1. Applied Chemistry Department National Yang Ming Chiao Tung University No. 1001, University Road Hsinchu City 30010 Taiwan (China
2. Institute of Biological Chemistry Academia Sinica No. 128, Academia Road Section 2 Nan-Kang 11529 Taiwan (China
3. Department of Chemistry and Institute of Biochemical Sciences National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan (China