Fig. 1From: Preexisting vs. de novo antibodies against SARS-CoV-2 in individuals without or with virus infection: impact on antibody therapy, vaccine research and serological testingSerological assays using various His-tagged SARS-CoV-2 antignes. The boundaries of the substrates (S, RBD and N) are indicated by the amino acid numbers from N- and C-termini, respectivelyBack to article page