Biotinylated SARS-COV-2 Spike S Trimer Protein (COV-VM4SSB)

  • Express System: HEK293
  • Product Tag: C-His-Avi
  • Purity: > 95% as determined by Tris-Bis PAGE
  • Biotinylated: yes
  • Activity: Immobilized Biotinylated SARS-COV-2 Spike S (Trimer) , His Tag at 2ug/ml (100ul/well) on the streptavidin precoated plate (5ug/ml). Dose response curve for Human ACE2, hFc Tag with the EC50 of 5.9ng/ml determined by ELISA. See testing image for detail.
  • Exact Sequence: Val16-Glu1188

Catalog: COV-VM4SSB

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Product Description Recombinant Biotinylated SARS-COV-2 Spike S Trimer Protein is expressed from HEK293 with His tag and Avi tag at the C-Terminus.It contains Val16-Glu1188.

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 S Trimer
Synonyms S protein; Spike glycoprotein; S glycoprotein; COVID-19

Gene/Protein ID

 QHD43416.1

Species

 SARS-COV-2

Exact Sequence

 Val16-Glu1188
Molecular Weight The protein has a predicted MW of 136.6 kDa. Due to glycosylation, the protein migrates to 140-170 kDa based on Tris-Bis PAGE result.

Activity

 Immobilized Biotinylated SARS-COV-2 Spike S (Trimer) , His Tag at 2ug/ml (100ul/well) on the streptavidin precoated plate (5ug/ml). Dose response curve for Human ACE2, hFc Tag with the EC50 of 5.9ng/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
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 S (Trimer) , His Tag at 2ug/ml (100ul/well) on the streptavidin precoated plate (5ug/ml). Dose response curve for Human ACE2, hFc Tag with the EC50 of 5.9ng/ml determined by ELISA.
Biotinylated SARS-COV-2 Spike S Trimer on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.

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