1. Department of Life Science, Gwangju Institute of Science and Technology (GIST),
Gwangju 500-712, Republic of Korea
2. Department of Chemistry, Chonnam National University, Gwangju 500-757, Republic
of Korea
3. College of Pharmacy, Chung-Ang University, Seoul 156-756, Republic of Korea
4. Department of Biochemistry, Kitasato University, School of Medicine, Kanagawa 252-0374,
Japan
5. Molecular Physiology
and Biophysics
Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892,
United States