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      SARS-CoV-2 spike conformation determines plasma neutralizing activity elicited by a wide panel of human vaccines

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      1 , 1 , 2 , 1 , 1 , 1 , 1 , 2 , 1 , 1 , 1 , 1 , 3 , 3 , 4 , 5 , 5 , 5 , 6 , 6 , 7 , 8 , 8 , 9 , 10 , 9 , 10 , 9 , 10 , 9 , 10 , 11 , 12 , 8 , 4 , 13 , 13 , 6 , 5 , 9 , 10 , 7 , 14 , 15 , 16 , 3 , 17 , 1 , 2 , * ,
      Science Immunology
      American Association for the Advancement of Science

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          Abstract

          Numerous safe and effective COVID-19 vaccines have been developed worldwide that utilize various delivery technologies and engineering strategies. We show here that vaccines containing prefusion-stabilizing S mutations elicit antibody responses in humans with enhanced recognition of S and the S 1 subunit relative to postfusion S, as compared to vaccines lacking these mutations or natural infection. Prefusion S and S 1 antibody binding titers positively and equivalently correlated with neutralizing activity and depletion of S 1-directed antibodies completely abrogated plasma neutralizing activity. We show that neutralizing activity is almost entirely directed to the S 1 subunit and that variant cross-neutralization is mediated solely by RBD-specific antibodies. Our data provide a quantitative framework for guiding future S engineering efforts to develop vaccines with higher resilience to the emergence of variants than current technologies.

          Abstract

          Abstract

          SARS-CoV-2 S1 accounts for all vaccine-elicited plasma neutralization and cross-neutralization is mediated by RBD-specific antibodies.

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          A pneumonia outbreak associated with a new coronavirus of probable bat origin

          Since the outbreak of severe acute respiratory syndrome (SARS) 18 years ago, a large number of SARS-related coronaviruses (SARSr-CoVs) have been discovered in their natural reservoir host, bats 1–4 . Previous studies have shown that some bat SARSr-CoVs have the potential to infect humans 5–7 . Here we report the identification and characterization of a new coronavirus (2019-nCoV), which caused an epidemic of acute respiratory syndrome in humans in Wuhan, China. The epidemic, which started on 12 December 2019, had caused 2,794 laboratory-confirmed infections including 80 deaths by 26 January 2020. Full-length genome sequences were obtained from five patients at an early stage of the outbreak. The sequences are almost identical and share 79.6% sequence identity to SARS-CoV. Furthermore, we show that 2019-nCoV is 96% identical at the whole-genome level to a bat coronavirus. Pairwise protein sequence analysis of seven conserved non-structural proteins domains show that this virus belongs to the species of SARSr-CoV. In addition, 2019-nCoV virus isolated from the bronchoalveolar lavage fluid of a critically ill patient could be neutralized by sera from several patients. Notably, we confirmed that 2019-nCoV uses the same cell entry receptor—angiotensin converting enzyme II (ACE2)—as SARS-CoV.
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            SARS-CoV-2 Cell Entry Depends on ACE2 and TMPRSS2 and Is Blocked by a Clinically Proven Protease Inhibitor

            Summary The recent emergence of the novel, pathogenic SARS-coronavirus 2 (SARS-CoV-2) in China and its rapid national and international spread pose a global health emergency. Cell entry of coronaviruses depends on binding of the viral spike (S) proteins to cellular receptors and on S protein priming by host cell proteases. Unravelling which cellular factors are used by SARS-CoV-2 for entry might provide insights into viral transmission and reveal therapeutic targets. Here, we demonstrate that SARS-CoV-2 uses the SARS-CoV receptor ACE2 for entry and the serine protease TMPRSS2 for S protein priming. A TMPRSS2 inhibitor approved for clinical use blocked entry and might constitute a treatment option. Finally, we show that the sera from convalescent SARS patients cross-neutralized SARS-2-S-driven entry. Our results reveal important commonalities between SARS-CoV-2 and SARS-CoV infection and identify a potential target for antiviral intervention.
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              UCSF Chimera--a visualization system for exploratory research and analysis.

