SARS-CoV-2 Spike Trimer, His Tag (SPN-C52Hu) is the ectodomain of SARS-CoV-2 S protein which contains AA Val 16 - Pro 1213 (Accessio n # QHD43416.1). The mutations T19R, T95I, Y145H, EF156-157del, R158G, A222V, L452R, T478K, D614G, P681R, D950N were 1 * 500 µG