CD4 antibody | CA13.1E4

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Mouse anti Dog CD4

Product Type
Monoclonal Antibody
Product Code Applications Pack Size List Price Quantity
2 ml loader

Mouse anti Dog CD4 antibody (CA13.1E4), a monoclonal antibody specific for canine CD4. CA13.1E4 was clustered at the first Canine Leukocyte Antigen Workshop (Claw) [Cobbold et al. 1992 ] and identifies, by immunoprecipitation a ~60 kDa monomeric protein under both reducing and non-reducing conditions. Canine CD4 is a surface glycoprotein expressed by non CD8 expressing T lymphocytes, with similar developmental and functional characteristics to T helper cells described in other mammalian species. Mouse anti Dog CD4 also recognizes a population of CD8 positive cells in the canine thymus (Moore et al. 1992).

CD4 expression has also been reported on a population of CD3 positive peripheral blood T lymphocytes which are double positive for CD4 and CD8 (Bismarck et al. 2012 ). Similar reports have been made for cynomolgus monkey (Nam et al. 2000), pig (Saalmuller et al. 1987 , Pescowitz et al. 1990) as well as rat, chicken and human (reviewed Zuckermann 1999 ).

Uniquely amongst mammalian species clone CA13.1E4 also recognizes CD4 expressed on canine neutrophils at a similar density to that expressed on canine T helper cells. The functional significance of this is not understood and remains enigmatic in view of the roles described for CD4 in canine and other mammalian species (Moore et al. 1992).

Clone CA13.1E4 also demonstrates immunohistological staining of splenic marginal zone macrophages (Moore et al. 1992). Other macrophage populations, such as splenic red pulp macrophages and Langerhans cells do not stain with clone CA13.1E4. Canine CD4 positive T cells can be further characterized according to their simultaneous expression of CD45RA as recognized by Rat anti Canine anti CD45RA clone CA4.1D3 in a manner analogous to that seen with human T cells (Moore et al. 1992).

Clone CA13.1E4 has been used amongst a large panel of anti-canine monoclonal antibodies for the study of various lymphoproliferative diseases. T lymphocytes in large granular lymphocyte (LGL) lymphocytosis are negative for CD4 (McDonough and Moore 2000 ). Dogs with chronic myelogenous leukemia demonstrate CD4 positive staining on neutrophils (Tarrant et al. 2001). CD4 expression varies considerably between various canine leukemias.

Product Details

Target Species
Product Form
Tissue Culture Supernatant - liquid
Preservative Stabilisers
0.1%Sodium Azide
Canine Thymocytes
Fusion Partners
Spleen cells from immunised Balb/c mice were fused with cells of the P3X63-Ag.653 mouse myeloma cell line.

Storage Information

This product is shipped at ambient temperature. It is recommended to aliquot and store at -20°C on receipt. When thawed, aliquot the sample as needed. Keep aliquots at 2-8°C for short term use (up to 4 weeks) and store the remaining aliquots at -20°C.

Avoid repeated freezing and thawing as this may denature the antibody. Storage in frost-free freezers is not recommended.
12 months from date of despatch

More Information

Entrez Gene
GO Terms
GO:0007155 cell adhesion
GO:0016021 integral to membrane
GO:0006955 immune response
GO:0045058 T cell selection
For research purposes only

Applications of CD4 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 Neat
Immunohistology - Frozen
Where this antibody 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 antibody for use in their own system using appropriate negative/positive controls.
Flow Cytometry
Use 25ul of the suggested working dilution to label 106 cells or 100ul whole blood.
Histology Positive Control Tissue
Spleen, lymph node

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®550 (Multi Species Adsorbed) STAR117D550 F IF WB 0.1 mg loader
Goat anti Mouse IgG (H/L):DyLight®650 (Multi Species Adsorbed) STAR117D650 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 C 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

Product Specific References

References for CD4 antibody

  1. Moore, P.F. et al. (1992) Monoclonal antibodies specific for canine CD4 and CD8 define functional T-lymphocyte subsets and high-density expression of CD4 by canine neutrophils.
    Tissue Antigens 40(2): 75-85.
  2. Cobbold, S. & Metcalfe, S. (1994) Monoclonal antibodies that define canine homologues of human CD antigens: summary of the First International Canine Leukocyte Antigen Workshop (CLAW).
    Tissue Antigens. 43 (3): 137-54.
  3. Veenhof, E.Z. et al. (2011) Characterisation of T cell phenotypes, cytokines and transcription factors in the skin of dogs with cutaneous adverse food reactions.
    Vet J. 187 (3): 320-4.
  4. Izci C et al. (2015) Clinical and light microscopic studies of the conjunctival tissues of dogs with bilateral keratoconjunctivitis sicca before and after treatment with topical 2% cyclosporine.
    Biotech Histochem. 90 (3): 223-30.
  5. Ricklin, M.E. et al. (2010) Characterization of canine dendritic cells in healthy, atopic, and non-allergic inflamed skin.
    J Clin Immunol. 30 (6): 845-54.
  6. Wijewardana, V. et al. (2013) Production of canine soluble CD40 ligand to induce maturation of monocyte derived dendritic cells for cancer immunotherapy.
    Vet Immunol Immunopathol. 156 (1-2): 121-7.
  7. Kamiie, J. et al. (2014) Quantitative analysis of CD3ε in a cloned canine lymphoma cell line by selected reaction monitoring assay.
    Biosci Biotechnol Biochem. 78 (2): 271-5.
  8. Heinrich, F. et al. (2015) Immunophenotyping of immune cell populations in the raccoon (Procyon lotor).
    Vet Immunol Immunopathol. 168 (3-4): 140-6.
  9. Yuasa, K. et al. (2007) Injection of a recombinant AAV serotype 2 into canine skeletal muscles evokes strong immune responses against transgene products.
    Gene Ther. 14 (17): 1249-60.
  10. Lin Shiow-Chen et al. (2014) Immune Characterization of Peripheral Blood Mononuclear cells of the Dogs Restored from Innoculation of Canine Transmissible Venereal Tumor Cells.
    Tai Vet J. 40 (04): 181-190.
  11. Constantinoiu, C.C. et al. (2015) Mucosal tolerance of the hookworm Ancylostoma caninum in the gut of naturally infected wild dogs.
    Parasite Immunol. Jul 27 [Epub ahead of print].
  12. Lin, C.S. et al. (2018) Activating natural killer (NK) cytotoxicity of canine CD5-CD21- cells requires low surface CD5 density NK cells.
    Iran J Vet Res. 19 (2): 87-95.

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