Product Details
Synonyms
FLJ18683, T3E, TCRE, CD3E, CD3-epsilon
Source
Biotinylated Human CD3 epsilon, His,Avitag (CDE-H82E1) is expressed from human 293 cells (HEK293). It contains AA Asp 23 - Asp 126 (Accession # P07766-1).
Predicted N-terminus: Asp 23
Request for sequenceMolecular Characterization

Other Tags and Version Biotin & Other Labeled Version
This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).
The protein has a calculated MW of 15.5 kDa. The protein migrates as 17-18 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
Labeling
Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
Protein Ratio
Passed as determined by the HABA assay / binding ELISA.
Purity
>90% as determined by SDS-PAGE.
Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
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.
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.
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Performance Data
SDS-PAGE

Biotinylated Human CD3 epsilon, His,Avitag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90% (With Star Ribbon Pre-stained Protein Marker).
Bioactivity-ELISA

Immobilized Mouse Anti-Human CD3 (SP34-2) at 2 μg/mL (100 μL/well) can bind Biotinylated Human CD3 epsilon, His,Avitag (Cat. No. CDE-H82E1) with a linear range of 0.2-6 ng/mL (QC tested).
Protocol
Immobilized Human DLL3, His Tag (Cat. No. DL3-H52H4) at 0.2 μg/mL, add increasing concentrations of Tarlatamab and then add Biotinylated Human CD3 epsilon, His,Avitag (Cat. No. CDE-H82E1) at 0.2 μg/mL. Detection was performed using HRP-conjugated Streptavidin (Acro, Cat. No. STN-NH913) with sensitivity of 8.21 ng/mL (Routinely tested).
Protocol
Immobilized Human CD20 Full Length Protein, His Tag (Cat. No. CD0-H52H3) at 2 μg/mL, add increasing concentrations of Glofitamab and then add Biotinylated Human CD3 epsilon, His,Avitag (Cat. No. CDE-H82E1) at 0.2 μg/mL. Detection was performed using HRP-conjugated Streptavidin (Acro, Cat. No. STN-NH913) with sensitivity of 41.71 ng/mL (Routinely tested).
Protocol
Immobilized Human BCMA, Mouse IgG2a Fc Tag (Cat. No. BCA-H5253) at 1 μg/mL, add increasing concentrations of Teclistamab and then add Biotinylated Human CD3 epsilon, His,Avitag (Cat. No. CDE-H82E1) at 0.2 μg/mL. Detection was performed using HRP-conjugated Streptavidin (Acro, Cat. No. STN-NH913) with sensitivity of 6.23 ng/mL (Routinely tested).
Protocol
Bioactivity-TR-FRET

In this TR-FRET assay, Streptavidin Protein Europium chelate (for TR-FRET) (Cat. No. FRT-TD09) is used as the Donor and Monoclonal Anti-Human IgG Antibody FA-Labeled (for TR-FRET) (Cat. No. FRT-TA02) is used as the Acceptor. Biotinylated Human CD3 epsilon, His,Avitag (Cat. No. CDE-H82E1), at 0.3125 ng/well, can bind to the Teclistamab with a linear detection range of 8-0.001 μg/mL (Routinely tested).

In this TR-FRET assay, Streptavidin Protein Europium chelate (for TR-FRET) (Cat. No. FRT-TD09) is used as the Donor and Monoclonal Anti-Human IgG Antibody FA-Labeled (for TR-FRET) (Cat. No. FRT-TA02) is used as the Acceptor. Biotinylated Human CD3 epsilon, His,Avitag (Cat. No. CDE-H82E1), at 0.5 ng/well, can bind to the Glofitamab with a linear detection range of 16-0.008 μg/mL (Routinely tested).

In this TR-FRET assay, Streptavidin Protein Europium chelate (for TR-FRET) (Cat. No. FRT-TD09) is used as the Donor and Monoclonal Anti-Human IgG Antibody FA-Labeled (for TR-FRET) (Cat. No. FRT-TA02) is used as the Acceptor. Biotinylated Human CD3 epsilon, His,Avitag (Cat. No. CDE-H82E1), at 0.5 ng/well, can bind to the Tarlatamab with a linear detection range of 8-0.004 μg/mL (Routinely tested).
Bioactivity-SPR

Bispecific T-cell Engager captured on Protein A Chip can bind Biotinylated Human CD3 epsilon, His,Avitag (Cat. No. CDE-H82E1) with an affinity constant of 2.62 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Protocol
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Background
Recent Advances
- English Name:
T-cell surface glycoprotein CD3 epsilon chain
- Category:
- Approved Drugs:
4 Details
- Drugs in Clinical Trials:
7 Details
- Highest Development Stage:
Approved
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