The buried S2 apex of SARS-CoV-2 spike elicits an immunodominant germline-restricted public antibody response
Suncheol Park, Jacob Mischka, Nisreen M.A. Okba, Anass Abbad, Meng Yuan, Komal Srivastava, Charles Gleason, Lubbertus C. F. Mulder, Jeffrey Copps, Katrina Saam, Sandhya Bangaru, Florian Krammer, Ian A. Wilson, Viviana R. Simon, Andrew B. Ward
This study identifies an immunodominant S2 apex epitope in SARS-CoV-2 that elicits a public antibody clonotype, highlighting its role as a barrier to universal coronavirus vaccines.
bioRxiv · Feb 19, 2026 · PreprintImmunology