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. 2022 Mar 19;19:50. doi: 10.1186/s12985-022-01768-4

Fig. 1.

Fig. 1

SDS-PAGE and corresponding immunoblots of the purified SARS-CoV-2 N-protein. a SDS-PAGE stained with Coomassie Brilliant blue (CBB) G-250 and b corresponding immunoblot probed with a negative serum pool (1: 10,000, Neg) and an anti-N-protein antibody (1: 50,000, anti-N) diluted in negative serum. The N-protein quantities loaded on the gel are indicated on top of each lane. M: marker proteins with the indicated molecular masses. N: N-protein