Sequence KD (nM) Method References SARS-2 S 14.7 SPR Wrapp et al., 2020 SARS-2 S 11.2 SPR Lei et al., 2020 SARS-2 S20–685 (S1) 94.6 SPR Wang et al., 2020 SARS-2 S319–541 (RBD) 133.3 SPR Wang et al., 2020 SARS-2 S319–541 (RBD) 4.7 SPR Lan et al., 2020 SARS-2 S319–529 44.2 SPR Shang et al., 2020b SARS-2 S319–591 34.6 Biolayer interferometry Wrapp et al., 2020 SARS-2 S328–533 1.2 Biolayer interferometry Walls et al., 2020