• Product nameAnti-CD8 antibody [14]
    See all CD8 primary antibodies
  • Description
    Mouse monoclonal [14] to CD8
  • SpecificitySpecific to CD8. 14 can be used for: the detection of immunoregulatory T cell subset imbalances in autoimmune disorders and immunodeficiency states, categorisation of T cell acute lymphoblastic leukaemia and lymphoblastic lymphoma in conjunction with other antigens and determination of T4/T8 ratios in immune deficiencies, rheumatoid arthritis, multiple sclerosis, etc.
  • Tested applicationsSuitable for: IHC-Fr, IHC-Pmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Fibronectin purified monocytes.



Our Abpromise guarantee covers the use of ab20133 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

Application Abreviews Notes
IHC-Fr Use at an assay dependent concentration.
IHC-P 1/60. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol. PubMed: 24594640


  • FunctionIdentifies cytotoxic/suppressor T-cells that interact with MHC class I bearing targets. CD8 is thought to play a role in the process of T-cell mediated killing. CD8 alpha chains binds to class I MHC molecules alpha-3 domains.
  • Involvement in diseaseDefects in CD8A are a cause of familial CD8 deficiency (CD8 deficiency) [MIM:608957]. Familial CD8 deficiency is a novel autosomal recessive immunologic defect characterized by absence of CD8+ cells, leading to recurrent bacterial infections.
  • Sequence similaritiesContains 1 Ig-like V-type (immunoglobulin-like) domain.
  • Post-translational
    All of the five most C-terminal cysteines form inter-chain disulfide bonds in dimers and higher multimers, while the four N-terminal cysteines do not.
  • Cellular localizationSecreted and Cell membrane.
  • Information by UniProt
  • Database links
  • FormCD8 beta tissue specificity: Isoform 1, isoform 3, isoform 5, isoform 6, isoform 7 and isoform 8 are expressed in both thymus and peripheral CD8+ T-cells. Expression of isoform 1 is higher in thymus CD8+ T-cells than in peripheral CD8+ T-cells. Expression of isoform 6 is higher in peripheral CD8+ T-cells than in thymus CD8+ T-cells. CD8 beta PTM: Phosphorylated as a consequence of T-cell activation.
  • Alternative names
    • CD8 antibody
    • CD8 antigen, alpha polypeptide (p32) antibody
    • CD8a antibody
    • CD8a antigen antibody
    • CD8a molecule antibody
    • CD8A_HUMAN antibody
    • Leu2 antibody
    • Leu2 T lymphocyte antigen antibody
    • MAL antibody
    • OKT8 T cell antigen antibody
    • p32 antibody
    • T cell antigen Leu2 antibody
    • T cell co receptor antibody
    • T-cell surface glycoprotein CD8 alpha chain antibody
    • T-lymphocyte differentiation antigen T8/Leu-2 antibody
    • T8 T cell antigen antibody
    see all

References for Anti-CD8 antibody [14] (ab20133)

This product has been referenced in:
  • Xiao F  et al. Ex vivo expanded human regulatory T cells delay islet allograft rejection via inhibiting islet-derived monocyte chemoattractant protein-1 production in CD34+ stem cells-reconstituted NOD-scid IL2r?null mice. PLoS One 9:e90387 (2014). IHC-P . Read more (PubMed: 24594640) »
  • Hogg N  et al. A novel leukocyte adhesion deficiency caused by expressed but nonfunctional beta2 integrins Mac-1 and LFA-1. J Clin Invest 103:97-106 (1999). Read more (PubMed: 9884339) »

See all 2 Publications for this product

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