1. Division of Vaccine Discovery, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037, USA.
2. Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, CA 92037, USA.
3. International AIDS Vaccine Initiative Neutralizing Antibody Center, The Scripps Research Institute, La Jolla, CA 92037, USA.
4. Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
5. Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA 92037, USA.
6. Vaccine and Immunotherapy Center, The Wistar Institute, Philadelphia, PA 19104, USA.
7. Emory Vaccine Center, Yerkes National Primate Research Center, Emory University, Atlanta, GA 30329, USA.
8. Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA.
9. Skaggs Institute for Chemical Biology, The Scripps Research Institute, La Jolla, CA 92037, USA.
10. Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02129, USA.
11. Division of Infectious Diseases, Department of Medicine, University of California San Diego School of Medicine, La Jolla, CA 92093, USA.