1. Center for Retrovirus Research, The Ohio State University, Columbus, United States
2. Department of Veterinary Biosciences, The Ohio State University, Columbus, United States
3. Department of Chemistry, The University of Chicago, Chicago, United States
4. Department of Biochemistry and Molecular Biology, The University of Chicago, Chicago, United States
5. Institute for Biophysical Dynamics, The University of Chicago, Chicago, United States
6. Howard Hughes Medical Institute, The University of Chicago, Chicago, United States
7. Department of Microbial Infection and Immunity, The Ohio State University, Columbus, United States
8. Comprehensive Cancer Center, The Ohio State University, Columbus, United States