Controlling the SARS-CoV-2 spike glycoprotein conformation.

Controlling the SARS-CoV-2 spike glycoprotein conformation.
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DOI:
10.1038/s41594-020-0479-4
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发表时间:
2020-10
影响因子:
16.8
通讯作者:
Acharya P
Acharya P
中科院分区:
生物学1区
文献类型:
--
作者:
Henderson R;Edwards RJ;Mansouri K;Janowska K;Stalls V;Gobeil SMC;Kopp M;Li D;Parks R;Hsu AL;Borgnia MJ;Haynes BF;Acharya P

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冠状病毒刺突蛋白(S)参与病毒与宿主细胞的融合,是病毒中和的主要免疫原性靶点,也是目前许多疫苗设计工作的重点。具有移动的结构域的高度灵活的S蛋白为免疫系统提供了移动的靶标。在这里,为了更好地了解S蛋白的迁移率,我们对可用的β-CoV S蛋白结构进行了基于结构的矢量分析。尽管结构域组织总体相似,但我们发现来自不同β-CoV的S蛋白显示不同的构型。基于这一分析,我们开发了两个可溶性胞外域结构的SARS-CoV-2 S-蛋白,其中高免疫原性和移动的受体结合结构域(RBD)要么锁定在所有RBD的“向下”的位置或采取“向上”状态构象比野生型S-蛋白更容易。这些结果表明,S蛋白的构象可以通过合理的设计来控制,并为开发用于疫苗应用的工程化冠状病毒刺突蛋白提供了框架。
The coronavirus (CoV) spike (S) protein, involved in viral–host cell fusion, is the primary immunogenic target for virus neutralization and the current focus of many vaccine design efforts. The highly flexible S-protein, with its mobile domains, presents a moving target to the immune system. Here, to better understand S-protein mobility, we implemented a structure-based vector analysis of available β-CoV S-protein structures. Despite overall similarity in domain organization, we found that S-proteins from different β-CoV display distinct configurations. Based on this analysis, we developed two soluble ectodomain constructs for SARS-CoV-2 S-protein in which the highly immunogenic and mobile receptor binding domain (RBD) is either locked in the all-RBDs ‘down’ position or adopts ‘up’ state conformations more readily than wild-type S-protein. These results demonstrate that the conformation of the S-protein can be controlled via rational design and provide a framework for the development of engineered coronavirus spike proteins for vaccine applications.
DOI: 10.1084/jem.20161160
发表时间: 2017-09-04
期刊: The Journal of experimental medicine
影响因子: --
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Medina-Ramírez M;Garces F;Escolano A;Skog P;de Taeye SW;Del Moral-Sanchez I;McGuire AT;Yasmeen A;Behrens AJ;Ozorowski G;van den Kerkhof TLGM;Freund NT;Dosenovic P;Hua Y;Gitlin AD;Cupo A;van der Woude P;Golabek M;Sliepen K;Blane T;Kootstra N;van Breemen MJ;Pritchard LK;Stanfield RL;Crispin M;Ward AB;Stamatatos L;Klasse PJ;Moore JP;Nemazee D;Nussenzweig MC;Wilson IA;Sanders RW
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发表时间: 2013
期刊: PloS one
影响因子: 3.7
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DOI: 10.1126/science.abd4251
发表时间: 2020-09-25
期刊: SCIENCE
影响因子: 56.9
作者:
Cai, Yongfei;Zhang, Jun;Chen, Bing
通讯作者: Chen, Bing
DOI: 10.1038/nmeth.4169
发表时间: 2017-03-01
期刊: NATURE METHODS
影响因子: 48
作者:
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通讯作者: Brubaker, Marcus A.