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Alexandra C. Walls
Researcher at University of Washington
Publications - 96
Citations - 22743
Alexandra C. Walls is an academic researcher from University of Washington. The author has contributed to research in topics: Antibody & Biology. The author has an hindex of 32, co-authored 69 publications receiving 11885 citations. Previous affiliations of Alexandra C. Walls include University of Massachusetts Medical School.
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Journal ArticleDOI
Structure, Function, and Antigenicity of the SARS-CoV-2 Spike Glycoprotein.
Alexandra C. Walls,Young-Jun Park,M. Alejandra Tortorici,M. Alejandra Tortorici,Abigail Wall,Andrew T. McGuire,Andrew T. McGuire,David Veesler +7 more
TL;DR: It is demonstrating that cross-neutralizing antibodies targeting conserved S epitopes can be elicited upon vaccination, and it is shown that SARS-CoV-2 S uses ACE2 to enter cells and that the receptor-binding domains of Sars- coV- 2 S and SARS S bind with similar affinities to human ACE2, correlating with the efficient spread of SATS among humans.
Journal ArticleDOI
Cross-neutralization of SARS-CoV-2 by a human monoclonal SARS-CoV antibody.
Dora Pinto,Young-Jun Park,Martina Beltramello,Alexandra C. Walls,M. Alejandra Tortorici,M. Alejandra Tortorici,Siro Bianchi,Stefano Jaconi,Katja Culap,Fabrizia Zatta,Anna De Marco,Alessia Peter,Barbara Guarino,Roberto Spreafico,Elisabetta Cameroni,James Brett Case,Rita E. Chen,Colin Havenar-Daughton,Gyorgy Snell,Amalio Telenti,Herbert W. Virgin,Antonio Lanzavecchia,Michael S. Diamond,Katja Fink,David Veesler,Davide Corti +25 more
TL;DR: Several monoclonal antibodies that target the S glycoprotein of SARS-CoV-2, which was identified from memory B cells of an individual who was infected with severe acute respiratory syndrome coronavirus (SARS- coV) in 2003, and one antibody (named S309) potently neutralization, which may limit the emergence of neutralization-escape mutants.
Journal ArticleDOI
Deep Mutational Scanning of SARS-CoV-2 Receptor Binding Domain Reveals Constraints on Folding and ACE2 Binding.
Tyler N. Starr,Allison J. Greaney,Allison J. Greaney,Sarah K Hilton,Sarah K Hilton,Daniel Ellis,Katharine H.D. Crawford,Katharine H.D. Crawford,Adam S. Dingens,Mary Jane Navarro,John E. Bowen,M. Alejandra Tortorici,Alexandra C. Walls,Neil P. King,David Veesler,Jesse D. Bloom,Jesse D. Bloom,Jesse D. Bloom +17 more
TL;DR: It is found that a substantial number of mutations to the RBD are well tolerated or even enhance ACE2 binding, including at ACE2 interface residues that vary across SARS-related coronaviruses.
Journal ArticleDOI
Mapping Neutralizing and Immunodominant Sites on the SARS-CoV-2 Spike Receptor-Binding Domain by Structure-Guided High-Resolution Serology.
Luca Piccoli,Young-Jun Park,M. Alejandra Tortorici,M. Alejandra Tortorici,Nadine Czudnochowski,Alexandra C. Walls,Martina Beltramello,Chiara Silacci-Fregni,Dora Pinto,Laura E. Rosen,John E. Bowen,Oliver J. Acton,Stefano Jaconi,Barbara Guarino,Andrea Minola,Fabrizia Zatta,Nicole Sprugasci,Jessica Bassi,Alessia Peter,Anna De Marco,Jay C. Nix,Federico Mele,Sandra Jovic,Blanca Fernandez Rodriguez,Sneha V. Gupta,Feng Jin,Giovanni Piumatti,Giovanni Piumatti,Giorgia Lo Presti,Alessandra Franzetti Pellanda,Maira Biggiogero,Maciej Tarkowski,Matteo Samuele Pizzuto,Elisabetta Cameroni,Colin Havenar-Daughton,Megan Smithey,David K. Hong,Valentino Lepori,Emiliano Albanese,Alessandro Ceschi,Alessandro Ceschi,Enos Bernasconi,Luigia Elzi,Paolo Ferrari,Christian Garzoni,Agostino Riva,G. Snell,Federica Sallusto,Katja Fink,Herbert W. Virgin,Antonio Lanzavecchia,Davide Corti,David Veesler +52 more
TL;DR: It is found that both the magnitude of Ab responses to SARS-CoV-2 spike (S) and nucleoprotein and nAb titers correlate with clinical scores, and the immunodominance of the receptor-binding motif will guide the design of COVID-19 vaccines and therapeutics.
Journal ArticleDOI
N-terminal domain antigenic mapping reveals a site of vulnerability for SARS-CoV-2.
Matthew McCallum,Anna De Marco,Florian A. Lempp,M. Alejandra Tortorici,M. Alejandra Tortorici,Dora Pinto,Alexandra C. Walls,Martina Beltramello,Alexander Chen,Zhuoming Liu,Fabrizia Zatta,Samantha K Zepeda,Julia di Iulio,John E. Bowen,Martin Montiel-Ruiz,Jiayi Zhou,Laura E. Rosen,Siro Bianchi,Barbara Guarino,Chiara Silacci Fregni,Rana Abdelnabi,Shi Yan Caroline Foo,Paul W. Rothlauf,Louis Marie Bloyet,Fabio Benigni,Elisabetta Cameroni,Johan Neyts,Agostino Riva,Gyorgy Snell,Amalio Telenti,Sean P. J. Whelan,Herbert W. Virgin,Davide Corti,Matteo Samuele Pizzuto,David Veesler +34 more
TL;DR: In this article, 41 human monoclonal antibodies derived from memory B cells were used to identify the SARS-CoV-2 S N-terminal domain (NTD).