@article{c1beffab3ae04dd6b05f252133e3cbea,
title = "Antibody-mediated broad sarbecovirus neutralization through ACE2 molecular mimicry",
abstract = "Understanding broadly neutralizing sarbecovirus antibody responses is key to developing countermeasures against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants and future zoonotic sarbecoviruses. We describe the isolation and characterization of a human monoclonal antibody, designated S2K146, that broadly neutralizes viruses belonging to SARS-CoV- and SARS-CoV-2-related sarbecovirus clades, which use angiotensin-converting enzyme 2 (ACE2) as an entry receptor. Structural and functional studies show that most of the virus residues that directly bind S2K146 are also involved in binding to ACE2. This allows the antibody to potently inhibit receptor attachment. S2K146 protects against SARS-CoV-2 Beta variant challenge in hamsters, and viral passaging experiments reveal a high barrier for emergence of escape mutants, making it a good candidate for clinical development. The conserved ACE2-binding residues present a site of vulnerability that might be leveraged for developing vaccines eliciting broad sarbecovirus immunity.",
author = "Park, {Young Jun} and {De Marco}, Anna and Starr, {Tyler N.} and Zhuoming Liu and Dora Pinto and Walls, {Alexandra C.} and Fabrizia Zatta and Zepeda, {Samantha K.} and Bowen, {John E.} and Sprouse, {Kaitlin R.} and Anshu Joshi and Martina Giurdanella and Barbara Guarino and Julia Noack and Rana Abdelnabi and {Caroline Foo}, {Shi Yan} and Rosen, {Laura E.} and Lempp, {Florian A.} and Fabio Benigni and Gyorgy Snell and Johan Neyts and Whelan, {Sean P.J.} and Virgin, {Herbert W.} and Bloom, {Jesse D.} and Davide Corti and Pizzuto, {Matteo Samuele} and David Veesler",
note = "Funding Information: S2K146 therefore overcomes the mutational plasticity of the RBM, which is implicated in immune evasion, by targeting residues required for binding to the ACE2 receptor. This is supported by S2K146 recognition of the reconstructed RBD ancestor of SARS-CoV and Publisher Copyright: {\textcopyright} 2022 American Association for the Advancement of Science. All rights reserved.",
year = "2022",
month = jan,
day = "28",
doi = "10.1126/science.abm8143",
language = "English",
volume = "375",
journal = "Science",
issn = "0036-8075",
number = "6579",
}