type: Primary Antibody
• Clone Number: CD8/7793R
• Formula: 1 mg/ml in 1X PBS; BSA free, sodium azide free
• Storage: Maintain refrigerated at 2-8°C for up to 2 weeks. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.
• Hazard Information: This CD8A antibody is available for research use only.
• Note: For research use only

IHC staining of FFPE human lymph node tissue with CD8a antibody (clone CD8/7793R). Inset: PBS used in place of primary Ab (secondary Ab negative control). HIER: boil tissue sections in pH9 10 mM Tris with 1 mM EDTA for 20 min and allow to cool before testing.