Anti-CD3 Antibody (Monoclonal, CA-3)

Mouse IgG monoclonal antibody for CD3, CD3e molecule, epsilon (CD3-TCR complex) (CD3E) detection. Tested with IHC-F, ICC, FCM in Human. No cross reactivity with other proteins.

SKU MA1015
Size 100μg/vial
Reactivity Human
Clonality Monoclonal
Clone Number CA-3
Host Mouse
Ig Isotype Mouse IgG1
Applications Flow Cytometry, IHC, ICC


Product Name Anti-CD3 Antibody (Monoclonal, CA-3)
See all CD3E primary antibodies, ELISA kits and proteins
SKU/Catalog Number MA1015
Storage & Handling At -20°C for one year. After reconstitution, at 4°C for one month. It can also be aliquotted and stored frozen at -20°C for a longer time.Avoid repeated freezing and thawing.
Size 100μg/vial
Description Monoclonal clone# G2 antibody for CD3/CD3E detection. Host: Mouse.Size: 100μg/vial. Tested applications: IHC-F. Reactive species: Human. CD3/CD3E information: Molecular Weight: 21312 MW; Subcellular Localization: CD3E: Membrane; Single-pass type I membraneprotein.|Cd3e: Cell membrane; .
Cite This Product Anti-CD3 Antibody (Monoclonal, CA-3) (Boster Biological Technology, Pleasanton CA, USA, Catalog # MA1015)
Specificity Anti-CD3 Antibody (Monoclonal, CA-3) (MA1015) reacts with Human CD3E, in native form and recombinant. Superfamily members of CD3E are not reactive to MA1015.
Host Mouse
Contents/Buffer Mouse ascites fluid, 1.2% sodium acetate, 2mg BSA, with 0.01mg NaN3 as preservative.
Form Lyophilized
Reconstitution Add 1ml of PBS buffer will yield a concentration of 100ug/ml.
Immunogen Human thymocytes followed by Sezary T cells.
Reactivity Human

Assay Details

Our Boster Quality Guarantee for Anti-CD3 Antibody (Monoclonal, CA-3) covers its use in the following applications.

*The recommended dilution ratios/concentrations are for reference only and optimal dilutions/concentrations should be determined by the end user.

Assay Dilutions Overview

Concentration: Add 1ml of PBS buffer will yield a concentration of 100ug/ml.
Immunohistochemistry(Frozen Section), 1μg/ml, Human
Immunocytochemistry, 0.5-1μg/ml, Human
Flow Cytometry, 1-3μg/1x106 cells, Human

Boster's Compatible Products

The following reagents are used to generate the images below for Anti-CD3 Antibody (Monoclonal, CA-3) (MA1015).

Boster recommends HRP Conjugated anti-Mouse IgG Super Vision Assay Kit (SV0001-1) for IHC(F) and ICC.

Images And Assay Conditions


Figure 1. Flow Cytometry analysis of human PBMC cells using anti-CD3 antibody (MA1015).
Overlay histogram showing human PBMC cells stained with MA1015 (Blue line).The cells were blocked with 10% normal goat serum. And then incubated with mouse anti-CD3 Antibody (MA1015,1μg/1x106 cells) for 30 min at 20°C. DyLight®488 conjugated goat anti-mouse IgG (BA1126, 5-10μg/1x106 cells) was used as secondary antibody for 30 minutes at 20°C. Isotype control antibody (Green line) was mouse gG (1μg/1x106) used under the same conditions. Unlabelled sample (Red line) was also used as a control.

Target Info

Protein Target Info (Source:

Uniprot Id D4A5M2
Gene Name CD3E
Protein Name CD3e molecule, epsilon(CD3-TCR complex)
Alternative Names CD3 antigen, epsilon polypeptide (Predicted) ;Protein Cd3e ;Cd3e ;Cd3e_predicted ;rCG_58471 ;
Subcellular Localization CD3E: Membrane; Single-pass type I membraneprotein.|Cd3e: Cell membrane
Molecular Weight 21312 MW

*if product is indicated to react with multiple species, protein info is based on the human gene.


Protein Function CD3E: The CD3 complex mediates signal transduction.
Research Areas Human

*You can search these to find other products in these research areas.
Background The alpha-beta heterodimeric T-cell antigen receptor binds antigen in association with major histocompatibility complex proteins on host cell surfaces. These 2 disulfide-linked glycoproteins, TCRA and TCRB are associated on T-cell surfaces with a complex of proteins called CD3(formerly T3). Human CD3 consists of at least 4 proteins: gamma, delta, epsilon, and zeta. The CD3-gamma/CD3-delta gene pair is within 300 kb of the CD3-epsilon gene and therefore these genes form a tightly linked cluster on 11q23. The clustering may be significant in terms of their simultaneous activations during T-cell development.

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Buy one primary antibody get one 0.5ml HRP or Biotin secondary antibody for free.
*Sample sizes are prepared on demand and will take extra lead time. (cannot be conjugated)



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Customer Q&As

  • Q: What would be the approximate optimal dilution for this antibody? Can we also use this antibody on paraffin embedded sections? Keyword: protocol, applications
    A: The antibodies are lyophilized, and the recommended working concentration is 1μg/ml. This antibody can only be used on frozen section.
  • Q: Is your western blot protocol provided from the website applicable for all your antibodies? Keyword: applications, WB
    A: The protocol is applicable for all our antibodies in WB, the NC Membrane(0.45μm or 0.22μm) and transfer time(70 mins or 50 mins) depends on the protein molecular weight, details can be found in included protocol.
  • Q: Can I conjugate markers to this antibody? Can I link custom conjugates to this antibody? Keyword: conjugation
    A: The antibody is stored with BSA and cannot be conjugated with markers. Carrier free antibodies are available upon request. Please contact [email protected]
  • Q: Can you provide monoclonal antibodies carrier free?
    A: For most of our monoclonal antibodies, we are unable to provide them carrier free. If you would like to check if a specific antibody can be provided carrier free, please send an email to [email protected]
  • Q: What are some alternative names that could be used to describe this product?
    A: Some common names include but are not limited to cd3 antibody, t cell receptor antibody, t3 antibody
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