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10.1016/j.cell.2021.03.028

http://scihub22266oqcxt.onion/10.1016/j.cell.2021.03.028
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33761326!7962585!33761326
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suck abstract from ncbi


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pmid33761326      Cell 2021 ; 184 (9): 2332-2347.e16
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  • N-terminal domain antigenic mapping reveals a site of vulnerability for SARS-CoV-2 #MMPMID33761326
  • McCallum M; De Marco A; Lempp FA; Tortorici MA; Pinto D; Walls AC; Beltramello M; Chen A; Liu Z; Zatta F; Zepeda S; di Iulio J; Bowen JE; Montiel-Ruiz M; Zhou J; Rosen LE; Bianchi S; Guarino B; Fregni CS; Abdelnabi R; Foo SC; Rothlauf PW; Bloyet LM; Benigni F; Cameroni E; Neyts J; Riva A; Snell G; Telenti A; Whelan SPJ; Virgin HW; Corti D; Pizzuto MS; Veesler D
  • Cell 2021[Apr]; 184 (9): 2332-2347.e16 PMID33761326show ga
  • The SARS-CoV-2 spike (S) glycoprotein contains an immunodominant receptor-binding domain (RBD) targeted by most neutralizing antibodies (Abs) in COVID-19 patient plasma. Little is known about neutralizing Abs binding to epitopes outside the RBD and their contribution to protection. Here, we describe 41 human monoclonal Abs (mAbs) derived from memory B cells, which recognize the SARS-CoV-2 S N-terminal domain (NTD) and show that a subset of them neutralize SARS-CoV-2 ultrapotently. We define an antigenic map of the SARS-CoV-2 NTD and identify a supersite (designated site i) recognized by all known NTD-specific neutralizing mAbs. These mAbs inhibit cell-to-cell fusion, activate effector functions, and protect Syrian hamsters from SARS-CoV-2 challenge, albeit selecting escape mutants in some animals. Indeed, several SARS-CoV-2 variants, including the B.1.1.7, B.1.351, and P.1 lineages, harbor frequent mutations within the NTD supersite, suggesting ongoing selective pressure and the importance of NTD-specific neutralizing mAbs for protective immunity and vaccine design.
  • |Animals[MESH]
  • |Antibodies, Monoclonal/chemistry/immunology[MESH]
  • |Antibodies, Neutralizing/immunology[MESH]
  • |Antigens, Viral/*immunology[MESH]
  • |COVID-19/immunology/virology[MESH]
  • |Cricetinae[MESH]
  • |Epitope Mapping[MESH]
  • |Genetic Variation[MESH]
  • |Models, Molecular[MESH]
  • |Mutation/genetics[MESH]
  • |Neutralization Tests[MESH]
  • |Protein Domains[MESH]
  • |RNA, Viral/genetics[MESH]


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