1. School of Life Science and Technology; ShanghaiTech University; 100 Haike Road Shanghai 201210 People's Republic of China
2. State Key Laboratory of Drug Research; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; 555 Zu Chong Zhi Road Shanghai 201203 People's Republic of China
3. Key Laboratory of Receptor Research; Shanghai Institute of Materia Medica; Chinese Academy of Sciences; 555 Zu Chong Zhi Road Shanghai 201203 People's Republic of China