• Product nameAnti-CD20 antibody
    See all CD20 primary antibodies
  • Description
    Rabbit polyclonal to CD20
  • Specificityab27093 recognises CD20.
  • Tested applicationsSuitable for: IHC-Fr, WB, IP, IHC-Pmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    A synthetic peptide from C terminus of human CD20.

  • Positive control
    • BJAB WCL and tonsil.



Our Abpromise guarantee covers the use of ab27093 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. PubMed: 19139298
WB Use at an assay dependent concentration. Predicted molecular weight: 33 kDa.
IP Use at an assay dependent concentration.
IHC-P 1/300. Antigen retrieval is not essential but may optimise staining.


  • FunctionThis protein may be involved in the regulation of B-cell activation and proliferation.
  • Tissue specificityExpressed on B-cells.
  • Involvement in diseaseDefects in MS4A1 are the cause of immunodeficiency common variable type 5 (CVID5) [MIM:613495]; also called antibody deficiency due to CD20 defect. CVID5 is a primary immunodeficiency characterized by antibody deficiency, hypogammaglobulinemia, recurrent bacterial infections and an inability to mount an antibody response to antigen. The defect results from a failure of B-cell differentiation and impaired secretion of immunoglobulins; the numbers of circulating B cells is usually in the normal range, but can be low.
  • Sequence similaritiesBelongs to the MS4A family.
  • Post-translational
    Phosphorylated. Might be functionally regulated by protein kinase(s).
  • Cellular localizationMembrane.
  • Information by UniProt
  • Database links
  • Alternative names
    • APY antibody
    • ATOPY antibody
    • B lymphocyte antigen CD20 antibody
    • B Lymphocyte Cell Surface Antigen B1 antibody
    • B-lymphocyte antigen CD20 antibody
    • B-lymphocyte cell-surface antigen B1 antibody
    • B-lymphocyte surface antigen B1 antibody
    • B1 antibody
    • Bp 35 antibody
    • Bp35 antibody
    • CD 20 antibody
    • CD20 antibody
    • CD20 antigen antibody
    • CD20 receptor antibody
    • CD20_HUMAN antibody
    • CVID5 antibody
    • Fc epsilon receptor I beta chain antibody
    • Fc Fragment of IgE high affinity I receptor for beta polypeptide antibody
    • FCER1B antibody
    • High affinity immunoglobulin epsilon receptor subunit beta antibody
    • IgE Fc receptor subunit beta antibody
    • IGEL antibody
    • IGER antibody
    • IGHER antibody
    • LEU 16 antibody
    • LEU16 antibody
    • leukocyte surface antigen Leu 16 antibody
    • Leukocyte surface antigen Leu-16 antibody
    • Ly44 antibody
    • Membrane spanning 4 domains A1 antibody
    • Membrane spanning 4 domains subfamily A member 2 antibody
    • Membrane-spanning 4-domains subfamily A member 1 antibody
    • MS4A1 antibody
    • MS4A2 antibody
    • S7 antibody
    see all

Anti-CD20 antibody images

  • Formalin fixed, paraffin embedded human tonsil tissue slide stained with anti CD20 antibody (ab27093).
  • Anti-CD20 antibody (ab27093) at 1/25 dilution + Raji cell lysate

    Predicted band size : 33 kDa
    Observed band size : 35 kDa (why is the actual band size different from the predicted?)

References for Anti-CD20 antibody (ab27093)

This product has been referenced in:
  • Bojarczuk K  et al. B-cell receptor pathway inhibitors affect CD20 levels and impair antitumor activity of anti-CD20 monoclonal antibodies. Leukemia N/A:N/A (2014). Human . Read more (PubMed: 24492323) »
  • Connick E  et al. Compartmentalization of simian immunodeficiency virus replication within secondary lymphoid tissues of rhesus macaques is linked to disease stage and inversely related to localization of virus-specific CTL. J Immunol 193:5613-25 (2014). Read more (PubMed: 25362178) »

See all 3 Publications for this product

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