膜杰作
Star Staining
分子别名（Synonym）
CD3E & CD3D,CD3 delta & CD3 epsilon
表达区间及表达系统（Source）
Human CD3E&CD3D Heterodimer Protein, Fc Tag&Fc Tag (CDD-H5255) is expressed from human 293 cells (HEK293). It contains AA Asp 23 - Asp 126 (CD3E) & Phe 22 - Ala 105 (CD3D) (Accession # P07766-1 (CD3E) & P04234-1 (CD3D)).
Predicted N-terminus: Asp 23 (CD3E) & Phe 22 (CD3D)
Request for sequence
蛋白结构（Molecular Characterization）
Human CD3E&CD3D Heterodimer Protein, Fc Tag&Fc Tag is produced by co-expression of CD3E and CD3D, has a calculated MW of 38.3 kDa (CD3E) and 35.8 kDa (CD3D). Subunit CD3E is fused with a human IgG1 Fc tag at the C-terminus and subunit CD3D is fused with a human IgG1 Fc tag at the C-terminus. As a result of glycosylation, the protein migrates as 45-60 kDa under reducing (R) condition, and 90-110 kDa under non-reducing (NR) condition (SDS-PAGE).
内毒素（Endotoxin）
Less than 1.0 EU per μg by the LAL method.
纯度（Purity）
>90% as determined by SDS-PAGE.
>90% as determined by SEC-MALS.
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.
电泳（SDS-PAGE）
Human CD3E&CD3D Heterodimer Protein, Fc Tag&Fc Tag on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90%.
SEC-MALS
The purity of Human CD3E&CD3D Heterodimer Protein, Fc Tag&Fc Tag (Cat. No. CDD-H5255) is more than 90% and the molecular weight of this protein is around 75-85 kDa verified by SEC-MALS.
Report
活性（Bioactivity）-ELISA
Immobilized Human CD3E&CD3D Heterodimer Protein, Fc Tag&Fc Tag (Cat. No. CDD-H5255) at 1 μg/mL (100 μL/well) can bind Monoclonal Anti-Human CD3 Antibody, Mouse IgG2a (Clone: OKT3), premium grade (Cat. No. CDE-M120a) with a linear range of 0.8-6 ng/mL (QC tested).
Protocol
Immobilized Human CD3E&CD3D Heterodimer Protein, Fc Tag&Fc Tag (Cat. No. CDD-H5255) at 1 μg/mL (100 μL/well) can bind Mouse Anti Human CD3 with a linear range of 0.8-6 ng/mL (Routinely tested).
Protocol
Immobilized Human CD3E&CD3D Heterodimer Protein, Fc Tag&Fc Tag (Cat. No. CDD-H5255) at 1 μg/mL (100 μL/well) can bind UCHT1 with a linear range of 0.8-6 ng/mL (Routinely tested).
Protocol
Immobilized Human CD3E&CD3D Heterodimer Protein, Fc Tag&Fc Tag (Cat. No. CDD-H5255) at 1 μg/mL (100 μL/well) can bind Bispecific BCMA×CD3 T cell-engaging Antibody with a linear range of 0.8-6 ng/mL (Routinely tested).
Protocol
背景（Background）
T-cell surface glycoprotein CD3 delta & CD3 epsilon chain, also known as CD3D & CD3E or CD3D&CD3E respectively, are single-pass type I membrane proteins. CD3D, together with CD3- epsilon(CD3E) , CD3-gamma and CD3-zeta, and the T-cell receptor alpha/beta and gamma/delta heterodimers, forms the T cell receptor-CD3 complex. T cell receptor-CD3 complex plays an important role in coupling antigen recognition to several intracellular signal-transduction pathways.
