1. The Ragon Institute of Mass General, MIT, and Harvard, Cambridge, MA 02139, USA.
2. Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA.
3. IAVI Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, CA 92037, USA.
4. Center for HIV/AIDS Vaccine Development, The Scripps Research Institute, La Jolla, CA 92037, USA.
5. Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
6. Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA.
7. Moderna Inc., Cambridge, MA 02139, USA.
8. Department of Biology, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.