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Cynomolgus CD3 epsilon Protein, His Tag & Fc Tag  pdf  pdf  pdf


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CDE-C5254-100ug
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Synonym

FLJ18683,T3E,TCRE,CD3E,CD3-epsilon

Source

Cynomolgus CD3 epsilon, His Tag & Fc Tag (CDE-C5254) is expressed from human 293 cells (HEK293). It contains AA Gln 22 - Asp 117 (Accession # Q95LI5).

Predicted N-terminus: Gln 22

Molecular Characterization

CD3E(Gln 22 - Asp 117)Q95LI5
Fc(Pro 100 - Lys 330)P01857
Poly-his

This protein carries a human IgG1 Fc tag at the C-terminus, followed by a polyhistidine tag.

The protein has a calculated MW of 38.3 kDa. The protein migrates as 40-50 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

Endotoxin

Less than 1.0 EU per μg by the LAL method.

 

Purity

>95% as determined by SDS-PAGE.

Formulation

Lyophilized from 0.22 μm filtered solution in 50 mM tris, 100 mM glycine, pH7.5. Normally trehalose is added as protectant before lyophilization.

Contact us for customized product form or formulation.

Reconstitution

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

Storage

For long term storage, the product should be stored at lyophilized state at -20°C or lower.

Please avoid repeated freeze-thaw cycles.

No activity loss is observed after storage at:

  1. 4-8°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

SDS-PAGE

Cynomolgus CD3 epsilon, His Tag & Fc Tag (Catalog # CDE-C5254) SDS-PAGE gel

Cynomolgus CD3 epsilon, His Tag & Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

 

Background

CD3e molecule, epsilon is also known as CD3E, is a T-cell surface single-pass type I membrane glycoprotein. CD3E contains 1 Ig-like (immunoglobulin-like) domain and 1 ITAM domain. CD3E, together with CD3-gamma, CD3-delta and CD3-zeta, and the T-cell receptor alpha/beta and gamma/delta heterodimers, forms the T cell receptor-CD3 complex. This complex plays an important role in coupling antigen recognition to several intracellular signal-transduction pathways. The genes encoding the epsilon, gamma and delta polypeptides are located in the same cluster on chromosome 11. The epsilon polypeptide plays an essential role in T-cell development. CD3E plays an essential role in T-cell development, and defects in CD3E gene cause severe immunodeficiency. CD3E gene has also been linked to a susceptibility to type I diabetes in women. CD3E has been shown to interact with TOP2B, CD3EAP and NCK2.

References

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