1. Department of Biochemistry, Tohoku University Graduate School of Medicine, Sendai, Japan;
2. Graduate School of Information Sciences, Tohoku University, Sendai, Japan;
3. Division of Immunology, Department of Molecular Microbiology and Immunology, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan; and
4. Division of Cell Proliferation, United Centers for Advanced Research and Translational Medicine, and
5. Center for Regulatory Epigenome and Diseases, Tohoku University Graduate School of Medicine, Sendai, Japan