SARS-CoV-2 Nucleocapsid protein (D63G, R203M, D377Y), His Tag (NUN-C52Hs) is expressed from human 293 cells (HEK293). It contains AA Met 1 - Ala 419 (Accession # QHO62115.1 (D63G, R203M, D377Y )). The mutations (D63G, R203M, D377Y) were identified i 1 * 1 mg