PROVETOP

Non-biotinylated Human CD3E/CD3 epsilon 23-48 Protein

Catalog No: CD3E-HP003

Species
Human
Expression System
HEK293
Tag
an hFc (IgG1), Avi
Activity
Activity verified

Product overview

Recombinant Human CD3E/CD3 epsilon 23-48 Protein is expressed in HEK293 cells with an hFc (IgG1) tag and Avi tag at the C-terminus. It contains amino acid residues Asp23-Thr48 (UniProt accession: P07766).

Product Details

Molecular Aliases
CD3e; CD3E; T3E; FLJ18683; TCRE; CD3-epsilon; IMD18
Protein Length
Asp23-Thr48
Expression System
HEK293
Theoretical Molecular Weight
The protein has a predicted MW of 31.3 kDa. Due to glycosylation, the protein migrates to 40-50 kDa based on Bis-Tris PAGE result.
Purity
> 95% as determined by Bis-Tris PAGE > 95% as determined by HPLC
Endotoxin
Less than 1 EU per μg by the LAL method.
Buffer / Formulation
Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
State
Lyophilized
Storage Conditions
-20 to -80°C for 12 months as supplied from date of receipt. -80°C for 3 months after reconstitution. Recommend to aliquot the protein into smaller quantities for optimal storage. Please minimize freeze-thaw cycles.
Reconstitution Advice
Dissolve the lyophilized protein in distilled water. Please refer to the Certificate of Analysis for detailed instructions.

Data Display

Bis-Tris PAGE
CD3E-HP003 Bis-Tris-PAGE-white result

Human CD3E 23-48 on Bis-Tris PAGE under reduced condition. The purity is greater than 95%.

SEC-HPLC
CD3E-HP003 SEC-HPLC result

The purity of Human CD3E 23-48 is greater than 95% as determined by SEC-HPLC.

ELISA
CD3E-HP003 ELISA result

Immobilized Human CD3E 23-48, hFc Tag at 1μg/ml (100μl/Well) on the plate. Dose response curve for Biotinylated Anti-CD3 Antibody, hFc Tag with the EC50 of 45.4ng/ml determined by ELISA. (QC Test)

Background

CD3E, is a single-pass type I membrane protein.CD3 (cluster of differentiation 3) T cell co-receptor helps to activate both the cytotoxic T cell (CD8 naive T cells) and also T helper cells (CD4 naive T cells). It consists of a protein complex and is composed of four distinct chains. In mammals, the complex contains a CD3γ chain, a CD3δ chain, and two CD3ε chains.

References

  1. Kroesen B J, Nieken J, Sleijfer D T, et al. Approaches to lung cancer treatment using the CD3E×GP-2-directed Bispecific Monoclonal Antibody BIS-1[J]. Cancer Immunology Immunotherapy, 1997, 45(3-4):203-206.

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