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Your Position: Home > Protein > CD8 alpha > CDA-H82E3

Biotinylated Human CD8 alpha / CD8A Protein, His,Avitag™

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Based on the high binding affinity between biotin-streptavidin systems, our Streptavidin series products are recommended to use together with biotinylated proteins to get lower non-specific binding results in a shorter time.

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  • Synonym
    CD8A,CD8,Leu2,MAL,p32
  • Source
    Biotinylated Human CD8 alpha, His,Avitag (CDA-H82E3) is expressed from human 293 cells (HEK293). It contains AA Ser 22 - Asp 182 (Accession # P01732-1).
    Predicted N-terminus: Ser 22
  • Molecular Characterization
    Online(Ser 22 - Asp 182) P01732-1

    This protein carries a polyhistidine tag at the C-terminus, followed by an Avi tag (Avitag™).

    The protein has a calculated MW of 21.2 kDa. The protein migrates as 25-32 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

  • Biotinylation
    Biotinylation of this product is performed using Avitag™ technology. Briefly, the single lysine residue in the Avitag is enzymatically labeled with biotin.
  • Biotin:Protein Ratio
    Passed as determined by the HABA assay / binding ELISA.
  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >90% as determined by SDS-PAGE.

  • Formulation

    Lyophilized from 0.22 μm filtered solution in PBS, pH7.4. Normally trehalose is added as protectant before lyophilization.

    Contact us for customized product form or formulation.

  • 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.

  • 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:

    1. -20°C to -70°C for 12 months in lyophilized state;
    2. -70°C for 3 months under sterile conditions after reconstitution.
SDS-PAGE
Biotinylated Human CD8 alpha, His,Avitag (Cat. No. CDA-H82E3) SDS-PAGE gel

Biotinylated Human CD8 alpha, 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%.

Bioactivity-ELISA
Biotinylated Human CD8 alpha, His,AvitagBiotinylated Human CD8 alpha, His,Avitag (Cat. No. CDA-H82E3) ELISA bioactivity

Immobilized Biotinylated Human CD8 alpha, His,Avitag (Cat. No. CDA-H82E3) at 1 μg/mL (100 μL/well) on streptavidin (Cat. No. STN-N5116) precoated (0.5 μg/well) plate. can bind Anti-CD8 alpha Antibody, Mouse IgG2a (clone: OKT8) with a linear range of 0.2-2 ng/mL (QC tested).

Biotinylated Human CD8 alpha, His,AvitagBiotinylated Human CD8 alpha, His,Avitag (Cat. No. CDA-H82E3) ELISA bioactivity

Immobilized Anti-CD8 alpha Antibody, Mouse IgG2a (clone: OKT8) at 1 μg/mL (100 μL/well) can bind Biotinylated Human CD8 alpha, His,Avitag (Cat. No. CDA-H82E3) with a linear range of 1-39 ng/mL (Routinely tested).

  • Background
    Integral membrane glycoprotein that plays an essential role in the immune response and serves multiple functions in responses against both external and internal offenses. Interacts simultaneously with the T-cell receptor (TCR) and the MHC class I proteins presented by antigen presenting cells (APCs). In turn, recruits the Src kinase LCK to the vicinity of the TCR-CD3 complex. In NK-cells, the presence of CD8A homodimers at the cell surface provides a survival mechanism allowing conjugation and lysis of multiple target cells. CD8A homodimer molecules also promote the survival and differentiation of activated lymphocytes into memory CD8 T-cells.
  • Clinical and Translational Updates
      
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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