SARS-CoV-2(2) antibodies(1) serum ELISA.(1) SARS-CoV(1) Clustering(1) cysteine-stabilized α-helix and β-sheet fold(1) Angiotensin-converting enzyme II(1) Neutralizing(1) FuncLib(1) antibody discovery(1) defensin(1) Vaccine(1) Serological assay(1) deep mutational scanning(1) Optimized(1) H1N1(1) scorpion sodium channel toxin.(1) directed evolution(1) epitope mapping(1) immunogen design.(1) Influenza(1) antiviral peptide(1) yeast surface display.(1) phage display(1) Rosetta(1) humanized(1) H3N2(1)