Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China.|Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA.|Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China.|Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA.|Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA.