1. Texas Therapeutics Institute, The Brown Foundation Institute of Molecular Medicine, University of Texas Health Science Center at Houston, Houston, TX, USA
2. State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Institute of Diagnostics and Vaccine Development in Infectious Diseases, Xiamen University, Xiamen, China
3. Merck Research Laboratories, Merck & Co., Inc., Kenilworth, NJ, USA
4. Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA, USA
5. Sealy Center for Vaccine Development, University of Texas Medical Branch, Galveston, TX, USA
6. Center for HIV/AIDS Vaccine Immunology and Immunogen Discovery, The Scripps Research Institute, La Jolla, CA, USA
7. Department of Integrative Structural and Computational Biology, The Scripps Research Institute, La Jolla, CA, USA