SARS-CoV-2 S protein (N501Y,D614G), His Tag (SPN-C52Hp) is expressed from human 293 cells (HEK293). It contains AA Val 16 - Pro 1213 (Accession # QHD43416.1 (N501Y, D614G)). The N501Y/D614G mutations were identified in multiple SARS-CoV-2 variants w 1 * 50 µG