1 CAS Key Laboratory of Infection and Immunity, National Laboratory of Macromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.
2 University of Chinese Academy of Sciences, Beijing, China.
3 Changping Laboratory, Beijing, China.
4 Biomedical Pioneering Innovation Center (BIOPIC), Peking University, Beijing, China.
5 College of Chemistry and Molecular Engineering, Peking University, Beijing, China.
6 Peking-Tsinghua Center for Life Sciences, Tsinghua University, Beijing, China.
7 School of Biological Sciences, University of Cambridge, Cambridge, UK.
8 CAS Key Laboratory of Infection and Immunity, National Laboratory of Macromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China. xiangxi@ibp.ac.cn.
9 University of Chinese Academy of Sciences, Beijing, China. xiangxi@ibp.ac.cn.