CD25 antibody | K231.3B2

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Mouse anti Pig CD25

Product Type
Monoclonal Antibody
Product Code Applications Pack Size List Price Quantity
0.1 mg loader

Mouse anti Pig CD25, clone K231.3B2 recognizes porcine CD25, the alpha chain of the interleukin 2 receptor (IL-2Rα), also known as the low affinity Interleukin 2 receptor. The IL-2 receptor exists in three forms, the high affinity heterodimer, the intermediate affinity β monomer and the low affinity α monomer configurations. Clone K231.3B2 was clustered as CD25 at the First International Workshop to Define Swine Cluster of Differentiation (CD) Antigens (Lunney et al. 1994).

Mouse anti pig CD25, clone K231.3B2 immunoprecipitates a protein of ~65-70 kDa from activated lymphocyte preparations (Bailey et al. 1992).

CD25 is a 270 amino acid single pass type I transmembrane glycoprotein containing 2 Sushi domains. Low expression of CD25 is seen on resting peripheral blood mononuclear cells, rapidly up-regulated following stimulation by concanavalin A and phorbol myristate acetate, indicative of its role as an activation antigen (Bullido et al. 1999).

Product Details

Target Species
Product Form
Purified IgG - liquid
Purified IgG prepared by affinity chromatography on Protein A from tissue culture supernatant
Buffer Solution
Phosphate buffered saline
Preservative Stabilisers
0.09% Sodium Azide (NaN3)
Carrier Free
Con A activated porcine peripheral blood lymphocytes.
Approx. Protein Concentrations
IgG concentration 1.0 mg/ml
Fusion Partners
Spleen cells from immunised mice were fused with cells of the mouse P3-X63-Ag.8.653 myeloma cell line.

Storage Information

Store at +4oC or at -20oC if preferred.
Storage in frost-free freezers is not recommended.
This product should be stored undiluted. Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use.
18 months from date of despatch

More Information

O02733 Related reagents
Entrez Gene
IL2RA Related reagents
GO Terms
GO:0016021 integral to membrane
GO:0004872 receptor activity
For research purposes only

Applications of CD25 antibody

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application Name Verified Min Dilution Max Dilution
Flow Cytometry 1/25 1/200
Immunohistology - Frozen
Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own system using appropriate negative/positive controls.
Flow Cytometry
Use 10ul of the suggested working dilution to label 1x106 cells in 100ul

Secondary Antibodies Available

Description Product Code Applications Pack Size List Price Quantity
Goat anti Mouse IgG (H/L):Alk. Phos. (Multi Species Adsorbed) STAR117A E WB 0.5 mg loader
Goat anti Mouse IgG (H/L):DyLight®488 (Multi Species Adsorbed) STAR117D488GA F IF 0.1 mg loader
Goat anti Mouse IgG (H/L):DyLight®680 (Multi Species Adsorbed) STAR117D680GA F WB 0.1 mg loader
Goat anti Mouse IgG (H/L):DyLight®800 (Multi Species Adsorbed) STAR117D800GA F IF WB 0.1 mg loader
Goat anti Mouse IgG (H/L):FITC (Multi Species Adsorbed) STAR117F F 0.5 mg loader
Goat anti Mouse IgG (H/L):HRP (Multi Species Adsorbed) STAR117P E WB 0.5 mg loader
Goat anti Mouse IgG (Fc):FITC STAR120F C F 1 mg loader
Goat anti Mouse IgG (Fc):HRP STAR120P E WB 1 mg loader
Rabbit F(ab')2 anti Mouse IgG:RPE STAR12A F 1 ml loader
Rabbit F(ab')2 anti Mouse IgG:HRP (Human Adsorbed) STAR13B C E P RE WB 1 mg loader
Goat anti Mouse IgG:FITC (Rat Adsorbed) STAR70 F 0.5 mg loader
Goat anti Mouse IgG:RPE (Rat Adsorbed) STAR76 F 1 ml loader
Goat anti Mouse IgG:HRP (Rat Adsorbed) STAR77 C E P 0.5 mg loader
Goat anti Mouse IgG/A/M:Alk. Phos. STAR87A C E WB 1 mg loader
Goat anti Mouse IgG/A/M:HRP (Human Adsorbed) STAR87P E 1 mg loader
Rabbit F(ab')2 anti Mouse IgG:Dylight®800 STAR8D800GA F IF WB 0.1 mg loader
Rabbit F(ab')2 anti Mouse IgG:FITC STAR9B F 1 mg loader

Negative Isotype Controls Available

Description Product Code Applications Pack Size List Price Quantity
Mouse IgG1 Negative Control MCA928 F 100 Tests loader

Useful Reagents Available

Description Product Code Applications Pack Size List Price Quantity
Mouse anti Pig CD14:FITC MCA1218F F 0.1 mg loader
Mouse anti Pig CD45:Alexa Fluor® 647 MCA1222A647 F 100 Tests/1ml loader
Mouse anti Pig wCD8 Alpha:FITC MCA1223F F 0.1 mg loader
Mouse anti Pig wCD8 Alpha:RPE MCA1223PE F 100 Tests loader
Mouse anti Pig CD4 Alpha:FITC MCA1749F F 0.1 mg loader
Mouse anti Pig CD4 Alpha:RPE MCA1749PE F 100 Tests loader

Application Based External Images


Product Specific References

References for CD25 antibody

  1. Bailey, M. et al. (1992) A monoclonal antibody recognising an epitope associated with pig interleukin-2 receptors.
    J Immunol Methods. 153 (1-2): 85-91.
  2. Silva-Campa, E. et al. (2010) European genotype of porcine reproductive and respiratory syndrome (PRRSV) infects monocyte-derived dendritic cells but does not induce Treg cells.
    Virology. 396 (2): 264-71.
  3. Kick, A.R. et al. (2011) Evaluation of peripheral lymphocytes after weaning and vaccination for Mycoplasma hyopneumoniae.
    Res Vet Sci. 91 (3): e68-72.
  4. Silva-Campa, E. et al. (2009) Induction of T helper 3 regulatory cells by dendritic cells infected with porcine reproductive and respiratory syndrome virus.
    Virology. 387: 373-9.
  5. Leroith, T. et al. (2011) A modified live PRRSV vaccine and the pathogenic parent strain induce regulatory T cells in pigs naturally infected with Mycoplasma hyopneumoniae.
    Vet Immunol Immunopathol.140: 312-6.
  6. Barker, E. et al. (2006) The larynx as an immunological organ: immunological architecture in the pig as a large animal model.
    Clin Exp Immunol. 143: 6-14.
  7. Kuo, Y.R. et al. (2011) Prolongation of composite tissue allotransplant survival by treatment with bone marrow mesenchymal stem cells is correlated with T-cell regulation in a swine hind-limb model.
    Plast Reconstr Surg. 127: 569-79.
  8. Young, D. et al. (2012) Soy-derived di- and tripeptides alleviate colon and ileum inflammation in pigs with dextran sodium sulfate-induced colitis.
    J Nutr. 142: 363-8.
  9. Chattha, K.S. et al. (2013) Divergent immunomodulating effects of probiotics on T cell responses to oral attenuated human rotavirus vaccine and virulent human rotavirus infection in a neonatal gnotobiotic piglet disease model.
    J Immunol. 191: 2446-56.
  10. Fan, B. et al. (2015) The 15N and 46R Residues of Highly Pathogenic Porcine Reproductive and Respiratory Syndrome Virus Nucleocapsid Protein Enhance Regulatory T Lymphocytes Proliferation.
    PLoS One. 10 (9): e0138772.
  11. Williams, A.R. et al. (2016) Polymerization-dependent activation of porcine γδ T-cells by proanthocyanidins
    Res Vet Sci. 105: 209-215.
  12. Suradhat, S. et al. (2016) Transdermal delivery of plasmid encoding truncated nucleocapsid protein enhanced PRRSV-specific immune responses.
    Vaccine. 34 (5): 609-15.
  13. Pan, H. et al. (2016) Lymphodepletive effects of rabbit anti-pig thymocyte globulin in neonatal swines.
    Transpl Immunol. Aug 22. pii: S0966-3274(16)30082-X. [Epub ahead of print]
  14. Ferrari, L. et al. (2016) Phenotypic modulation of porcine CD14+ monocytes, natural killer/natural killer T cells and CD8αβ+ T cell subsets by an antibody-derived killer peptide (KP)
    Res Vet Sci. 109: 29-39.
  15. Sirisereewan, C. et al. (2017) Positive immunomodulatory effects of heterologous DNA vaccine- modified live vaccine, prime-boost immunization, against the highly-pathogenic PRRSV infection.
    Vet Immunol Immunopathol. 183: 7-15.
  16. Singleton, H. et al. (2016) Establishing Porcine Monocyte-Derived Macrophage and Dendritic Cell Systems for Studying the Interaction with PRRSV-1.
    Front Microbiol. 7: 832.

Further Reading

  1. Piriou-Guzylack, L. (2008) Membrane markers of the immune cells in swine: an update.
    Vet Res. 39: 54.
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