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CD8 Alpha antibody | KT15

Rat anti Mouse CD8 Alpha:Alexa Fluor® 647

Product Type
Monoclonal Antibody
CD8 Alpha

Product Code Applications Pack Size List Price Your Price Qty
Datasheet Datasheet Datasheet
SDS Safety Datasheet SDS
F 25 Tests/0.25ml loader
List Price Your Price
Datasheet Datasheet Datasheet
SDS Safety Datasheet SDS
F 100 Tests/1ml loader
List Price Your Price

Rat anti Mouse CD8α, clone KT15, recognizes the alpha chain of mouse CD8. CD8 is a heterodimeric protein composed of disulphide-linked CD8α and CD8β chains that is expressed primarily on cytotoxic T-cells. CD8 functions in the interaction with MHC Class I-bearing targets and plays a role in T-cell-mediated killing (Nakauchi , H. et al., 1985 & Nakauchi, H. et al., 1987).

Clone KT15 is reported to block T-cell-mediated cytotoxicity in in vitro assays (Zeis, M. et al., 2002).

Target Species
Product Form
Purified IgG conjugated to Alexa Fluor® 647 - liquid
Purified IgG prepared by affinity chromatography on Protein G from tissue culture supernatant
Buffer Solution
Phosphate buffered saline
Preservative Stabilisers
0.09%Sodium Azide
1%Bovine Serum Albumin
T cell clone, C6
Approx. Protein Concentrations
IgG concentration 0.05 mg/ml
Fusion Partners
Spleen cells from immunized SD rats were fused with cells of the NS0 mouse myeloma cell line
Max Ex/Em
Fluorophore Excitation Max (nm) Emission Max (nm)
Alexa Fluor®647 650 665
For research purposes only
12 months from date of despatch
This product is provided under an intellectual property licence from Life Technologies Corporation. The transfer of this product is contingent on the buyer using the purchase product solely in research, excluding contract research or any fee for service research, and the buyer must not sell or otherwise transfer this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; (c) manufacturing or quality assurance or quality control, or (d) resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5791 Van Allen Way, Carlsbad CA 92008 USA or

This product is shipped at ambient temperature. It is recommended to aliquot and store at -20°C on receipt. When thawed, aliquot the sample as needed. Keep aliquots at 2-8°C for short term use (up to 4 weeks) and store the remaining aliquots at -20°C.

Avoid repeated freezing and thawing as this may denature the antibody. Storage in frost-free freezers is not recommended. This product is photosensitive and should be protected from light.

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application Name Verified Min Dilution Max Dilution
Flow Cytometry Neat 1/10
Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.
Flow Cytometry
Use 10ul of the suggested working dilution to label 106 cells in 100ul.

The Fc region of monoclonal antibodies may bind non-specifically to cells expressing low affinity Fc receptors. This may be reduced by using SeroBlock FcR ( BUF041A/B).

How to Use the Spectraviewer

Watch the Tool Tutorial Video ▸
  • Start by selecting the application you are interested in, with the option to select an instrument from the drop down menu or create a customized instrument
  • Select the fluorophores or fluorescent proteins you want to include in your panel to check compatibility
  • Select the lasers and filters you wish to include
  • Select combined or multi-laser view to visualize the spectra

Description Product Code Applications Pack Size List Price Your Price Quantity
Rat IgG2a Negative Control:Alexa Fluor® 647 MCA1212A647 F 100 Tests/1ml loader
List Price Your Price
Description Rat IgG2a Negative Control:Alexa Fluor® 647

Description Product Code Applications Pack Size List Price Your Price Quantity
Mouse Seroblock FcR BUF041A F 0.1 mg loader
List Price Your Price
Description Mouse Seroblock FcR
Mouse Seroblock FcR BUF041B F 0.5 mg loader
List Price Your Price
Description Mouse Seroblock FcR

