1. Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan 11529, Republic of China
2. Chemical Biology and Molecular Biophysics Program, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan 11529, Republic of China
3. Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan 30013, Republic of China
4. Molecular and Cell Biology Program, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan 11529, Republic of China
5. Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan 11490, Republic of China