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-Structure paper
タイトル | Cryo-electron microscopy structures of the N501Y SARS-CoV-2 spike protein in complex with ACE2 and 2 potent neutralizing antibodies. |
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ジャーナル・号・ページ | PLoS Biol, Vol. 19, Issue 4, Page e3001237, Year 2021 |
掲載日 | 2021年4月29日 |
著者 | Xing Zhu / Dhiraj Mannar / Shanti S Srivastava / Alison M Berezuk / Jean-Philippe Demers / James W Saville / Karoline Leopold / Wei Li / Dimiter S Dimitrov / Katharine S Tuttle / Steven Zhou / Sagar Chittori / Sriram Subramaniam / |
PubMed 要旨 | The recently reported "UK variant" (B.1.1.7) of SARS-CoV-2 is thought to be more infectious than previously circulating strains as a result of several changes, including the N501Y mutation. We ...The recently reported "UK variant" (B.1.1.7) of SARS-CoV-2 is thought to be more infectious than previously circulating strains as a result of several changes, including the N501Y mutation. We present a 2.9-Å resolution cryo-electron microscopy (cryo-EM) structure of the complex between the ACE2 receptor and N501Y spike protein ectodomains that shows Y501 inserted into a cavity at the binding interface near Y41 of ACE2. This additional interaction provides a structural explanation for the increased ACE2 affinity of the N501Y mutant, and likely contributes to its increased infectivity. However, this mutation does not result in large structural changes, enabling important neutralization epitopes to be retained in the spike receptor binding domain. We confirmed this through biophysical assays and by determining cryo-EM structures of spike protein ectodomains bound to 2 representative potent neutralizing antibody fragments. |
リンク | PLoS Biol / PubMed:33914735 / PubMed Central |
手法 | EM (単粒子) |
解像度 | 2.66 - 3.32 Å |
構造データ | EMDB-23872, PDB-7mjg: EMDB-23873, PDB-7mjh: EMDB-23874, PDB-7mji: EMDB-23875, PDB-7mjj: EMDB-23876, PDB-7mjk: EMDB-23877, PDB-7mjl: EMDB-23878, PDB-7mjm: EMDB-23879, PDB-7mjn: |
化合物 | ChemComp-NAG: |
由来 |
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キーワード | VIRAL PROTEIN / SARS-CoV-2 / glycoprotein / fusion protein / VH ab8 / neutralizing antibody / Viral Protein/Immune System / Viral Protein-Immune System complex / Fab ab1 / ACE2 / VIRAL PROTEIN/Hydrolase / VIRAL PROTEIN-Hydrolase complex |