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-Structure paper
Title | Potent neutralization of SARS-CoV-2 variants of concern by an antibody with an uncommon genetic signature and structural mode of spike recognition. |
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Journal, issue, pages | Cell Rep, Vol. 37, Issue 1, Page 109784, Year 2021 |
Publish date | Oct 5, 2021 |
Authors | Kevin J Kramer / Nicole V Johnson / Andrea R Shiakolas / Naveenchandra Suryadevara / Sivakumar Periasamy / Nagarajan Raju / Jazmean K Williams / Daniel Wrapp / Seth J Zost / Lauren M Walker / Steven C Wall / Clinton M Holt / Ching-Lin Hsieh / Rachel E Sutton / Ariana Paulo / Rachel S Nargi / Edgar Davidson / Benjamin J Doranz / James E Crowe / Alexander Bukreyev / Robert H Carnahan / Jason S McLellan / Ivelin S Georgiev / |
PubMed Abstract | The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) lineages that are more transmissible and resistant to currently approved antibody therapies poses a considerable ...The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) lineages that are more transmissible and resistant to currently approved antibody therapies poses a considerable challenge to the clinical treatment of coronavirus disease (COVID-19). Therefore, the need for ongoing discovery efforts to identify broadly reactive monoclonal antibodies to SARS-CoV-2 is of utmost importance. Here, we report a panel of SARS-CoV-2 antibodies isolated using the linking B cell receptor to antigen specificity through sequencing (LIBRA-seq) technology from an individual who recovered from COVID-19. Of these antibodies, 54042-4 shows potent neutralization against authentic SARS-CoV-2 viruses, including variants of concern (VOCs). A cryoelectron microscopy (cryo-EM) structure of 54042-4 in complex with the SARS-CoV-2 spike reveals an epitope composed of residues that are highly conserved in currently circulating SARS-CoV-2 lineages. Further, 54042-4 possesses uncommon genetic and structural characteristics that distinguish it from other potently neutralizing SARS-CoV-2 antibodies. Together, these findings provide motivation for the development of 54042-4 as a lead candidate to counteract current and future SARS-CoV-2 VOCs. |
External links | Cell Rep / PubMed:34592170 / PubMed Central |
Methods | EM (single particle) |
Resolution | 2.69 Å |
Structure data | EMDB-25574, PDB-7t01: |
Source |
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Keywords | VIRAL PROTEIN / SARS-CoV-2 / 54042-4 / RBD / Fab / complex / viral protein-immune system |