1. Department of Pathology and Cell Biology, Columbia University Irving Medical Center, New York, New York, USA
2. Medical Scientist Training Program, Columbia University Irving Medical Center, New York, New York, USA
3. Aaron Diamond AIDS Research Center, Columbia University Irving Medical Center, New York, New York, USA
4. Department of Microbiology and Immunology, Columbia University Irving Medical Center, New York, New York, USA
5. Department of Biological Sciences, Columbia University, New York, New York, USA
6. Department of Chemistry, Columbia University, New York, New York, USA
7. WuXi AppTec, Cambridge, Massachusetts, USA