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Your Position: Home > Viral Proteins > Spike RBD > SPD-C82E8
  • Synonym
    Spike,S protein RBD,Spike glycoprotein Receptor-binding domain,S glycoprotein RBD,Spike protein RBD
  • Source
    Biotinylated SARS-CoV-2 S protein RBD, His,Avitag (SPD-C82E8) is expressed from human 293 cells (HEK293).
    Predicted N-terminus: Arg 319
  • Molecular Characterization

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

    The protein has a calculated MW of 28.2 kDa. The protein migrates as 33-35 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
    The biotin to protein ratio is 0.5-1 as determined by the HABA assay.
  • Endotoxin
    Less than 1.0 EU per μg by the LAL method.
  • Purity

    >95% as determined by SDS-PAGE.

    >90% as determined by SEC-MALS.

  • Formulation

    Supplied as 0.2 μm filtered solution in 10 mM PB, pH7.4.

    Contact us for customized product form or formulation.

  • Storage

    Please avoid repeated freeze-thaw cycles.

    This product is stable after storage at:

    1. The product MUST be stored at -70°C or lower upon receipt;
    2. -70°C for 3 months under sterile conditions.
  • Shipping
    This product is supplied and shipped as sterile liquid solution with dry ice, please inquire the shipping cost.
SDS-PAGE
Biotinylated SARS-CoV-2 S protein RBD, His,Avitag (Cat. No. SPD-C82E8) SDS-PAGE gel

Biotinylated SARS-CoV-2 S protein RBD, His,Avitag on SDS-PAGE under reducing (R) condition. The gel was stained overnight with Coomassie Blue. The purity of the protein is greater than 95%.

SEC-MALS
Biotinylated SARS-CoV-2 S protein RBD, His,Avitag (Cat. No. ) MALS images

The purity of Biotinylated SARS-CoV-2 S protein RBD, His,Avitag(Cat. No. SPD-C82E8) was more than 90% and the molecular weight of this protein is around 30-40 kDa verified by SEC-MALS.

Bioactivity-ELISA
Biotinylated SARS-CoV-2 S protein RBD, His,AvitagBiotinylated SARS-CoV-2 S protein RBD, His,Avitag (Cat. No. SPD-C82E8) ELISA bioactivity

Immobilized Human ACE2, Fc Tag (Cat. No. AC2-H5257) at 2 μg/mL (100 μL/well) can bind Biotinylated SARS-CoV-2 S protein RBD, His,Avitag (Cat. No. SPD-C82E8) with a linear range of 10-313 ng/mL (QC tested).

  • Background
    The Human Anti-SARS-CoV-2 Spike RBD Antibody-coupled Magnetic Beads is produced by coupling biotinylated anti-RBD antibody to streptavidin-conjugated magnetic beads. The pre-coupled beads are ready to use for SARS-CoV-2 spike protein or spike protein derivatives (S1, RBD, etc.) from your sample with high specificity. The uniform size and large surface-to-volume ratio of the beads ensure highly efficent immunocapture in a simple, fast and convenient workflow with high reproducibilty of data.
  • Clinical and Translational Updates
      
  • Please contact us via TechSupport@acrobiosystems.com if you have any question on this product.

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