• Product name
    Anti-CD28 antibody [PV-1]
    See all CD28 primary antibodies
  • Description
    Armenian Hamster monoclonal [PV-1] to CD28
  • Host species
    Armenian hamster
  • Specificity
    ab25234 recognises Murine CD28.
  • Tested applications
    Suitable for: Functional Studies, Flow Cyt, IPmore details
  • Species reactivity
    Reacts with: Mouse
  • Immunogen

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



Our Abpromise guarantee covers the use of ab25234 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
Functional Studies Use at an assay dependent concentration. In vitro costimulation of T cells and NK cells
Flow Cyt Use at an assay dependent concentration.

In vitro costimulation of T cells and NK cells: Use at an assay dependent dilution.




ab18479 - Armenian Hamster monoclonal IgG, is suitable for use as an isotype control with this antibody.


IP Use at an assay dependent concentration.


  • Function
    Involved in T-cell activation, the induction of cell proliferation and cytokine production and promotion of T-cell survival.
  • Tissue specificity
    Expressed in T-cells and plasma cells, but not in less mature B-cells.
  • Sequence similarities
    Contains 1 Ig-like V-type (immunoglobulin-like) domain.
  • Cellular localization
  • Information by UniProt
  • Database links
  • Alternative names
    • CD 28 antibody
    • CD28 antibody
    • CD28 antigen antibody
    • CD28 molecule antibody
    • CD28_HUMAN antibody
    • MGC138290 antibody
    • T cell antigen CD28 antibody
    • T cell specific surface glycoprotein antibody
    • T cell specific surface glycoprotein CD28 antibody
    • T-cell-specific surface glycoprotein CD28 antibody
    • TP44 antibody
    see all


This product has been referenced in:
  • Meyer Zu Horste G  et al. Predicting the Response to Intravenous Immunoglobulins in an Animal Model of Chronic Neuritis. PLoS One 11:e0164099 (2016). Flow Cyt . Read more (PubMed: 27711247) »
  • Mascanfroni ID  et al. Metabolic control of type 1 regulatory T cell differentiation by AHR and HIF1-a. Nat Med 21:638-46 (2015). Read more (PubMed: 26005855) »
See all 3 Publications for this product

Customer reviews and Q&As

1-2 of 2 Abreviews or Q&A


Thank you for contacting us.

While we do not have any antibodies that are specifically tested for your purposes, I would recommend ab113628 for CD3. This antibody recognizes an extracellular epitope and gives good results in ELISA and Flow Cytometry, which are similar to your assay. For CD28, we currently have two clones that recognize extracellular epitopes and are reactive with mouse: PV-1 (ab25234) and 37.51 (ab25233). These clones are available directly conjugated to a variety of fluorophores and biotin.

If you will be purchasing more than five vials in total, my colleagues in customer services can help you determine if you are eligible for a discount when you place your order. If you will be purchasing more than 1mg of a single antibody, our bulk sales team can help prepare a quote for you: mailto:sales@abcam.com

I hope this helps, please let me know if you need any additional information or assistance.

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Thank you for contacting us. Clone PV-1 is approved for In vitro costimulation of mouse T cells and NK cells, though we do recommend using the LE/AF format when working with live cells. Product #ab83051 has been tested to ensure low endotoxin levels and is supplied in PBS, pH 7.4. I have added the lnk to ab83051 below: https://www.abcam.com/CD80-antibody-AP-M-Low-endotoxin-Azide-free-ab83051.html I hope this information is helpful to you. Please do not hesitate to contact us if you need any more advice or information.

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