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分子别名（Synonym）
FLJ18683, T3E, TCRE, CD3E, CD3-epsilon
表达区间及表达系统（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 sequence蛋白结构（Molecular Characterization）
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.
标记（Labeling）
Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
蛋白标记度（Protein Ratio）
Passed as determined by the HABA assay / binding ELISA.
纯度（Purity）
>90% as determined by SDS-PAGE.
制剂（Formulation）
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法（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.
存储（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.
质量管理控制体系（QMS）
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数据展示
电泳（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).
活性（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
活性（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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