Recombinant Human CD3D & CD3E Heterodimer Protein

• Background:

  T-cell surface glycoprotein CD3D & CD3E, also known as CD3 delta & CD3 epsilon chain, 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.

• Synonyms:

  CD3D; CD3d; T-Cell Receptor T3 Delta Chain; T-Cell Surface Glycoprotein CD3 Delta Chain; T3D

• UniProt:

  P04234; P07766

• Accession Number:

  P04234-1&P07766-1

• Expression System:

  HEK293 Cells

• Tag:

  C-Flag-hFc

• Sequence:

  Met 1-Ala105&Met 1-Asp126

• Applications:

  ELISA

• Field of Research:

  Immunology; Stem cells

• Endotoxin:

  < 1.0 EU per μg of the protein as determined by the LAL method.

• Purity:

  > 90 % as determined by reducing SDS-PAGE.

• Bioactivity:

  Measured by its binding ability in a functional ELISA. Immobilized human CD3D & CD3E Heterodimer Protein at 10 μg/ml (100 μl/well) can bind OKT3-mIgG2a. The EC50 of OKT3-mIgG2a is 0.07-0.17 μg/ml.

• Reconstitution:

  Please refer to the printed manual for detailed information.

• Shipping Conditions:

  This product is provided as lyophilized powder which is shipped with ice packs.

• Storage Conditions:

  Generally, lyophilized proteins are stable for up to 12 months when stored at -20 to -80°C. Reconstituted protein solution can be stored at 4-8°C for 2-7 days. Aliquots of reconstituted samples are stable at < -20°C for 3 months.

• Calculated Molecular Weight:

  37.5 & 40 kDa

• Observed Molecular Weight:

  45 - 50 kDa

• Formulation:

  Lyophilized from sterile PBS, pH 7.4
  Normally 5% - 8% trehalose, mannitol and 0.01% Tween 80 are added as protectants before lyophilization.
  Please refer to the specific buffer information in the printed manual.

• Species:

  Human