Recombinant Mouse T-cell surface glycoprotein CD3 epsilon chain (Cd3e), partial

In Stock
Code CSB-YP004931MO
Size $306
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.
  • Based on the SEQUEST from database of Yeast host and target protein, the LC-MS/MS Analysis result of CSB-YP004931MO could indicate that this peptide derived from Yeast-expressed Mus musculus (Mouse) Cd3e.
  • Based on the SEQUEST from database of Yeast host and target protein, the LC-MS/MS Analysis result of CSB-YP004931MO could indicate that this peptide derived from Yeast-expressed Mus musculus (Mouse) Cd3e.
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Product Details

Greater than 90% as determined by SDS-PAGE.
Target Names
Uniprot No.
Research Area
Alternative Names
Cd3eT-cell surface glycoprotein CD3 epsilon chain; T-cell surface antigen T3/Leu-4 epsilon chain; CD antigen CD3e
Mus musculus (Mouse)
Expression Region
Target Protein Sequence
Note: The complete sequence including tag sequence, target protein sequence and linker sequence could be provided upon request.
Mol. Weight
11.9 kDa
Protein Length
Extracellular Domain
Tag Info
N-terminal 6xHis-tagged
Liquid or Lyophilized powder
Note: We will preferentially ship the format that we have in stock, however, if you have any special requirement for the format, please remark your requirement when placing the order, we will prepare according to your demand.
Tris-based buffer,50% glycerol
Troubleshooting and FAQs
Storage Condition
Store at -20°C/-80°C upon receipt, aliquoting is necessary for mutiple use. Avoid repeated freeze-thaw cycles.
Shelf Life
The shelf life is related to many factors, storage state, buffer ingredients, storage temperature and the stability of the protein itself.
Generally, the shelf life of liquid form is 6 months at -20°C/-80°C. The shelf life of lyophilized form is 12 months at -20°C/-80°C.
Lead Time
3-7 business days
Repeated freezing and thawing is not recommended. Store working aliquots at 4°C for up to one week.
Datasheet & COA
Please contact us to get it.

This recombinantly engineered protein provides the ideal tool to study the T-cell surface glycoprotein CD3 epsilon chain from the Mouse species. Generated in a yeast-based expression system, the Recombinant Mouse Cd3e delivers high-quality performance, accuracy, and precision, vital for your scientific research.

The product showcases the extracellular domain of the protein, with the amino acid sequence from the 23rd to the 108th position. It features an N-terminal 6xHis tag to aid in protein purification and detection. The purity of the protein exceeds 90% as determined by SDS-PAGE, ensuring you receive a high-quality product for your work. The Recombinant Mouse Cd3e is offered in either a liquid or a lyophilized powder form, allowing flexibility based on your experimental design and needs.

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We are interested in item CSB-YP004931MO. For the current lot, would you please tell me the buffer before the product was lyophilized? What do you recommend for reconstitution?
Would you have this information available to share?

Thanks for your email.
The stock of this protein has just run out. The new lot is already under production and we will rush the preparation.
1. This protein has been delivered in liquid form in the following two buffers before: 1) PBS, pH 7.4, 50% glycerol; 2) 20 mM Tris-HCl, 0.5 M NaCl, pH 8.0, 50% glycerol.
2. If you would like Lyophilized Powder, we will add 6% trehalose to help dissolving later. The lead time will be extended for 3 working days. You can reconstitute the lyophilized protein directly with sterile deionized water. The general reconstitution method is as follows
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Please reconstitute protein in deionized sterile water to a concentration of 0.1-1.0 mg/mL.
We recommend to add 5-50% of glycerol (final concentration) and aliquot for long-term storage at -20℃/-80℃. Our default final concentration of glycerol is 50%. You could use it as reference.
Any more questions, feel free to contact us. Nice day.

