TY - JOUR
T1 - Antibody targeting of conserved sites of vulnerability on the SARS-CoV-2 spike receptor-binding domain
AU - Sankhala, Rajeshwer S.
AU - Dussupt, Vincent
AU - Chen, Wei Hung
AU - Bai, Hongjun
AU - Martinez, Elizabeth J.
AU - Jensen, Jaime L.
AU - Rees, Phyllis A.
AU - Hajduczki, Agnes
AU - Chang, William C.
AU - Choe, Misook
AU - Yan, Lianying
AU - Sterling, Spencer L.
AU - Swafford, Isabella
AU - Kuklis, Caitlin
AU - Soman, Sandrine
AU - King, Jocelyn
AU - Corbitt, Courtney
AU - Zemil, Michelle
AU - Peterson, Caroline E.
AU - Mendez-Rivera, Letzibeth
AU - Townsley, Samantha M.
AU - Donofrio, Gina C.
AU - Lal, Kerri G.
AU - Tran, Ursula
AU - Green, Ethan C.
AU - Smith, Clayton
AU - de Val, Natalia
AU - Laing, Eric D.
AU - Broder, Christopher C.
AU - Currier, Jeffrey R.
AU - Gromowski, Gregory D.
AU - Wieczorek, Lindsay
AU - Rolland, Morgane
AU - Paquin-Proulx, Dominic
AU - van Dyk, Dewald
AU - Britton, Zachary
AU - Rajan, Saravanan
AU - Loo, Yueh Ming
AU - McTamney, Patrick M.
AU - Esser, Mark T.
AU - Polonis, Victoria R.
AU - Michael, Nelson L.
AU - Krebs, Shelly J.
AU - Modjarrad, Kayvon
AU - Joyce, M. Gordon
N1 - Publisher Copyright:
© 2023 The Author(s)
PY - 2024/2/1
Y1 - 2024/2/1
N2 - Given the continuous emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VoCs), immunotherapeutics that target conserved epitopes on the spike (S) glycoprotein have therapeutic advantages. Here, we report the crystal structure of the SARS-CoV-2 S receptor-binding domain (RBD) at 1.95 Å and describe flexibility and distinct conformations of the angiotensin-converting enzyme 2 (ACE2)-binding site. We identify a set of SARS-CoV-2-reactive monoclonal antibodies (mAbs) with broad RBD cross-reactivity including SARS-CoV-2 Omicron subvariants, SARS-CoV-1, and other sarbecoviruses and determine the crystal structures of mAb-RBD complexes with Ab246 and CR3022 mAbs targeting the class IV site, WRAIR-2134, which binds the recently designated class V epitope, and WRAIR-2123, the class I ACE2-binding site. The broad reactivity of class IV and V mAbs to conserved regions of SARS-CoV-2 VoCs and other sarbecovirus provides a framework for long-term immunotherapeutic development strategies.
AB - Given the continuous emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern (VoCs), immunotherapeutics that target conserved epitopes on the spike (S) glycoprotein have therapeutic advantages. Here, we report the crystal structure of the SARS-CoV-2 S receptor-binding domain (RBD) at 1.95 Å and describe flexibility and distinct conformations of the angiotensin-converting enzyme 2 (ACE2)-binding site. We identify a set of SARS-CoV-2-reactive monoclonal antibodies (mAbs) with broad RBD cross-reactivity including SARS-CoV-2 Omicron subvariants, SARS-CoV-1, and other sarbecoviruses and determine the crystal structures of mAb-RBD complexes with Ab246 and CR3022 mAbs targeting the class IV site, WRAIR-2134, which binds the recently designated class V epitope, and WRAIR-2123, the class I ACE2-binding site. The broad reactivity of class IV and V mAbs to conserved regions of SARS-CoV-2 VoCs and other sarbecovirus provides a framework for long-term immunotherapeutic development strategies.
UR - http://www.scopus.com/inward/record.url?scp=85182905679&partnerID=8YFLogxK
U2 - 10.1016/j.str.2023.11.015
DO - 10.1016/j.str.2023.11.015
M3 - Article
C2 - 38157856
AN - SCOPUS:85182905679
SN - 0969-2126
VL - 32
SP - 131-147.e7
JO - Structure
JF - Structure
IS - 2
ER -