Recombinant SARS-CoV-2 Spike protein S1 subunit, encompassing amino acids 16-685. This protein corresponds to SARS-CoV-2 Variant B.1.617.2.1 also known as variant Delta Plus originally identified in India, and contains mutations T19R, G142D, R158G, L452R, T478K D614G and P681R as well as deletion E156/F157. It was constructed with a C-terminal Avi-Tag followed by a His-tag (6xHis). The protein was enzymatically biotinylated using the Avi-Tag and affinity purified. HiP indicates a high purity protein (>=90% pure) and less than 10% aggregation as measured by gel filtration. Constructs: Spike S1 (B.1.617.2.1 Variant) (16-685-Avi-His)-(Biotin) (SARS-CoV-2)
Immunogen Region
16-685
Tag
C-terminal Avi-His-tag
Formulation
8 mM phosphate pH 7.4, 110 mM NaCl, 2.2 mM KCl, 20% glycerol