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. 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 data show that CD3epsilon chain couples to Cbl via simultaneous binding of both proteins to Numb, thus mediating TCR degradation PMID: 26507128
  2. IL-17-producing CD3(bright) gammadelta T cells responded promptly and strongly to pneumococcal infection and during skin inflammation. PMID: 25385067
  3. these results suggest that CD3zeta can be degraded by two pathways: SLAP/c-Cbl, which targets internalized cell surface CD3zeta dependent on TCR signaling, and LAPTM5, which targets intracellular CD3zeta independent of TCR signaling. PMID: 24638062
  4. these results indicate that membrane association of the CD3epsilon signaling domain is required for optimal thymocyte development and peripheral T cell function. PMID: 24899501
  5. These results suggest that proteasome-mediated degradation is involved in hypophosphorylated LAT and PLCgamma1 in Dow2-induced anergic T cells. The novel CD3-specific Ab, Dow2, may provide us with a unique tool for inducing immunosuppression PMID: 24595757
  6. 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
  7. Structure of murine CD3epsilon complexed with the mitogenic anti-CD3epsilon antibody 2C11 enabled structural comparisons of antibody-liganded and unliganded forms of CD3epsilon revealing that antibody binding does not induce any substantial rearrangements within CD3epsilon. PMID: 22262845
  8. CFTR dysfunction in T cells can lead directly to aberrant immune responses in CD3+ lymphocytes PMID: 20724552
  9. analysis of the transgenic integration site in immunodeficient tgepsilon26 human CD3epsilon transgenic mice PMID: 21203507
  10. Polymorphisms of the CD3varepsilon ectodomain exist in mice,some of which lead to amino acid substitutions which cause structural changes and affect anti-CD3 antibody binding. PMID: 20638133
  11. the stalks of the CD3 proteins may be critical in transmitting part of the activation signal directly through the membrane. PMID: 19956738
  12. Results suggest that generation of CD3varepsilon chain isoforms with different N-terminal sequence and pI is a general phenomenon. PMID: 19616027
  13. We demonstrate that the intra-cytoplasmic (IC) domain of CD3epsilon plays a critical role in regulating TCR expression on DP thymocytes. PMID: 19819936
  14. inability of Nck to bind to the CD3epsilon proline-rich sequence in thymocytes after TCR ligation PMID: 15972658
  15. That CD43 costimulation was responsible for elevated cytokine/chemokine activity was confirmed at the transcriptional level by real-time PCR for IFN-gamma and CCL5, and by ELISA for IFN-gamma. PMID: 16246302
  16. insulin-specific Tregs producing IL-10, TGF-beta, and IL-4 are enhanced by suppression of CD3epsilon in a mouse model of autoimmune diabetes PMID: 16628253
  17. GRK2 is primarily involved in arresting G protein-coupled receptor signals, its interaction with CD3 epsilon may provide a novel means whereby the TCR can negatively regulate signals generated through G protein-coupled receptors. PMID: 17420248
  18. FcgammaRIIB, a low-affinity immunoglobulin G Fc receptor, and CD3 are involved in cerebellar functions. PMID: 17502348
  19. CD3epsilon-mediated signal transduction pathway is essential for this transformation process PMID: 17507663
  20. mouse CD3 epsilon chains N-terminal charged residues have roles in generating isoforms modulating antigen T cell receptor-mediated signals and T cell receptor-CD3 interactions PMID: 17561508
  21. CD3epsilon proline-rich sequence amplifies weak TCR signals by promoting synapse formation and CD3epsilon phosphorylation PMID: 18566390
  22. have identified distinct roles for individual motifs of CD3epsilon in the preTCR-mediated differentiation and proliferation PMID: 19342663
  23. functional role for the CD3 epsilon lipid-binding domain in T cell biology PMID: 19542373
  24. importance of the conformational change in CD3epsilon for the activation of T cells PMID: 19671929

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Subcellular Location
Cell membrane; Single-pass type I membrane protein.
Database Links
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