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《Nature，5月15日，Key residues of the receptor binding motif in the spike protein of SARS-CoV-2 that interact with ACE2 and neutralizing antibodies》

  • 来源专题：COVID-19科研动态监测
  • 编译者： zhangmin
  • 发布时间：2020-05-16

  • Key residues of the receptor binding motif in the spike protein of SARS-CoV-2 that interact with ACE2 and neutralizing antibodies

    Chunyan Yi, Xiaoyu Sun, Jing Ye, Longfei Ding, Meiqin Liu, Zhuo Yang, Xiao Lu, Yaguang Zhang, Liyang Ma, Wangpeng Gu, Aidong Qu, Jianqing Xu, Zhengli Shi, Zhiyang Ling & Bing Sun

    Cellular & Molecular Immunology (2020)

    Abstract

    Coronavirus disease 2019 (COVID-19), caused by the novel human coronavirus SARS-CoV-2, is currently a major threat to public health worldwide. The viral spike protein binds the host receptor angiotensin-converting enzyme 2 (ACE2) via the receptor-binding domain (RBD), and thus is believed to be a major target to block viral entry. Both SARS-CoV-2 and SARS-CoV share this mechanism. Here we functionally analyzed the key amino acid residues located within receptor binding motif of RBD that may interact with human ACE2 and available neutralizing antibodies. The in vivo experiments showed that immunization with either the SARS-CoV RBD or SARS-CoV-2 RBD was able to induce strong clade-specific neutralizing antibodies in mice; however, the cross-neutralizing activity was much weaker, indicating that there are distinct antigenic features in the RBDs of the two viruses. This finding was confirmed with the available neutralizing monoclonal antibodies against SARS-CoV or SARS-CoV-2.

  • 原文来源：https://www.nature.com/articles/s41423-020-0458-z
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  • 《Nature，9月17日，Receptor binding and priming of the spike protein of SARS-CoV-2 for membrane fusion》
    • 来源专题：COVID-19科研动态监测
    • 编译者：zhangmin
    • 发布时间：2020-10-13
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