Anti-CD3 epsilon antibody [EP449E] (ab52959)


  • Product nameAnti-CD3 epsilon antibody [EP449E]
    See all CD3 epsilon primary antibodies
  • Description
    Rabbit monoclonal [EP449E] to CD3 epsilon
  • Specificityab52959 reacts with CD3 epsilon. It does not cross-react with other subunits of CD3.
  • Tested applicationsSuitable for: WB, IHC-P, IP, Flow Cytmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    A synthetic peptide corresponding to residues in cytoplasmic domain of human CD3 epsilon

  • Positive control
    • Jurkat cell lysate and human spleen tissue.
  • General notes

    Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.

    Produced using Abcam's RabMAb® technology. RabMAb® technology is covered by the following U.S. Patents, No. 5, 675, 063 and/or 7, 429, 487.

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab52959 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 1/1000 - 1/10000. Detects a band of approximately 23 kDa (predicted molecular weight: 23 kDa).
IHC-P 1/250 - 1/500.
IP 1/50.
Flow Cyt 1/1000.

ab172730 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.


  • FunctionThe CD3 complex mediates signal transduction.
  • Sequence similaritiesContains 1 Ig-like (immunoglobulin-like) domain.
    Contains 1 ITAM domain.
  • Cellular localizationMembrane.
  • Information by UniProt
  • Database links
  • Alternative names
    • CD3 epsilon antibody
    • CD3e antibody
    • CD3e antigen epsilon polypeptide (TiT3 complex) antibody
    • CD3E antigen epsilon polypeptide antibody
    • CD3E antigen, epsilon subunit antibody
    • CD3e molecule epsilon antibody
    • CD3e molecule, epsilon (CD3 TCR complex) antibody
    • CD3e molecule, epsilon (CD3-TCR complex) antibody
    • CD3E_HUMAN antibody
    • IMD18 antibody
    • T cell antigen receptor complex epsilon subunit of T3 antibody
    • T cell surface antigen T3/Leu 4 epsilon chain antibody
    • T cell surface glycoprotein CD3 epsilon chain antibody
    • T-cell surface antigen T3/Leu-4 epsilon chain antibody
    • T-cell surface glycoprotein CD3 epsilon chain antibody
    • T3E antibody
    • TCRE antibody
    see all

Anti-CD3 epsilon antibody [EP449E] images

  • Human peripheral blood lymphocytes stained with ab52959 (red line). Human whole blood was processed using a modified protocol based on Chow et al, 2005 (PMID: 16080188). In brief, human whole blood was fixed in 4% formaldehyde (methanol-free) for 10 min at 22°C. Red blood cells were then lyzed by the addition of Triton X-100 (final concentration - 0.1%) for 15 min at 37°C. For experimentation, cells were treated with 50% methanol (-20°C) for 15 min at 4°C. Cells were then incubated with the antibody (ab52959, 1/1000 dilution) for 30 min at 4°C. The secondary antibody used was Alexa Fluor® 488 goat anti-rabbit IgG (H&L) (ab150077) at 1/2000 dilution for 30 min at 4°C. Isotype control antibody (black line) was rabbit IgG (monoclonal) (0.1μg/1x106 cells) used under the same conditions. Unlabelled sample (blue line) was also used as a control. Acquisition of >30,000 total events were collected using a 20mW Argon ion laser (488nm) and 525/30 bandpass filter. Gating strategy - peripheral blood lymphocytes.

  • Anti-CD3 epsilon antibody [EP449E] (ab52959) at 1/10000 dilution + Jurkat cell lysate at 10 µg

    goat anti-rabbit HRP at 1/2000 dilution

    Predicted band size : 23 kDa
    Observed band size : 23 kDa
  • ab52959 at 1/250-1/500 dilution staining CD3 epsilon in human spleen by Immunohistochemistry, Paraffin embedded tissue.
  • ab52959 showing positive staining in Normal tonsil tissue.

  • ab52959 showing positive staining in Normal spleen tissue.

  • ab52959 showing negative staining in Normal brain tissue.

  • ab52959 showing negative staining in Normal kidney tissue.

  • ab52959 showing negative staining in Skeletal muscle tissue.

References for Anti-CD3 epsilon antibody [EP449E] (ab52959)

This product has been referenced in:
  • Huang YH  et al. CEACAM1 regulates TIM-3-mediated tolerance and exhaustion. Nature 517:386-90 (2015). FM ; Human . Read more (PubMed: 25363763) »
  • Berglin L  et al. In situ characterization of intrahepatic non-parenchymal cells in PSC reveals phenotypic patterns associated with disease severity. PLoS One 9:e105375 (2014). IHC (PFA fixed) ; Human . Read more (PubMed: 25141347) »

See all 3 Publications for this product

Product Wall

Abcam guarantees this product to work in the species/application used in this Abreview.
Application Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Sample Human Tissue sections (distal colon)
Specification distal colon
Fixative Paraformaldehyde
Antigen retrieval step Heat mediated - Buffer/Enzyme Used: citrate buffer
Permeabilization No
Blocking step Serum as blocking agent for 20 minute(s) · Concentration: 5% · Temperature: 25°C

Mrs. Isabel Romero Calvo

Verified customer

Submitted Jan 11 2013

Vielen dank fuer Ihren Anruf. Ich habe nun ein paar Antikoerper fuer Sie herrausgesucht, die nur humane T Zellen erkennen und nicht T Zellen aus der Ratte und fuer IHC-P getestet und garantiert sind. Bitte folgen Sie den jeweiligen Links ...

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