Recombinant Anti-CD3 epsilon antibody [EPR5361(2)] - BSA and Azide free (ab240074)


  • Product name

    Anti-CD3 epsilon antibody [EPR5361(2)] - BSA and Azide free
    See all CD3 epsilon primary antibodies
  • Description

    Rabbit monoclonal [EPR5361(2)] to CD3 epsilon - BSA and Azide free
  • Host species

  • Tested applications

    Suitable for: Flow Cyt, IP, WBmore details
    Unsuitable for: IHC-P
  • Species reactivity

    Reacts with: Human
  • Immunogen

    Synthetic peptide within Human CD3 epsilon aa 1-100. The exact sequence is proprietary.

  • General notes

    ab240074 is the carrier-free version of ab133628 This format is designed for use in antibody labeling, including fluorochromes, metal isotopes, oligonucleotides, enzymes.


    Our carrier-free formats are supplied in a buffer free of BSA, sodium azide and glycerol for higher conjugation efficiency.

    Use our conjugation kits  for antibody conjugates that are ready-to-use in as little as 20 minutes with <1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

    Ab240074 is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm.

    Maxpar® is a trademark of Fluidigm Canada Inc.

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

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

    This product is a recombinant rabbit monoclonal antibody.



Our Abpromise guarantee covers the use of ab240074 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
Flow Cyt Use at an assay dependent concentration.

ab199376 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.

IP Use at an assay dependent concentration.
WB Use at an assay dependent concentration. Detects a band of approximately 23 kDa (predicted molecular weight: 23 kDa).
  • Application notes
    Is unsuitable for IHC-P.
  • Target

    • Function

      The CD3 complex mediates signal transduction.
    • Sequence similarities

      Contains 1 Ig-like (immunoglobulin-like) domain.
      Contains 1 ITAM domain.
    • Cellular localization

    • Information by UniProt
    • Database links

    • Alternative names

      • CD3 epsilon antibody
      • CD3e antibody
      • CD3e antigen 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


    • Flow cytometrical analysis of CD3 epsilon in HuT78 cells stained with ab133628 at a dilution of 1/100 (red) or a rabbit IgG (negative) (green).

      This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (ab133628).


    ab240074 has not yet been referenced specifically in any publications.

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