National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
GM120553
米国
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
Seattle Structural Genomics Center for Infectious Diseases (SSGCID)
米国
引用
ジャーナル: Cell / 年: 2020 タイトル: Mapping Neutralizing and Immunodominant Sites on the SARS-CoV-2 Spike Receptor-Binding Domain by Structure-Guided High-Resolution Serology. 著者: Luca Piccoli / Young-Jun Park / M Alejandra Tortorici / Nadine Czudnochowski / Alexandra C Walls / Martina Beltramello / Chiara Silacci-Fregni / Dora Pinto / Laura E Rosen / John E Bowen / ...著者: Luca Piccoli / Young-Jun Park / M Alejandra Tortorici / Nadine Czudnochowski / Alexandra C Walls / Martina Beltramello / Chiara Silacci-Fregni / Dora Pinto / Laura E Rosen / John E Bowen / Oliver J Acton / Stefano Jaconi / Barbara Guarino / Andrea Minola / Fabrizia Zatta / Nicole Sprugasci / Jessica Bassi / Alessia Peter / Anna De Marco / Jay C Nix / Federico Mele / Sandra Jovic / Blanca Fernandez Rodriguez / Sneha V Gupta / Feng Jin / Giovanni Piumatti / Giorgia Lo Presti / Alessandra Franzetti Pellanda / Maira Biggiogero / Maciej Tarkowski / Matteo S Pizzuto / Elisabetta Cameroni / Colin Havenar-Daughton / Megan Smithey / David Hong / Valentino Lepori / Emiliano Albanese / Alessandro Ceschi / Enos Bernasconi / Luigia Elzi / Paolo Ferrari / Christian Garzoni / Agostino Riva / Gyorgy Snell / Federica Sallusto / Katja Fink / Herbert W Virgin / Antonio Lanzavecchia / Davide Corti / David Veesler / 要旨: Analysis of the specificity and kinetics of neutralizing antibodies (nAbs) elicited by SARS-CoV-2 infection is crucial for understanding immune protection and identifying targets for vaccine design. ...Analysis of the specificity and kinetics of neutralizing antibodies (nAbs) elicited by SARS-CoV-2 infection is crucial for understanding immune protection and identifying targets for vaccine design. In a cohort of 647 SARS-CoV-2-infected subjects, we found that both the magnitude of Ab responses to SARS-CoV-2 spike (S) and nucleoprotein and nAb titers correlate with clinical scores. The receptor-binding domain (RBD) is immunodominant and the target of 90% of the neutralizing activity present in SARS-CoV-2 immune sera. Whereas overall RBD-specific serum IgG titers waned with a half-life of 49 days, nAb titers and avidity increased over time for some individuals, consistent with affinity maturation. We structurally defined an RBD antigenic map and serologically quantified serum Abs specific for distinct RBD epitopes leading to the identification of two major receptor-binding motif antigenic sites. Our results explain the immunodominance of the receptor-binding motif and will guide the design of COVID-19 vaccines and therapeutics.
B: Light chain of Fab domain of monoclonal antibody S309 A: Heavy chain of Fab domain of monoclonal antibody S309 D: Light chain of Fab domain of monoclonal antibody S2H14 C: Heavy chain of Fab domain of monoclonal antibody S2H14 L: Light chain of Fab domain of monoclonal antibody S304 H: Heavy chain of Fab domain of monoclonal antibody S304 R: Spike protein S1 ヘテロ分子
解像度: 2.65→47.5 Å / Cor.coef. Fo:Fc: 0.919 / Cor.coef. Fo:Fc free: 0.899 / SU B: 53.058 / SU ML: 0.439 / SU R Cruickshank DPI: 0.9723 / 交差検証法: THROUGHOUT / σ(F): 0 / ESU R: 0.972 / ESU R Free: 0.367 / 立体化学のターゲット値: MAXIMUM LIKELIHOOD 詳細: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS U VALUES : WITH TLS ADDED
Rfactor
反射数
%反射
Selection details
Rfree
0.2881
2586
4.7 %
RANDOM
Rwork
0.2578
-
-
-
obs
0.2591
52027
98.46 %
-
溶媒の処理
イオンプローブ半径: 0.8 Å / 減衰半径: 0.8 Å / VDWプローブ半径: 1.2 Å / 溶媒モデル: MASK