1. Department of Biological SciencesSeoul National University Seoul 08826 Republic of Korea
2. Department of Applied ChemistryInstitute of Natural ScienceGlobal Center for Pharmaceutical Ingredient MaterialsKyung Hee University Yongin 17104 Republic of Korea
3. Department of Biomedical Science and TechnologyKyung Hee Medical Science Research InstituteKyung Hee University Seoul 02453 Republic of Korea