1. Department of Biophysics and Structural Biology
2. Institute of Basic Medical Sciences
3. Chinese Academy of Medical Sciences & School of Basic Medicine
4. Peking Union Medical College
5. Beijing 100005
6. Central Iron and Steel Research Institute
7. Beijing,100081
8. China
9. Analytical Instrumentation Center
10. College of Chemistry and Molecular Engineering
11. Peking University
12. Beijing