Biotinylated SARS-COV-2 Spike RBD Protein (COV-VM4BDB)

  • Express System: HEK293
  • Product Tag: C-His-Avi
  • Purity: > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
  • Biotinylated: yes
  • Activity: Immobilized Biotinylated SARS-COV-2 Spike RBD, His Tag at 1ug/ml (100ul/well) on the streptavidin precoated plate (5ug/ml). Dose response curve for Human ACE2, hFc Tag with the EC50 of 7.7ng/ml determined by ELISA. See testing image for detail.
  • Exact Sequence: Arg319-Asn532

Catalog: COV-VM4BDB

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Product Description Recombinant Biotinylated SARS-COV-2 Spike RBD Protein is expressed from HEK293 with His tag and Avi tag at the C-Terminus.It contains Arg319-Asn532.

Product Background

The spike protein (S) of coronavirus (CoV) attaches the virus to its cellular receptor, angiotensin-converting enzyme 2 (ACE2). A defined receptor-binding domain (RBD) on S mediates this interaction.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity.

Product Category

Recombinant Protein

Target

Spike RBD
Synonyms S protein RBD; S glycoprotein RBD; Spike protein RBD
Accession

Species

SARS-COV-2

Exact Sequence

Arg319-Asn532
Molecular Weight The protein has a predicted MW of 27 kDa. Due to glycosylation, the protein migrates to 36-40 kDa based on Tris-Bis PAGE result.

Activity

Immobilized Biotinylated SARS-COV-2 Spike RBD, His Tag at 1ug/ml (100ul/well) on the streptavidin precoated plate (5ug/ml). Dose response curve for Human ACE2, hFc Tag with the EC50 of 7.7ng/ml determined by ELISA. See testing image for detail.

Product Tag

C-His-Avi

Express System

HEK293
Purity > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
Endotoxin Less than 1EU per ug by the LAL method.
Form Lyophilized
Shipping Shipped at ambient temperature.
Formulation Lyophilized from 0.22um filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution Centrifuge the tube before opening. Reconstituting to a concentration more than 100 ug/ml is recommended. Dissolve the lyophilized protein in distilled water.
Stability And Storage Reconstituted protein stable at -80°C for 12 months, 4°C for 1 week. Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
Immobilized Biotinylated SARS-COV-2 Spike RBD, His Tag at 1ug/ml (100ul/well) on the streptavidin precoated plate (5ug/ml). Dose response curve for Human ACE2, hFc Tag with the EC50 of 7.7ng/ml determined by ELISA.
The purity of Biotinylated SARS-COV-2 Spike RBD is greater than 95% as determined by SEC-HPLC.
Biotinylated SARS-COV-2 Spike RBD on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.

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