              The design, implementation, and capabilities of an extensible visualization system, UCSF Chimera, are discussed. Chimera is segmented into a core that provides basic services and visualization, and extensions that provide most higher level functionality. This architecture ensures that the extension mechanism satisfies the demands of outside developers who wish to incorporate new features. Two unusual extensions are presented: Multiscale, which adds the ability to visualize large-scale molecular assemblies such as viral coats, and Collaboratory, which allows researchers to share a Chimera session interactively despite being at separate locales. Other extensions include Multalign Viewer, for showing multiple sequence alignments and associated structures; ViewDock, for screening docked ligand orientations; Movie, for replaying molecular dynamics trajectories; and Volume Viewer, for display and analysis of volumetric data. A discussion of the usage of Chimera in real-world situations is given, along with anticipated future directions. Chimera includes full user documentation, is free to academic and nonprofit users, and is available for Microsoft Windows, Linux, Apple Mac OS X, SGI IRIX, and HP Tru64 Unix from http://www.cgl.ucsf.edu/chimera/. Copyright 2004 Wiley Periodicals, Inc.
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                Author and article information

                Contributors
                Role: ConceptualizationRole: Formal analysisRole: InvestigationRole: MethodologyRole: Project administrationRole: SupervisionRole: ValidationRole: VisualizationRole: Writing - original draftRole: Writing - review & editing
                Role: InvestigationRole: ResourcesRole: Validation
                Role: ConceptualizationRole: MethodologyRole: SupervisionRole: Writing - review & editing
                Role: Data curationRole: Formal analysisRole: InvestigationRole: MethodologyRole: ValidationRole: Visualization
                Role: ConceptualizationRole: Formal analysisRole: InvestigationRole: ResourcesRole: ValidationRole: Visualization
                Role: Data curationRole: ResourcesRole: Writing - original draft
                Role: InvestigationRole: MethodologyRole: ResourcesRole: Writing - review & editing
                Role: Resources
                Role: Data curationRole: Formal analysisRole: InvestigationRole: MethodologyRole: Project administrationRole: ResourcesRole: ValidationRole: Visualization
                Role: Resources
                Role: InvestigationRole: Resources
                Role: InvestigationRole: MethodologyRole: Resources
                Role: InvestigationRole: ResourcesRole: VisualizationRole: Writing - review & editing
                Role: InvestigationRole: Project administrationRole: SupervisionRole: VisualizationRole: Writing - review & editing
                Role: MethodologyRole: ResourcesRole: SupervisionRole: ValidationRole: Writing - review & editing
                Role: MethodologyRole: ResourcesRole: Writing - review & editing
                Role: ConceptualizationRole: Data curationRole: Funding acquisitionRole: InvestigationRole: Project administrationRole: ResourcesRole: Supervision
                Role: ConceptualizationRole: ResourcesRole: Writing - review & editing
                Role: ConceptualizationRole: Formal analysisRole: Funding acquisitionRole: Project administrationRole: ResourcesRole: SupervisionRole: ValidationRole: VisualizationRole: Writing - original draft
                Journal
                Sci Immunol
                Sci Immunol
                sciimmunol
                immunology
                Science Immunology
                American Association for the Advancement of Science
                2470-9468
                10 November 2022
                10 November 2022
                : eadf1421
                Affiliations
                [ 1 ]Department of Biochemistry, University of Washington, Seattle, WA 98195, USA.
                [ 2 ]Howard Hughes Medical Institute, University of Washington, Seattle, WA 98195, USA.
                [ 3 ]Division of Allergy and Infectious Diseases, University of Washington, Seattle, WA 98195, USA.
                [ 4 ]Instituto de Investigaciones Biomédicas en Retrovirus y SIDA (INBIRS), Facultad de Medicina, Buenos Aires C1121ABG, Argentina.
                [ 5 ]McKetta Department of Chemical Engineering, The University of Texas at Austin, Austin, TX.
