《BioRxiv,3月31日,Computational Design of Peptides to Block Binding of the SARS-CoV-2 Spike Protein to Human ACE2》

  • 来源专题:COVID-19科研动态监测
  • 编译者: zhangmin
  • 发布时间:2020-04-01
  • Computational Design of Peptides to Block Binding of the SARS-CoV-2 Spike Protein to Human ACE2

    Xiaoqiang Huang, Robin Pearce, Yang Zhang

    doi: https://doi.org/10.1101/2020.03.28.013607

    Abstract

    The outbreak of COVID-19 has now become a global pandemic and it continues to spread rapidly worldwide, severely threatening lives and economic stability. Making the problem worse, there is no specific antiviral drug that can be used to treat COVID-19 to date. SARS-CoV-2 initiates its entry into human cells by binding to angiotensin-converting enzyme 2 (hACE2) via the receptor binding domain (RBD) of its spike protein. Therefore, molecules that can block SARS-CoV-2 from binding to hACE2 may potentially prevent the virus from entering human cells and serve as an effective antiviral drug. Based on this idea, we designed a series of peptides that can strongly bind to SARS-CoV-2 RBD in computational experiments.

    *注,本文为预印本论文手稿,是未经同行评审的初步报告,其观点仅供科研同行交流,并不是结论性内容,请使用者谨慎使用.

  • 原文来源:https://www.biorxiv.org/content/10.1101/2020.03.28.013607v1
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    • 1.时间:2020年3月31日 2.机构或团队:美国密歇根大学 3.事件概要: 3月31日,bioRxiv预印本平台发表了来自美国密歇根大学研究团队的题为“Computational Design of Peptides to Block Binding of the SARS-CoV-2 Spike Protein to Human ACE2”的文章。该文章指出,能够阻断SARS-CoV-2与hACE2结合的分子可能会阻止病毒进入人体细胞,并作为有效的抗病毒药物。基于这个想法,该研究设计了一系列可以在计算实验中与SARS-CoV-2 RBD牢固结合的肽。 研究人员首先用甘氨酸连接剂将hACE2的两个片段(a.a.a.22-44和351-357)连接,构建了一个31-mer多肽支架,然后重新设计多肽序列,以增强其与SARS-CoV-2 RBD的结合亲和力。该研究指出,与同类的计算设计型研究相比,该研究的蛋白质设计打分函数EvoEF2准确性更高;与自然型相比,顶层设计的多肽结合剂对hACE2的结合力要强得多。该研究认为,广泛而详细的计算分析支持了设计的结合剂的高合理性,不仅重述了关键的原生结合相互作用而且还引入了新的有利的相互作用来增强结合。 *注,本文为预印本论文手稿,是未经同行评审的初步报告,其观点仅供科研同行交流,并不是结论性内容,请使用者谨慎使用。 4.附件: 原文链接https://www.biorxiv.org/content/10.1101/2020.03.28.013607v1