Biotinylated SARS-CoV-2 Spike Trimer, His,Avitag (SPN-C82Ek) is the ectodomain of SARS-CoV-2 spike protein which contains AA Val 16 - Pro 1213 (Accession # QHD43416.1). The mutations C136F, Y144del, R190S, D215G, LA242-243del, Y449H, E484K, N501Y, D6 1 * 200 µG