Date published: 2026-4-25

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CD8-β Antibody (F-5): sc-25277

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Datasheets
  • CD8-β Antibody (F-5) is a mouse monoclonal IgG2a κ CD8-β antibody, cited in 6 publications, provided at 200 µg/ml
  • CD8-beta Antibody (F-5) is recommended for detection of CD8-β chain of human origin by WB, IP, IF, IHC(P) and ELISA
  • CD8-beta Antibody (F-5) is available conjugated to agarose for IP; HRP for WB, IHC(P) and ELISA; and to either phycoerythrin or FITC for IF, IHC(P) and FCM
  • also available conjugated to Alexa Fluor® 488, Alexa Fluor® 546, Alexa Fluor® 594 or Alexa Fluor® 647 for WB (RGB), IF, IHC(P) and FCM, and for use with RGB fluorescent imaging systems, such as iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • also available conjugated to Alexa Fluor® 680 or Alexa Fluor® 790 for WB (NIR), IF and FCM; for use with Near-Infrared (NIR) detection systems, such as LI-COR®Odyssey®, iBright™ FL1000, FluorChem™, Typhoon, Azure and other comparable systems
  • m-IgG Fc BP-HRP is the preferred secondary detection reagent for CD8-β Antibody (F-5) for WB and IHC(P) applications. This reagent is now offered in a bundle with CD8-β Antibody (F-5) (see ordering information below).
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CD8-β Antibody (F-5) is a mouse monoclonal IgG2a kappa light chain antibody that detects CD8-beta protein of human origin by western blotting (WB), immunoprecipitation (IP), immunofluorescence (IF), immunohistochemistry with paraffin-embedded sections (IHCP), and enzyme-linked immunosorbent assay (ELISA). CD8-β (F-5) antibody is available in both non-conjugated and various conjugated forms, including agarose, horseradish peroxidase (HRP), phycoerythrin (PE), fluorescein isothiocyanate (FITC), and multiple Alexa Fluor® conjugates. CD8-beta protein plays a crucial role in immune response, primarily by acting as a co-receptor that enhances interaction between T cell receptors and class I major histocompatibility complex (MHC) molecules on antigen-presenting cells. This interaction is vital for cytotoxic T cell activation, which is essential for eliminating infected or malignant cells. CD8 presence on T cytotoxic cells not only aids in recognizing and responding to pathogens but also contributes to immune memory maintenance, allowing for rapid response upon re-exposure to the same antigen. Understanding CD8-beta function is important for developing immunotherapies and vaccines, particularly in viral infections and cancer, where effective T cell responses are critical for controlling disease progression.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences

CD8-β Antibody (F-5) References:

  1. Heterogeneous immunophenotype of granular lymphocyte expansions: differential expression of the CD8 alpha and CD8 beta chains.  |  de Totero, D., et al. 1992. Blood. 80: 1765-73. PMID: 1391944
  2. The T cell receptor as a multicomponent signalling machine: CD4/CD8 coreceptors and CD45 in T cell activation.  |  Janeway, CA. 1992. Annu Rev Immunol. 10: 645-74. PMID: 1534242
  3. The immunobiology of T cells with invariant gamma delta antigen receptors.  |  Allison, JP. and Havran, WL. 1991. Annu Rev Immunol. 9: 679-705. PMID: 1832874
  4. CD4 and CD8 act as co-receptors during thymic selection of the T cell repertoire.  |  Zúñiga-Pflücker, JC., et al. 1991. Semin Immunol. 3: 167-75. PMID: 1909594
  5. CD4 and CD8 recognition of class II and class I molecules of the major histocompatibility complex.  |  Fleury, SG., et al. 1991. Semin Immunol. 3: 177-85. PMID: 1909595
  6. Structure and expression of the gene encoding CD8 alpha chain (Leu-2/T8).  |  Nakayama, K., et al. 1989. Immunogenetics. 30: 393-7. PMID: 2509342
  7. CD8 modulation of T-cell antigen receptor-ligand interactions on living cytotoxic T lymphocytes.  |  Luescher, IF., et al. 1995. Nature. 373: 353-6. PMID: 7830771
  8. HIV-specific CD8+ T-cell immune responses and viral replication.  |  Buseyne, F. and Rivière, Y. 1993. AIDS. 7 Suppl 2: S81-5. PMID: 7909230
  9. Reduced thymic maturation but normal effector function of CD8+ T cells in CD8 beta gene-targeted mice.  |  Fung-Leung, WP., et al. 1994. J Exp Med. 180: 959-67. PMID: 8064243
  10. T cell receptor interaction with peptide/major histocompatibility complex (MHC) and superantigen/MHC ligands is dominated by antigen.  |  Ehrich, EW., et al. 1993. J Exp Med. 178: 713-22. PMID: 8393480
  11. Distinct roles for CD4 and CD8 as co-receptors in antigen receptor signalling.  |  Julius, M., et al. 1993. Immunol Today. 14: 177-83. PMID: 8499078
  12. Down-modulation of CD8 beta-chain in response to an altered peptide ligand enables developing thymocytes to escape negative selection.  |  Barnden, MJ., et al. 1997. Cell Immunol. 175: 111-9. PMID: 9023416

