S1 protein NTD;pike protein S1 NTD;etaCoV S1-NTD;OVID-19
Recombinant SARS-CoV-2 (2019-nCoV) S1 protein NTD with C-terminal human Fc tag
C-Human Fc Tag
S1 protein NTD(Ser13-Leu303) hFc(Glu99-Ala330)
The protein has a predicted molecular mass of 59.0 kDa after removal of the signal peptide. The apparent molecular mass of S1-NTD-hFc is approximately 70-100 kDa due to glycosylation.
The purity of the protein is greater than 95% as determined by SDS-PAGE and Coomassie blue staining.
|Formulation & Reconstitution||
Lyophilized from sterile PBS, pH 7.4. Normally 5 % – 8% trehalose is added as protectants before lyophilization. Please see Certificate of Analysis for specific instructions of reconstitution.
|Storage & Shipping||
Store at -20°C to -80°C for 12 months in lyophilized form. After reconstitution, if not intended for use within a month, aliquot and store at -80°C (Avoid repeated freezing and thawing). Lyophilized proteins are shipped at ambient temperature.
SARS-CoV-2 (Severe Acute Respiratory Syndrome Coronavirus 2) also known as Covid19 (2019 Novel Coronavirus) is a virus that causes illnesses ranging from the common cold to severe diseases. The spike protein is a type I transmembrane protein containing two subunits, S1 and S2. S1 mainly contains a receptor binding domain (RBD), which accounts for recognizing the cell surface receptor, ACE2. S2 contains basic elements needed for the membrane fusion. Recent publications indicate that S1-RBD domain can induce virus neutralizing-antibody and T cell response.
Research use only
SARS-CoV-2 (2019-nCoV) S1 protein NTD, hFc Tag
Price: 10μg ￥727.00 ; 50μg ￥2666.00 ; 100 μg ￥3999.00
Figure 1. SARS-CoV-2 (2019-nCoV) S1 protein NTD, hFc Tag on SDS-PAGE under reducing condition.
Figure 2. ELISA plate pre-coated by 2 μg/ml (100 μl/well) Human AXL, His tagged protein (PME100070) can bind SARS-CoV-2 (2019-nCoV) S1 protein NTD, hFc Tagged protein（PME100493） in a linear range of 0.0012-0.16 μg/ml.