SARS-CoV-2 Nucleocapsid protein, His Tag (NUN-C52Hr) is expressed from human 293 cells (HEK293). It contains AA Met 1 - Ala 419 (Acc ession QHO62115.1). Mutations D63G, R203M, G215C, D377Y are identified in the SARS-CoV-2 Delta Variant (B.1.617.2) a 1 * 1 mg