National Institutes of Health/National Institute of Biomedical Imaging and Bioengineering (NIH/NIBIB)
3U54EB027690-04S
米国
引用
ジャーナル: Sci Adv / 年: 2022 タイトル: Structural insights for neutralization of Omicron variants BA.1, BA.2, BA.4, and BA.5 by a broadly neutralizing SARS-CoV-2 antibody. 著者: Sanjeev Kumar / Anamika Patel / Lilin Lai / Chennareddy Chakravarthy / Rajesh Valanparambil / Elluri Seetharami Reddy / Kamalvishnu Gottimukkala / Meredith E Davis-Gardner / Venkata Viswanadh ...著者: Sanjeev Kumar / Anamika Patel / Lilin Lai / Chennareddy Chakravarthy / Rajesh Valanparambil / Elluri Seetharami Reddy / Kamalvishnu Gottimukkala / Meredith E Davis-Gardner / Venkata Viswanadh Edara / Susanne Linderman / Kaustuv Nayak / Kritika Dixit / Pragati Sharma / Prashant Bajpai / Vanshika Singh / Filipp Frank / Narayanaiah Cheedarla / Hans P Verkerke / Andrew S Neish / John D Roback / Grace Mantus / Pawan Kumar Goel / Manju Rahi / Carl W Davis / Jens Wrammert / Sucheta Godbole / Amy R Henry / Daniel C Douek / Mehul S Suthar / Rafi Ahmed / Eric Ortlund / Amit Sharma / Kaja Murali-Krishna / Anmol Chandele / 要旨: In this study, by characterizing several human monoclonal antibodies (mAbs) isolated from single B cells of the COVID-19-recovered individuals in India who experienced ancestral Wuhan strain (WA.1) ...In this study, by characterizing several human monoclonal antibodies (mAbs) isolated from single B cells of the COVID-19-recovered individuals in India who experienced ancestral Wuhan strain (WA.1) of SARS-CoV-2 during early stages of the pandemic, we found a receptor binding domain (RBD)-specific mAb 002-S21F2 that has rare gene usage and potently neutralized live viral isolates of SARS-CoV-2 variants including Alpha, Beta, Gamma, Delta, and Omicron sublineages (BA.1, BA.2, BA.2.12.1, BA.4, and BA.5) with IC ranging from 0.02 to 0.13 μg/ml. Structural studies of 002-S21F2 in complex with spike trimers of Omicron and WA.1 showed that it targets a conformationally conserved epitope on the outer face of RBD (class 3 surface) outside the ACE2-binding motif, thereby providing a mechanistic insights for its broad neutralization activity. The discovery of 002-S21F2 and the broadly neutralizing epitope it targets have timely implications for developing a broad range of therapeutic and vaccine interventions against SARS-CoV-2 variants including Omicron sublineages.