1. Department of Computer Science, University of California, Irvine, CA 92617, USA
2. Institute for Genomics and Bioinformatics, University of California, Irvine, CA 92617, USA
3. Institute of Molecular Medicine, McGovern Medical School, The University of Texas Health Science Center, Houston, TX 77030, USA
4. Center for Epigenetics and Metabolism, School of Medicine, University of California, Irvine, CA 92617, USA
5. Department of Biochemistry, University of California, Irvine, CA 92617, USA