Anti-SARS-CoV-2 Nucleocapsid Antibody, Mouse IgG1 (AS47) (NUN-S47) was produced from a hybridoma resulting from the fusion of a mouse myeloma with B cells obtained from a mouse immunized with purified recombinant SARS-CoV-2 Nucleocapsid protein. The IgG fraction of the cell culture supernatant was purified by Protein A affinity chromatography. ELISA test validated that this antibody can bind multiple N protein variants (Cat. No. NUN-C52H8) with similar affinity as compared to the wild type N protein (Cat. No. NUN-C5227) .