Computational Biology, Stowers Institute for Medical Research, Kansas City, MO, USA.|Department of Cell Biology, 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Tianjin Key Laboratory of Medical Epigenetics, Tianjin Medical University, Tianjin, China.|Computational Biology, Stowers Institute for Medical Research, Kansas City, MO, USA.|Computational Biology, Stowers Institute for Medical Research, Kansas City, MO, USA.