1. Department of Molecular and Cellular Biochemistry, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do, 200-702, South Korea
2. Department of Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon-do, 200-702, South Korea
3. Department of Pathology, School of Medicine, The Catholic University of Korea, Seoul 137-701, Korea
4. Department of and Life Sciences, College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon-do, 200-702, South Korea
5. Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon-do, 200-702, South Korea
6. Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, 120-752, South Korea