Anti-CD8 antibody [143-44], prediluted (CF405M) (ab123630)


  • Product nameAnti-CD8 antibody [143-44], prediluted (CF405M)
    See all CD8 primary antibodies
  • Description
    Mouse monoclonal [143-44] to CD8, prediluted (CF405M)
  • ConjugationCF405M. Ex: 408nm, Em: 452nm
  • Tested applicationsSuitable for: ICC/IF, Flow Cytmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen


  • Positive control
    • Normal Human Peripheral Blood
  • General notes

    ab123630 is directed against the CD8-antigen (T8-antigen), which is expressed on Human T lymphocytes. ab123630 reacts with 20-30% of Human peripheral T lymphocytes. ab123630 reacts with T lymphocytes with suppressor-cell activity in pokeweed mitogen- stimulated immunoglobulin production, as was shown in separation experiments (i.e. "panning").

    CF405M (Abs/Em Max: 408/450nm). Direct replacement for Pacific Blue dye®, BD Horizon™ V450.



Our Abpromise guarantee covers the use of ab123630 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
ICC/IF Use at an assay dependent concentration.
Flow Cyt Use 5µl for 106 cells. ab126026-Mouse monoclonal IgG1, is suitable for use as an isotype control with this antibody.


  • 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

Anti-CD8 antibody [143-44], prediluted (CF405M) images

  • Flow cytometry analysis of CD8 expression in Normal Peripheral Blood from a Human Donor using ab123630 at 5 µl/106 cells.

References for Anti-CD8 antibody [143-44], prediluted (CF405M) (ab123630)

ab123630 has not yet been referenced specifically in any publications.

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