SARS-COV-2 Spike S1 NTD Protein (COV-VM1SN)

  • Express System: HEK293
  • Product Tag: C-His-Flag
  • Purity: > 95% as determined by Tris-Bis PAGE;> 95% as determined by HPLC
  • Exact Sequence: Val16-Ser305

Catalog: COV-VM1SN


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Product Description Recombinant SARS-COV-2 Spike S1 NTD Protein is expressed from HEK293 with His tag and Flag tag at the C-Terminus.It contains Val16-Ser305.

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


Spike S1 NTD
Synonyms S1 protein NTD,Spike glycoprotein Subunit1 NTD,S glycoprotein Subunit1 NTD,Spike protein S1 NTD

Gene/Protein ID




Exact Sequence

Molecular Weight The protein has a predicted MW of 35 kDa. Due to glycosylation, the protein migrates to 55-70 kDa based on Tris-Bis PAGE result.

Product Tag


Express System

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.
The purity of SARS-COV-2 Spike S1 NTD is greater than 95% as determined by SEC-HPLC.
SARS-COV-2 Spike S1 NTD on Tris-Bis PAGE under reduced condition. The purity is greater than 95%.

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