                [ 6 ]Institute for Research in Biomedicine, Università della Svizzera Italiana, 6500 Bellinzona, Switzerland.
                [ 7 ]Center for Emerging and Re-emerging Infectious Diseases, Division of Allergy and Infectious Diseases, Department of Medicine, University of Washington School of Medicine, Seattle, WA 98195, USA.
                [ 8 ]Department of Paediatrics and Child Health, and Biological & Biomedical Sciences, Aga Khan University, Karachi 74800, Pakistan.
                [ 9 ]Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA 92037, USA.
                [ 10 ]Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, San Diego, La Jolla, CA UC92037, USA.
                [ 11 ]Vir Biotechnology, San Francisco, CA 94158, USA.
                [ 12 ]Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, WA, USA.
                [ 13 ]Infectious Diseases Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy.
                [ 14 ]Department of Chemistry, Stony Brook University, Stony Brook, New York 11794, United States.
                [ 15 ]Laufer Center for Physical and Quantitative Biology, Stony Brook University, Stony Brook, New York 11794, United States.
                [ 16 ]INGM, Istituto Nazionale Genetica Molecolare “Romeo ed Enrica Invernizzi”, 20122 Milan, Italy.
                [ 17 ]Humabs Biomed SA, a subsidiary of Vir Biotechnology, 6500 Bellinzona, Switzerland.
                Author notes
                [* ]Corresponding author. Email: dveesler@ 123456uw.edu
                Author information
                https://orcid.org/0000-0003-3590-9727
                https://orcid.org/0000-0002-2786-6256
                https://orcid.org/0000-0002-9636-8330
                https://orcid.org/0000-0003-0007-2226
                https://orcid.org/0000-0002-2260-2577
                https://orcid.org/0000-0001-8165-6332
                https://orcid.org/0000-0002-7889-8960
                https://orcid.org/0000-0001-9351-5799
                https://orcid.org/0000-0002-6877-1341
                https://orcid.org/0000-0002-6457-4869
                https://orcid.org/0000-0003-1706-9461
                https://orcid.org/0000-0003-1475-659X
                https://orcid.org/0000-0003-4026-5655
                https://orcid.org/0000-0002-4750-9686
                https://orcid.org/0000-0001-9440-4601
                https://orcid.org/0000-0001-6587-4794
                https://orcid.org/0000-0001-6141-2015
                https://orcid.org/0000-0003-0024-3355
                https://orcid.org/0000-0001-8502-9600
                https://orcid.org/0000-0002-5797-1364
                https://orcid.org/0000-0002-6019-8675
                Article
                adf1421
                10.1126/sciimmunol.adf1421
                9765460
                36356052
                fbf1c9bd-92d8-4ede-bf27-48a999d8f27f
                Copyright © 2022 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY).

                This is an open-access article distributed under the terms of the Creative Commons Attribution license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

                History
                : 01 October 2022
                : 07 November 2022
                Funding
                Funded by: FundRef http://dx.doi.org/10.13039/100000057, National Institute of General Medical Sciences;
                Award ID: R01GM120553
                Funded by: FundRef http://dx.doi.org/10.13039/100000060, National Institute of Allergy and Infectious Diseases;
                Award ID: DP1AI158186
                Funded by: FundRef http://dx.doi.org/10.13039/100000060, National Institute of Allergy and Infectious Diseases;
                Award ID: HHSN272201700059C
                Funded by: FundRef http://dx.doi.org/10.13039/100000060, National Institute of Allergy and Infectious Diseases;
                Award ID: U01 AI151698
                Funded by: FundRef http://dx.doi.org/10.13039/100010269, Wellcome;
                Award ID: OPP1156262
                Funded by: FundRef http://dx.doi.org/10.13039/501100013854, Alzheimer Nadační Fond;
                Funded by: National Institute of Health;
                Award ID: S10OD032290
                Funded by: National Institute of Health;
                Award ID: U01 AI151698
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