| Autor: |
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 |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Science advances. 8(40) |
| ISSN: |
2375-2548 |
| Popis: |
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 50 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. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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