1. Department of Molecular Oncology, Graduate School of Medicine, Chiba University , Chiba-shi, Chiba 260-8670 , Japan
2. Laboratory of Chromatin Structure and Function, Institute for Quantitative Biosciences, The University of Tokyo , Bunkyo-ku , Tokyo 113-0032 , Japan
3. Institute for Advanced Biosciences, Keio University , Tsuruoka , Yamagata 997-0017 , Japan
4. Department of Chemistry, Graduate School of Science, Chiba University , Chiba-shi, Chiba 263-8522 , Japan
5. Health and Disease Omics Center, Chiba University , Chiba-shi, Chiba 260-8670 , Japan