id author title date pages extension mime words sentences flesch summary cache txt cord-256572-sqz8yc7b Huo, Jiandong Neutralization of SARS-CoV-2 by destruction of the prefusion Spike 2020-05-06 .txt text/plain 5378 313 59 The causal coronavirus (SARS-CoV-2) binds host cells via a trimeric Spike whose receptor binding domain (RBD) recognizes angiotensin-converting enzyme 2 (ACE2), initiating conformational changes that drive membrane fusion. We find that monoclonal antibody CR3022 binds the RBD tightly, neutralising SARS-CoV-2 and report the crystal structure at 2.4 Å of the Fab/RBD complex. Potent nanomolar affinity neutralising human monoclonal antibodies against the SARS-CoV RBD have been identified that attach at the ACE2 receptor binding site (including M396, CR3014 and 80R (Ter Meulen et al., 2006; Sui et al., 2004; Zhu et al., 2007) ). We determined the crystal structure of the SARS-CoV-2 RBD-CR3022 Fab complex (see Methods and Table S3 ) to investigate the relationship between the binding epitopes of ACE2 and CR3022. Full interpretation of the detailed interactions between CR3022 and the RBD was enabled by the second crystal form which diffracted to high resolution, 2.4 Å, and the structure of which was refined to give an R-work/R-free of 0.213/0.239 and good stereochemistry (Methods, Table S3, Figure S5 ). ./cache/cord-256572-sqz8yc7b.txt ./txt/cord-256572-sqz8yc7b.txt