Extended Data Fig. 2: Binding specificity of 476 isolated antibodies.
Binding specificity was analyzed by ELISA against recombinant S, S1, RBD, and S2 proteins of wild-type SARS-CoV-2, and S1 or S proteins of SARS-CoV-1 and MERS-CoV. Each antibody was tested in duplicates and presented as such on the same row. The binding activity is colored from red to green, with red being the strongest and green just above the optical density (OD) cut-off value of 0.2, at least 3−fold higher than the background. The negative ones are in light grey with OD450nm < 0.2.