Monoclonal anti CD8 (RIV11)

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Catalog #: BNUB0333
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Product Description

Recognizes a protein of 32kDa, identified as CD8a (also known as CD8 chain, T cell co-receptor, Leu2, and T8). CD8 molecule consists of two chains, termed and chain, which are expressed as a disulphide-linked heterodimer or as an homodimer. CD8 is expressed on T cell subset (cytotoxic/suppressor T cells), thymocytes and NK cells. The majority of CD8+ T-cells expresses CD8 as heterodimer. Some subpopulation of CD8+ T cells as well as NK cells may express homodimer. CD8 functions as a co-receptor in concert with TCR for binding the MHC class I/peptide complex. The HIV-2 envelope glycoprotein binds CD8 chain (but not chain). The cytoplasmic domain of CD8 associates with p56lck tyrosine kinase.

Knapp W. et. al. Leukocyte Typing IV, p342-343, Oxford University Press, 1989 | Parnes JR, CD4 and CD8 in T cell lineage commitment: alterations induced by expression of a CD8/CD4 chimeric transgene. Semin Immunol 1994, 6:221-229. | Delon J. et al. CD8 expression allows T cell signaling by monomeric peptide-MHC complexes. Immunity 1998, 9(4):467-73 | Akimoto H, et al. Binding of HIV-2 envelope glycoprotein to CD8 molecules and related chemokine production. Immunology 1998, 95(2):214-218 | Leahy DJ. A structural view of CD4 and CD8. FASEB J. 1995,9(1):17-25. | Jonker M et al. Side effects and immunogenicity of murine lymphocyte-specific monoclonal antibodies in subhuman primates. Transplantation 1988, 45(4):677-682

Additional Information


Purified with BSA, 0.2 mg/mL, Purified, BSA-free, 1 mg/mL, CF405S, CF405M, CF488A, CF543, CF555, CF568, CF594, CF640R, CF647, CF660R, CF680, CF680R, CF770, Biotin, R-PE, APC, Per-CP, Alkaline Phosphatase, HRP


50 uL, 100 uL, 250 uL, 500 uL

Supplied As

Purified: 0.2 mg/mL in PBS/0.05% BSA/0.05% azide, Purified, BSA-free: 1 mg/mL in PBS without azide, Conjugates: 0.1 mg/mL in PBS/0.1% BSA/0.05% azide, HRP conjugates: 0.1 mg/mL in PBS/0.05% BSA

Antibody type


Host species


Reactivity (target)

CD8 (RIV11)




IgG1, kappa



Molecular weight

32 kDa


CD8 antigen, alpha polypeptide (p32), T8/Leu-2 T-lymphocyte differentiation antigen, Ly3, LYT3, MAL, T-cell surface glycoprotein CD8 alpha chain

Entrez gene ID







Human peripheral lymphocytes

Species reactivity



Flow cytometry, Immunofluorescence

Cellular localization

Cell surface

Application notes

Flow Cytometry (0.5-1 ug/million cells/0.1 mL), Immunofluorescence 0.5-1 ug/mL, Optimal dilution for a specific application should be determined by user

Positive control

HuT78 or hPBL. Tonsil

MSDS (PDF):MSDS Primary antibodies

Protocol (PDF): Protocols for antibody-based detection

Shipment Method: Shipping and handling methods will be assessed and calculated at time of shipment based upon item(s) storage temperature conditions.

Expedited shipment may be requested at time of checkout.

Please note that products with recommended storage at 4°C or -20°C may ship at ambient temperature. This will not affect product performance. When you receive the product, place it under the recommended storage conditions.

More information about product handling and shelf life