Affiliation: | a National Research Laboratory for Metabolic Checkpoint, Departments of Biomedical Sciences and Biochemistry and Molecular Biology, Cancer Research Institute, Seoul National University College of Medicine, Seoul 110-799, Republic of Korea b Department of Molecular Biology, College of Medicine, Sungkyunkwan University, Suwon 440-746, Republic of Korea c National Research Laboratory for Chromatin Dynamics, College of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea |