1. Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan R.O.C.
2. Chemical Biology and Molecular Biophysics Program, Taiwan International Graduate Program, Academia Sinica, Taipei 115, Taiwan R.O.C.
3. Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan R.O.C.
4. Institute of Chemistry, Academia Sinica, Taipei 115, Taiwan R.O.C.
5. Departments of Chemical and Biomolecular Engineering and Chemistry and Biochemistry, University of California, Los Angeles, California 90095, United States