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Recombinant COVID-19 Spike RBD [Fc] (DAGC089)
Recombinant COVID-19 Spike Protein Receptor Binding Domain from Human cells[Fc]
A DNA sequence encoding the receptor binding domain (RBD) of COVID-19 spike was expressed with the Fc region of mouse IgG1 at the C-terminus.
COVID-19 Spike RBD
Predicted N terminal
The recombinant receptor binding domain (RBD) of COVID-19 spike consists of 457 amino acids and predicts a molecular mass of 51.5 kDa.
<1.0 EU per μg protein as determined by the LAL method.
COVID-19; coronavirus; COVID-19 spike RBD; COVID-19 spike protein
> 95 % as determined by SDS-PAGE.
Lyophilized from sterile. Please contact us for any concerns or special requirements. Normally 5 % - 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization.
Store it under sterile conditions at -20°C to -80°C. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
A hardcopy of COA with reconstitution instruction is sent along with the products. Please refer to it for detailed information.
Shipped at ambient temperature.
The spike (S) glycoprotein of coronaviruses contains protrusions that will only bind to certain receptors on the host cell: they are essential for both host specificity and viral infectivity. The term 'peplomer' is typically used to refer to a grouping of heterologous proteins on the virus surface that function together. The spike (S) glycoprotein of coronaviruses is known to be essential in the binding of the virus to the host cell at the advent of the infection process. Most notable is severe acute respiratory syndrome (SARS). The severe acute respiratory syndrome-coronavirus (SARS-CoV) spike (S) glycoprotein alone can mediate the membrane fusion required for virus entry and cell fusion. It is also a major immunogen and a target for entry inhibitors. The SARS-CoV spike (S) protein is composed of two subunits; the S1 subunit contains a receptor-binding domain that engages with the host cell receptor angiotensin-converting enzyme 2 and the S2 subunit mediates fusion between the viral and host cell membranes. The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity, during infection with SARS-CoV.