1. Department
of Chemistry and Department of Medicinal Chemistry, Purdue University, 560
Oval Drive, West Lafayette, Indiana 47907, United States
2. Department
of Biology, Molecular Basis of Disease, Georgia State University, Atlanta, Georgia 30303, United States
3. Departments
of Infectious Diseases and Hematology, Kumamoto University Graduate School of Medical Sciences, Kumamoto 860-8556, Japan
4. Center
for Clinical Sciences, National Center for Global Health and Medicine, Tokyo 162-8655, Japan
5. Department
of Medical Technology, Kumamoto Health Science University, Kumamoto 861-5598, Japan
6. Experimental
Retrovirology Section, HIV and AIDS Malignancy Branch, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States