Department of Bioengineering, Rice University, Houston, Texas, United States of America.|Department of Microbiology and Molecular Genetics, University of Texas - Houston Medical School, Houston, Texas, United States of America.|Department of Physics and the Lewis-Sigler Institute of Integrative Genomics, Princeton University, Princeton, New Jersey, United States of America.|Department of Physics and the Lewis-Sigler Institute of Integrative Genomics, Princeton University, Princeton, New Jersey, United States of America.|Department of Microbiology and Molecular Genetics, University of Texas - Houston Medical School, Houston, Texas, United States of America.|Department of Physics and the Lewis-Sigler Institute of Integrative Genomics, Princeton University, Princeton, New Jersey, United States of America.|Department of Bioengineering, Rice University, Houston, Texas, United States of America.