1. Bioorganic Chemistry Laboratory, Center for Design and Applications of Molecular Catalysts, Department of Chemistry and Chemical Engineering, Inha University, Incheon 402-751, South Korea
2. Department of Biomedical Sciences, College of Medicine, Inha University, Incheon 402-751, South Korea
3. Department of Microbiology, College of Medicine, Inha University, Incheon 402-751, South Korea