1. Center for Infection Biology, School of Basic Medical Sciences, Tsinghua University, Beijing 100084, China.
2. SXMU-Tsinghua Collaborative Innovation Center for Frontier Medicine, Shanxi Medical University, Taiyuan, Shanxi Province 030001, China.
3. Beijing Frontier Research Center for Biological Structure, Tsinghua University, Beijing 100084, China.
4. Tsinghua-Peking Center for Life Sciences, Beijing 100084, China.