Human CD3 epsilon, Mouse IgG2a Fc Tag (CDN-H5253) is expressed from human 293 cells (HEK293). It contains AA Asp 23 - Asp 126 (Accession # NP_000724.1).
Predicted N-terminus: Asp 23
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This protein carries a mouse IgG2a Fc tag at the C-terminus.
The protein has a calculated MW of 38.6 kDa. The protein migrates as 40-50 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.
Less than 1.0 EU per μg by the LAL method.
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 100 mM Glycine, 25 mM Arginine, 150 mM NaCl, pH7.5. Normally trehalose is added as protectant before lyophilization.
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Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
Human CD3 epsilon, Mouse IgG2a 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%.
The purity of Human CD3 epsilon, Mouse IgG2a Fc Tag (Cat. No. CDN-H5253) was more than 90% and the molecular weight of this protein is around 80-95 kDa verified by SEC-MALS.
Immobilized Human CD3 epsilon, Mouse IgG2a Fc Tag (Cat. No. CDN-H5253) at 1 μg/mL (100 μL/well) can bind Mouse Anti-Human CD3 (SP34-2) (mouse IgG1) with a linear range of 9.8-39 ng/mL (QC tested).
Anti-Human CD3 mAb, mouse IgG1 (Clone # SP34-2) immobilized on CM5 Chip can bind Human CD3 epsilon, Mouse IgG2a Fc Tag (Cat. No. CDN-H5253) with an affinity constant of 75.2 nM as determined in a SPR assay (Biacore T200) (Routinely tested).
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.