1. National Institute of Biological Sciences, Beijing, Beijing 102206, China
2. Graduate Program
in Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
3. Key
Lab of Intelligent Information Processing of Chinese Academy of Sciences
(CAS), Institute of Computing Technology of CAS, University of CAS, Beijing 100049, China
4. Ministry
of Education Protein Science Laboratory, Center for Structural Biology,
School of Life Sciences, and Department of Chemistry, Tsinghua University, Beijing 100084, China