1. Institute of Biological Chemistry, Academia Sinica, 128, Academia Road Sec. 2, Nankang, Taipei 115, Taiwan
2. Chemical Biology and Molecular Biophysics, Taiwan International Graduate Program, Academia Sinica, 128, Academia Road Sec. 2, Nankang, Taipei 115, Taiwan
3. Department of Chemistry, National Tsing Hua University, 101, Kuang-Fu Road, Sec. 2, Hsinchu 300, Taiwan
4. Department of Molecular Biology and Biophysics, University of Connecticut Health Center, Farmington, Connecticut 06030, United States
5. Institute of Biochemical Sciences, National Taiwan University, 1 Roosevelt Road Sec. 4, Taipei 106, Taiwan