1. Tsinghua-Peking Center for Life Sciences & School of Pharmaceutical Sciences, Tsinghua University, Haidian District, Beijing 100084, People’s Republic of China
2. Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, 2A Nanwei Road, Xuanwu District, Beijing 100050, People’s Republic of China
3. Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, People’s Republic of China
4. Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Kumamoto 860-8556, Japan
5. Department of Infectious Disease, Peking Union Medical College Hospital and AIDS Research Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100071, People’s Republic of China