Anti-CD20 antibody [AISB12] - Low endotoxin, Azide free (ab171203)


  • Product name
    Anti-CD20 antibody [AISB12] - Low endotoxin, Azide free
    See all CD20 primary antibodies
  • Description
    Rat monoclonal [AISB12] to CD20 - Low endotoxin, Azide free
  • Host species
  • Tested applications
    Suitable for: WB, Flow Cyt, Functional Studiesmore details
  • Species reactivity
    Reacts with: Mouse
  • Immunogen

    The details of the immunogen for this antibody are not available.

  • Positive control
    • A20 cell lysate; BALB/c splenocytes.
  • General notes

    Endotoxin Level: Less than 0.001 ng/µg antibody, as determined by the LAL assay.



Our Abpromise guarantee covers the use of ab171203 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
WB Use at an assay dependent concentration. Predicted molecular weight: 32 kDa.
Flow Cyt Use 0.25µg for 105-8 cells.

(in a final volume of 100 μL).

ab18450 - Rat monoclonal IgG2a, is suitable for use as an isotype control with this antibody.

Functional Studies Use at an assay dependent concentration.


  • Function
    This protein may be involved in the regulation of B-cell activation and proliferation.
  • Tissue specificity
    Expressed on B-cells.
  • Involvement in disease
    Defects 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 similarities
    Belongs to the MS4A family.
  • Post-translational
    Phosphorylated. Might be functionally regulated by protein kinase(s).
  • Cellular localization
  • 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
    • MGC3969 antibody
    • MS4A1 antibody
    • MS4A2 antibody
    • S7 antibody
    see all


  • All lanes : Anti-CD20 antibody [AISB12] - Low endotoxin, Azide free (ab171203)

    Lane 1 : Balb/c thymus cell lysate
    Lane 2 : A20 cell lysate

    Predicted band size: 32 kDa

  • Flow cytometric analysis of BALB/c splenocytes with Anti-Mouse CD19 Alexa Fluor® 647 and 1.0 ug ab171203 followed by Anti-Rat IgG PE. Quadrant lines represent Rat IgG2a isotype control staining levels and cells in the lymphocyte gate were used for analysis.


ab171203 has not yet been referenced specifically in any publications.

Customer reviews and Q&As

There are currently no Customer reviews or Questions for ab171203.
Please use the links above to contact us or submit feedback about this product.


Sign up