SARS-CoV-2 Spike NTD, His Tag (SPD-C5229) is expressed from human 293 cells (HEK293). It contains AA Ser 13 - Leu 303 (Accession # Q HD43416.1). The mutations C136F, Y144del, R190S, D215G, LA242-243del were identified in the SARS-CoV-2 variant C.1.2. 1 * 100 µG