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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Nat+Struct+Mol+Biol 2020 ; 27 (10): 950-958 Nephropedia Template TP
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Structural basis for the neutralization of SARS-CoV-2 by an antibody from a convalescent patient #MMPMID32737466
Zhou D; Duyvesteyn HME; Chen CP; Huang CG; Chen TH; Shih SR; Lin YC; Cheng CY; Cheng SH; Huang YC; Lin TY; Ma C; Huo J; Carrique L; Malinauskas T; Ruza RR; Shah PNM; Tan TK; Rijal P; Donat RF; Godwin K; Buttigieg KR; Tree JA; Radecke J; Paterson NG; Supasa P; Mongkolsapaya J; Screaton GR; Carroll MW; Gilbert-Jaramillo J; Knight ML; James W; Owens RJ; Naismith JH; Townsend AR; Fry EE; Zhao Y; Ren J; Stuart DI; Huang KA
Nat Struct Mol Biol 2020[Oct]; 27 (10): 950-958 PMID32737466show ga
The COVID-19 pandemic has had an unprecedented health and economic impact and there are currently no approved therapies. We have isolated an antibody, EY6A, from an individual convalescing from COVID-19 and have shown that it neutralizes SARS-CoV-2 and cross-reacts with SARS-CoV-1. EY6A Fab binds the receptor binding domain (RBD) of the viral spike glycoprotein tightly (K(D) of 2 nM), and a 2.6-A-resolution crystal structure of an RBD-EY6A Fab complex identifies the highly conserved epitope, away from the ACE2 receptor binding site. Residues within this footprint are key to stabilizing the pre-fusion spike. Cryo-EM analyses of the pre-fusion spike incubated with EY6A Fab reveal a complex of the intact spike trimer with three Fabs bound and two further multimeric forms comprising the destabilized spike attached to Fab. EY6A binds what is probably a major neutralizing epitope, making it a candidate therapeutic for COVID-19.