1. Key Laboratory of Structure-Based Drug Design & Discovery
2. Ministry of Education
3. Shenyang Pharmaceutical University
4. Shenyang 110016
5. PR China
6. School of Life Sciences and Biotechnology
7. Dalian University
8. Dalian 116622
9. Institute of Chinese Materia Medica
10. China Academy of Chinese Medical Sciences
11. Beijing 100700
12. Tianjin State Key Laboratory of Modern Chinese Medicine
13. Institute of Traditional Chinese Medicine
14. Tianjin University of Traditional Chinese Medicine
15. Tianjin 300193