• Product nameAnti-CD40 antibody
    See all CD40 primary antibodies
  • Description
    Rabbit polyclonal to CD40
  • Specificityab87233 recognizes isoform 2.
  • Tested applicationsSuitable for: WBmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Rabbit, Guinea pig
  • Immunogen

    Synthetic peptide corresponding to a region within the N terminal amino acids 36-85 (QCCSLCQPGQ KLVSDCTEFT ETECLPCGES EFLDTWNRET HCHQHKYCDP) of human CD40 (NP_690593).

  • Positive control
    • Human fetal thymus lysate



Our Abpromise guarantee covers the use of ab87233 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 a concentration of 1 µg/ml. Predicted molecular weight: 20 kDa. Good results were obtained when blocked with 5% non-fat dry milk in 0.05% PBS-T.


  • FunctionReceptor for TNFSF5/CD40LG.
  • Tissue specificityB-cells and in primary carcinomas.
  • Involvement in diseaseDefects in CD40 are the cause of hyper-IgM immunodeficiency syndrome type 3 (HIGM3) [MIM:606843]; also known as hyper-IgM syndrome 3. HIGM3 is an autosomal recessive disorder which includes an inability of B cells to undergo isotype switching, one of the final differentiation steps in the humoral immune system, an inability to mount an antibody-specific immune response, and a lack of germinal center formation.
  • Sequence similaritiesContains 4 TNFR-Cys repeats.
  • Cellular localizationSecreted and Cell membrane.
  • Information by UniProt
  • Database links
  • Alternative names
    • AI326936 antibody
    • B cell associated molecule CD40 antibody
    • B cell surface antigen CD40 antibody
    • B cell-associated molecule antibody
    • B-cell surface antigen CD40 antibody
    • Bp50 antibody
    • CD 40 antibody
    • CD40 antibody
    • CD40 antigen (TNF receptor superfamily member 5) antibody
    • CD40 antigen antibody
    • CD40 molecule antibody
    • CD40 molecule, TNF receptor superfamily member 5 antibody
    • CD40 protein antibody
    • CD40 type II isoform antibody
    • CD40L receptor antibody
    • CDw40 antibody
    • GP39 antibody
    • HIGM1 antibody
    • IGM antibody
    • IMD3 antibody
    • MGC9013 antibody
    • Nerve growth factor receptor related B lymphocyte activation molecule antibody
    • OTTHUMP00000031699 antibody
    • OTTHUMP00000031700 antibody
    • p50 antibody
    • T-BAM antibody
    • TBAM antibody
    • TNF receptor superfamily member 5 antibody
    • TNFRSF5 antibody
    • TNR5_HUMAN antibody
    • TRAP antibody
    • Tumor necrosis factor receptor superfamily , member 5 antibody
    • Tumor necrosis factor receptor superfamily member 5 antibody
    • Tumor necrosis factor receptor superfamily member 5 precursor antibody
    • Tumor necrosis factor receptor superfamily, member 5, isoform CRA_a antibody
    see all

Anti-CD40 antibody images

  • Anti-CD40 antibody (ab87233) at 1 µg/ml + human fetal thymus lysate at 10 µg

    HRP conjugated anti-Rabbit IgG at 1/50000 dilution

    Predicted band size : 20 kDa
    Observed band size : ~20 kDa (why is the actual band size different from the predicted?)

References for Anti-CD40 antibody (ab87233)

ab87233 has not yet been referenced specifically in any publications.

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