Recombinant Anti-B7H4 antibody [EPR20236] (Alexa Fluor® 488) (ab225487)


  • Product name

    Anti-B7H4 antibody [EPR20236] (Alexa Fluor® 488)
    See all B7H4 primary antibodies
  • Description

    Rabbit monoclonal [EPR20236] to B7H4 (Alexa Fluor® 488)
  • Host species

  • Conjugation

    Alexa Fluor® 488. Ex: 495nm, Em: 519nm
  • Tested applications

    Suitable for: IHC-Pmore details
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Recombinant fragment within Human B7H4 aa 1 to the C-terminus. The exact sequence is proprietary.
    Database link: Q7Z7D3

  • Positive control

    • IHC-P: human breast cancer tissue sections
  • General notes

    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents.

    Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The Alexa Fluor® dye included in this product is provided under an intellectual property license from Life Technologies Corporation. As this product contains the Alexa Fluor® dye, the purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). As this product contains the Alexa Fluor® dye the sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab225487 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-P 1/1000. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.


  • Function

    Negatively regulates T-cell-mediated immune response by inhibiting T-cell activation, proliferation, cytokine production and development of cytotoxicity. When expressed on the cell surface of tumor macrophages, plays an important role, together with regulatory T-cells (Treg), in the suppression of tumor-associated antigen-specific T-cell immunity. Involved in promoting epithelial cell transformation.
  • Tissue specificity

    Overexpressed in breast, ovarian, endometrial, renal cell (RCC) and non-small-cell lung cancers (NSCLC). Expressed on activated T- and B-cells, monocytes and dendritic cells, but not expressed in most normal tissues (at protein level). Widely expressed, including in kidney, liver, lung, ovary, placenta, spleen and testis.
  • Sequence similarities

    Belongs to the immunoglobulin superfamily. BTN/MOG family.
    Contains 2 Ig-like V-type (immunoglobulin-like) domains.
  • Post-translational

  • Cellular localization

    Cell membrane. Expressed at the cell surface. A soluble form has also been detected.
  • Information by UniProt
  • Database links

  • Alternative names

    • B7 family member, H4 antibody
    • B7 H4 antibody
    • B7 homolog 4 antibody
    • B7 superfamily member 1 antibody
    • B7 superfamily, member 1 antibody
    • B7-H4 antibody
    • B7h.5 antibody
    • B7h4 antibody
    • B7S1 antibody
    • B7x antibody
    • BC032925 antibody
    • Immune costimulatory protein B7-H4 antibody
    • Immune costimulatory protein B7H4 antibody
    • MGC41287 antibody
    • PRO1291 antibody
    • Protein B7S1 antibody
    • RP11 229A19.4 antibody
    • T cell costimulatory molecule B7x antibody
    • T-cell costimulatory molecule B7x antibody
    • V set domain-containing T cell activation inhibitor 1 antibody
    • V-set domain-containing T-cell activation inhibitor 1 antibody
    • VCTN1 antibody
    • Vtcn1 antibody
    • VTCN1_HUMAN antibody
    see all


  • IHC image of B7H4 staining in a section of formalin-fixed paraffin-embedded human breast cancer*.

    The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6) in a Biocare Medical NxGen pressure cooker using retrieval settings of 110oC for 20 minutes. Non-specific protein-protein interactions were then blocked in TBS containing 0.025% (v/v) Triton X-100, 0.3M (w/v) glycine and 1% (w/v) BSA for 1h at room temperature. The section was then incubated overnight at +4°C in TBS containing 0.025% (v/v) Triton X-100 and 1% (w/v) BSA with ab225487 at 1/1000 dilution (shown in green) and counterstained using ab195884, Rat monoclonal to Tubulin (Alexa Fluor® 647), at 1/250 dilution (shown in red). Nuclear DNA was labelled with DAPI (shown in blue). The section was then mounted using Fluoromount®.

    Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).

    For other IHC staining systems (automated and non-automated), customers should optimize variable parameters such as antigen retrieval conditions, antibody concentrations and incubation times.

    *Tissue obtained from the Human Research Tissue Bank, supported by the NIHR Cambridge Biomedical Research Centre.


ab225487 has not yet been referenced specifically in any publications.

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