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

CD8-β Antibody (F-5)

sc-25277
200 µg/ml
$322.00

CD8-β Antibody (F-5): m-IgG Fc BP-HRP Bundle

sc-525515
200 µg Ab; 10 µg BP
$361.00

CD8-β Antibody (F-5) AC

sc-25277 AC
500 µg/ml, 25% agarose
$424.00

CD8-β Antibody (F-5) HRP

sc-25277 HRP
200 µg/ml
$322.00

CD8-β Antibody (F-5) FITC

sc-25277 FITC
200 µg/ml
$336.00

CD8-β Antibody (F-5) PE

sc-25277 PE
200 µg/ml
$349.00

CD8-β Antibody (F-5) Alexa Fluor® 488

sc-25277 AF488
200 µg/ml
$364.00

CD8-β Antibody (F-5) Alexa Fluor® 546

sc-25277 AF546
200 µg/ml
$364.00

CD8-β Antibody (F-5) Alexa Fluor® 594

sc-25277 AF594
200 µg/ml
$364.00

CD8-β Antibody (F-5) Alexa Fluor® 647

sc-25277 AF647
200 µg/ml
$364.00

CD8-β Antibody (F-5) Alexa Fluor® 680

sc-25277 AF680
200 µg/ml
$364.00

CD8-β Antibody (F-5) Alexa Fluor® 790

sc-25277 AF790
200 µg/ml
$364.00

I am using CD8-β (F-5): sc-25277 monoclonal antibody to stain paraffin embedded tissue. Do you recommend antigen retrieval when using this antibody?

Asked by: Cweed
We recommend performing antigen retrieval with sodium citrate buffer (pH 6) and heat. The full protocol can be found here: https://www.scbt.com/scbt/resources/protocols/immunoperoxidase-staining
Answered by: Technical Support
Date published: 2017-02-24
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Rated 4 out of 5 by from Works on Bovine TissueCD28.2 clone performs well on frozen sections of calf tracheobronchial lymph node.
Date published: 2017-02-10
Rated 5 out of 5 by from Good choice for IHC(P)This antibody does a great job of detecting CD8 beta in paraffin-embedded tissue slides. Use at 1:50 with antigen retrieval.
Date published: 2017-02-03
Rated 5 out of 5 by from Specific and SensitiveSpecific and Sensitive.We use this antibody routinely in our lab, gives a very good signal by WB
Date published: 2016-10-28
Rated 4 out of 5 by from Excellent resultsPositive band seen in WB in SUP-T1 whole cell lysate
Date published: 2016-10-28
Rated 5 out of 5 by from WonderfulWonderful results using this antibody for IP/WB and IF with human samples.
Date published: 2016-10-27
Rated 5 out of 5 by from Positive band seen in WB in SUPPositive band seen in WB in SUP-T1 whole cell lysate. -SCBT QC
Date published: 2015-04-05
Rated 5 out of 5 by from Excellent immunoperoxidase membrane and cytoplasmicExcellent immunoperoxidase membrane and cytoplasmic staining in formalin fixed, paraffin-embedded human spleen tissue. -SCBT QC
Date published: 2015-02-03
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CD8-β Antibody (F-5) is rated 4.7 out of 5 by 7.
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