1. Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA.
2. International AIDS Vaccine Initiative Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, CA 92037, USA.
3. Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, CA 92037, USA.
4. Department of Infectious Diseases, King’s College London School of Medicine, Guy’s Hospital, London SE1 9RT, UK.
5. International AIDS Vaccine Initiative, New York, NY 10038, USA.
6. Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
7. Beth Israel Deaconess Medical Center, Boston, MA 02215, USA.
8. Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology, and Harvard University, Boston, MA 02142, USA.
9. Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.