CD3E Recombinant Monoclonal Antibody

Code CSB-RA004931MA1HU
Size US$210
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  • Overlay Peak curve showing JK cells surface stained with CSB-RA004931MA1HU (red line) at 1:100. Then 10% normal goat serum was Incubated to block non-specific protein-protein interactions followed by the antibody (1µg/1*106cells) for 45 min at 4°C. The secondary antibody used was FITC-conjugated Goat Anti-Mouse IgG(H+L) at 1/200 dilution for 35 min at 4°C. Isotype control antibody (green line) was mouse IgG1 (1µg/1*106cells) used under the same conditions. Acquisition of >10, 006 events was performed.
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Product Details

Uniprot No.
Target Names
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
Species Reactivity
Recombinant Human CD3E protein
Immunogen Species
Homo sapiens (Human)
Mouse IgG
Clone No.
Purification Method
It differs from different batches. Please contact us to confirm it.
Preservative: 0.03% Proclin 300
Constituents: 50% Glycerol, 0.01M PBS, PH 7.4
Tested Applications
Recommended Dilution
Application Recommended Dilution
FC 1:20-1:500
Troubleshooting and FAQs
Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Lead Time
Basically, we can dispatch the products out in 1-3 working days after receiving your orders. Delivery time maybe differs from different purchasing way or location, please kindly consult your local distributors for specific delivery time.

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Target Background

Part of the TCR-CD3 complex present on T-lymphocyte cell surface that plays an essential role in adaptive immune response. When antigen presenting cells (APCs) activate T-cell receptor (TCR), TCR-mediated signals are transmitted across the cell membrane by the CD3 chains CD3D, CD3E, CD3G and CD3Z. All CD3 chains contain immunoreceptor tyrosine-based activation motifs (ITAMs) in their cytoplasmic domain. Upon TCR engagement, these motifs become phosphorylated by Src family protein tyrosine kinases LCK and FYN, resulting in the activation of downstream signaling pathways. In addition of this role of signal transduction in T-cell activation, CD3E plays an essential role in correct T-cell development. Initiates the TCR-CD3 complex assembly by forming the two heterodimers CD3D/CD3E and CD3G/CD3E. Participates also in internalization and cell surface down-regulation of TCR-CD3 complexes via endocytosis sequences present in CD3E cytosolic region.
Gene References into Functions
  1. The ionic CD3-epsilon -Lck interaction controls the phosphorylation level of the T-cell receptor. PMID: 28659468
  2. A novel pathogenic frameshift variant of CD3E gene has been found in two unrelated T-B+ NK+ severe combined immunodeficiency infants from Turkey. PMID: 28597365
  3. the stalk domains of NKp30 and NKp46, another NCR employing CD3zeta for signaling, were not exchangeable without drastic deficiencies in folding, plasma membrane targeting, and/or ligand-induced receptor signaling. PMID: 27754869
  4. The inducible recruitment of WASp to the TCR-CD3 complex is partially dependent of tyrosine phosphorylation of Cd3e. PMID: 26342115
  5. increase. Our results indicate that the change in CD3zeta-chain expression from the baseline is an independent predictor of residual and recurrent head and neck squamous cell carcinoma. PMID: 26888626
  6. Data suggest that HIV-1 gp41 transmembrane domain (TMD) directly interacts with TMDs of the T-cell receptor and it's CD3-antigen co-receptors (delta, gamma, and epsilon); these interactions appear to be involved in immune evasion mechanism of HIV-1. PMID: 26828096
  7. that Nck recruitment to the TCR is fundamental to mount an efficient T cell response in vivo, and that the Nck-CD3epsilon interaction may represent a target for pharmacological modulation of the immune response. PMID: 24470497
  8. ABCB1 homozygous 3435 TT carrier subjects showed the lowest Pgp activity compared with 3435 CT and CC carriers of renal transplant patients. PMID: 23216707
  9. Local changes in the lipid composition of TCR microclusters render the CD3epsilon cytoplasmic domain accessible during early stages of T cell activation. PMID: 23166358
  10. Results show that levels of CD3epsilon, CD25, CD68, and ICAM-1 mRNA in BCC biopsies may predict risk for new basal cell carcinomas. PMID: 21980389
  11. analysis of the transgenic integration site in immunodeficient tgepsilon26 human CD3epsilon transgenic mice PMID: 21203507
  12. Results suggest that generation of CD3varepsilon chain isoforms with different N-terminal sequence and pI is a general phenomenon. PMID: 19616027
  13. Recruitment of Nck by CD3 epsilon reveals a ligand-induced conformational change essential for T cell receptor signaling and synapse formation. PMID: 12110186
  14. T cell receptor can be recruited to a subset of plasma membrane rafts, independently of cell signaling and attendantly to raft clustering PMID: 12499387
  15. SCID is caused by a CD3E deficiency. PMID: 15546002
  16. CD3 expression was strong in normal proximal and distal tubular epithelium and in renal oncocytomas, weak in chromophobe carcinoma, and negative in clear cell carcinomas, in papillary renal cell carcinoma, and in a transitional cell carcinoma. PMID: 16308105
  17. The CD3 epsilon immune recognition receptor cytoplasmic domain binds to acidic and mixed phospholipid vesicles with a binding strength that correlates with the protein net charge and the presence of clustered basic amino acid residues. PMID: 17176095
  18. CD3epsilon-mediated signal transduction pathway is essential for this transformation process PMID: 17507663
  19. Notch-dependent cytoplasmic CD3 expression can only be achieved during the early phase of NK-cell differentiation. PMID: 17630354
  20. In lung adenocarcinoma patients, significant decreases of MFI values for CD3epsilon, but not CD3zeta, were found in CD4+T and CD8+T cells from pleural effusion compared to peripheral blood and in peripheral blood of patients compared to healthy donors. PMID: 17668204
  21. Data show that Nck forms a complex with an atypical PxxDY motif of the CD3epsilon tail, which encompasses Tyr166 within the activation motif and a T-cell receptor endocytosis signal. PMID: 18555270
  22. Data show that anti-CD3 monoclonal antibody (MAb)-mediated chimpanzee T-cell activation is a function of the anti-CD3 MAb isotype and is not governed by Siglec expression. PMID: 18667496
  23. Results revealed that the human CD3 epsilon subunit forms a homodimer structure, which provide insight into our understanding of the molecular assembly of the CD3 molecular complex. PMID: 19724882

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Involvement in disease
Immunodeficiency 18 (IMD18)
Subcellular Location
Cell membrane; Single-pass type I membrane protein.
Database Links

HGNC: 1674

OMIM: 186830

KEGG: hsa:916

STRING: 9606.ENSP00000354566

UniGene: Hs.3003

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