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The subunit CD3E carries a human IgG1 Fc fragment at the C-terminus, followed by a polyhistidine tag. The subunit CD3D carries a human IgG1 Fc fragment at the C-terminus, followed by a flag tag. The protein has a calculated MW of 39.2 kDa (CD3E) and 37.5 kDa (CD3D) . The protein migrates as 45-55 kDa on a SDS-PAGE gel when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition due to glycosylation.
>95% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
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:
Biotinylated Human CD3E&CD3D Heterodimer Protein, Fc,His Tag&Fc,Flag Tag, primary amine labeling on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95% (With Star Ribbon Pre-stained Protein Marker).
The purity of Biotinylated Human CD3E&CD3D Heterodimer Protein, Fc,His Tag&Fc,Flag Tag, primary amine labeling (Cat. No. CDD-H82W0) is more than 90% and the molecular weight of this protein is around 80-95 kDa verified by SEC-MALS.
Immobilized Biotinylated Human CD3E&CD3D Heterodimer Protein, Fc,His Tag&Fc,Flag Tag, primary amine labeling (Cat. No. CDD-H82W0) at 1 μg/mL (100 μL/well)on streptavidin (Cat. No. STN-N5116) precoated (0.2 μg/well) plate, can bind Monoclonal Anti-Human CD3 Antibody, Mouse IgG2a (Clone: OKT3), premium grade (Cat. No. CDE-M120a) with a linear range of 2-20 ng/mL (QC tested).
Immobilized Human BCMA Protein, His Tag (HPLC-verified) (Cat. No.BCA-H522y) at 2 μg/mL, add increasing concentrations of Bispecific T cell Engager (CD3 X BCMA) and then add Biotinylated Human CD3E&CD3D Heterodimer Protein, Fc,His Tag&Fc,Flag Tag, primary amine labeling (Cat. No. CDD-H82W0) at 1 μg/mL. Detection was performed using HRP-conjugated streptavidin with sensitivity of 0.39 ng/mL (Intact assay, Routinely tested).
Biotinylated Human CD3E&CD3D Heterodimer Protein, Fc,His Tag&Fc,Flag Tag, ultra sensitivity (primary amine labeling) (MALS verified) (Cat. No. CDD-H82W0) captured on Biotin CAP-Series S Sensor Chip can bind Monoclonal Anti-Human CD3 Antibody, Mouse IgG2a (Clone: OKT3) with an affinity constant of 17.9 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Biotinylated Human CD3E&CD3D Heterodimer Protein, Fc,His Tag&Fc,Flag Tag, ultra sensitivity (primary amine labeling) (MALS verified) (Cat. No. CDD-H82W0) captured on Biotin CAP-Series S Sensor Chip can bind Bispecific T-cell Engager (CD3 X BCMA) with an affinity constant of 0.45 nM as determined in a SPR assay (Biacore 8K) (Routinely tested).
Loaded Biotinylated Human CD3E&CD3D Heterodimer Protein, Fc,His Tag&Fc,Flag Tag, primary amine labeling (Cat. No. CDD-H82W0) on SA Biosensor, can bind Monoclonal Anti-Human CD3 Antibody, Mouse IgG2a (Clone: OKT3), premium grade (Cat. No. CDE-M120a) with an affinity constant of 1.07 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Loaded Biotinylated Human CD3E&CD3D Heterodimer Protein, Fc,His Tag&Fc,Flag Tag, primary amine labeling (Cat. No. CDD-H82W0) on SA Biosensor, can bind UCHT1 with an affinity constant of 21.8 pM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
Loaded Biotinylated Human CD3E&CD3D Heterodimer Protein, Fc,His Tag&Fc,Flag Tag, primary amine labeling (Cat. No. CDD-H82W0) on SA Biosensor, can bind Bispecific BCMA×CD3 T cell-engaging Antibody (Cat. No. CDA-H52Hb) with an affinity constant of 2.05 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
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