References for CD8 Alpha antibody

  1. Tomonari, K. & Lovering, E. (1988) T-cell receptor-specific monoclonal antibodies against a V beta 11-positive mouse T-cell clone.
    Immunogenetics. 28 (6): 445-51.
  2. Whiteland, J.L. et al. (1995) Immunohistochemical detection of T-cell subsets and other leukocytes in paraffin-embedded rat and mouse tissues with monoclonal antibodies.
    J Histochem Cytochem. 43 (3): 313-20.
  3. Lee, Y.L. et al (2003) Oral administration of Agaricus blazei (H1 strain) inhibited tumor growth in a sarcoma 180 inoculation model.
    Exp Anim. 52: 371-5.
  4. Eller, K. et al. (2011) IL-9 production by regulatory T cells recruits mast cells that are essential for regulatory T cell-induced immune suppression.
    J Immunol. 186: 83-91.
  5. Grimm, M. et al. (2010) Evaluation of immunological escape mechanisms in a mouse model of colorectal liver metastases.
    BMC Cancer. 10: 82.
  6. Liao, D. et al. (2009) Cancer Associated Fibroblasts Promote Tumor Growth and Metastasis by Modulating the Tumor Immune Microenvironment in a 4T1 Murine Breast Cancer Model
    PLoS One. 4: e7965.
  7. Moos, M.P. et al. (2005) The lamina adventitia is the major site of immune cell accumulation in standard chow-fed apolipoprotein E-deficient mice.
    Arterioscler Thromb Vasc Biol. 25: 2386-91.
  8. Stevenson, P.G. et al. (2002) Uncoupling of virus-induced inflammation and anti-viral immunity in the brain parenchyma.
    J Gen Virol. 83: 1735-43.
  9. View The Latest Product References
  10. Wang, X. et al. (2011) Quercetin and Bornyl Acetate Regulate T-Lymphocyte Subsets and INF-γ/IL-4 Ratio In Utero in Pregnant Mice.
    Evid Based Complement Alternat Med. 2011: 745262.
  11. Zeis, M. et al. (2002) Idiotype protein-pulsed dendritic cells produce strong anti-myeloma effects after syngeneic stem cell transplantation in mice.
    Bone Marrow Transplant. 29: 213-21.
  12. Ideguchi, M. et al. (2008) Immune or inflammatory response by the host brain suppresses neuronal differentiation of transplanted ES cell-derived neural precursor cells.
    J Neurosci Res. 86: 1936-43.
  13. Wolf, D. et al. (2005) CD4+CD25+ regulatory T cells inhibit experimental anti-glomerular basement membrane glomerulonephritis in mice.
    J Am Soc Nephrol. 16: 1360-70.
  14. Severinova, J. et al. (2005) Co-inoculation of Borrelia afzelii with tick salivary gland extract influences distribution of immunocompetent cells in the skin and lymph nodes of mice.
    Folia Microbiol (Praha). 50: 457-63.
  15. Zaini, J. et al. (2007) OX40 ligand expressed by DCs costimulates NKT and CD4+ Th cell antitumor immunity in mice.
    J Clin Invest. 117: 3330-8.
  16. Meyer, C. et al. (2011) Chronic inflammation promotes myeloid-derived suppressor cell activation blocking antitumor immunity in transgenic mouse melanoma model.
    Proc Natl Acad Sci U S A. 108: 17111-6.
  17. Zitt, E. et al. (2011) The selective mineralocorticoid receptor antagonist eplerenone is protective in mild anti-GBM glomeru-lonephritis.
    Int J Clin Exp Pathol. 4:606-15.
  18. Singh, V. et al. (2011) Co-administration of IL-1+IL-6+TNF-α with Mycobacterium tuberculosis infected macrophages vaccine induces better protective T cell memory than BCG.
    PLoS One. 6: e16097.
  19. Kalyanasundaram Bhanumathy, K. et al. (2015) Potent immunotherapy against well-established thymoma using adoptively transferred transgene IL-6-engineered dendritic cell-stimulated CD8(+) T-cells with prolonged survival and enhanced cytotoxicity.
    J Gene Med. 17 (8-9): 153-60.
  20. Abiko K et al. (2015) IFN-γ from lymphocytes induces PD-L1 expression and promotes progression of ovarian cancer.
    Br J Cancer. 112 (9): 1501-9.
  21. Phan-Lai, V. et al. (2016) The Antitumor Efficacy of IL2/IL21-Cultured Polyfunctional Neu-Specific T Cells Is TNFα/IL17 Dependent.
    Clin Cancer Res. 22 (9): 2207-16.
  22. Kajiwara, T. et al. (2016) Hypoxia augments MHC class I antigen presentation via facilitation of ERO1-α-mediated oxidative folding in murine tumor cells.
    Eur J Immunol. 46 (12): 2842-51.
  23. Srivastava, A.K. et al. (2016) Co-transplantation of syngeneic mesenchymal stem cells improves survival of allogeneic glial-restricted precursors in mouse brain.
    Exp Neurol. 275 Pt 1: 154-61.
  24. Meier, R.P. et al. (2014) Survival of free and encapsulated human and rat islet xenografts transplanted into the mouse bone marrow.
    PLoS One. 9 (3): e91268.
  25. Groh, J. et al. (2021) Immune modulation attenuates infantile neuronal ceroid lipofuscinosis in mice before and after disease onset
    Brain Communications. 3(2): fcab047.
  26. Cecil, D.L. et al. (2022) COX-2 inhibitors decrease expression of PD-L1 in colon tumors and increase the influx of Type I tumor infiltrating lymphocytes.
    Cancer Prev Res (Phila). canprevres.0227.2021.
  27. Karikari, A.A. et al. (2022) Neurodegeneration by α-synuclein-specific T cells in AAV-A53T-α-synuclein Parkinson's disease mice.
    Brain Behav Immun. 101: 194-210.
  28. Badr, M. et al. (2022) Expansion of regulatory T cells by CD28 superagonistic antibodies attenuates neurodegeneration in A53T-α-synuclein Parkinson's disease mice.
    J Neuroinflammation. 19 (1): 319.
  29. McFleder, R.L. et al. (2023) Brain-to-gut trafficking of alpha-synuclein by CD11c(+) cells in a mouse model of Parkinson's disease.
    Nat Commun. 14 (1): 7529.
  30. Aloui, A. et al. (2023) AFM1 Exposure in Male Balb/c Mice and Intervention Strategies Against Its Immuno-physiological toxicity using Clay Mineral and Lactic Acid Bacteria Alone or in Combination.
    Immunopharmacol Immunotoxicol. : 1-32.
  31. Aringer, I. et al. (2021) Agonism of Prostaglandin E2 Receptor 4 Ameliorates Tubulointerstitial Injury in Nephrotoxic Serum Nephritis in Mice.
    J Clin Med. 10 (4) :832.

Flow Cytometry

Immunohistology - Frozen

Immunohistology - Paraffin

Entrez Gene
GO Terms
GO:0002456 T cell mediated immunity
GO:0016021 integral to membrane
GO:0007166 cell surface receptor linked signaling pathway
GO:0009897 external side of plasma membrane
GO:0042803 protein homodimerization activity
GO:0045065 cytotoxic T cell differentiation
GO:0050850 positive regulation of calcium-mediated signaling


154579 1703


166949 1607 154578

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