1. Department of Genetics, Harvard Medical School, Boston, MA 02115
2. Department of Molecular Biology, Massachusetts General Hospital, Boston, MA 02114
3. Department of Physics, University of Colorado Boulder, Boulder, CO 80309
4. Department of Molecular, Cellular, and Developmental Biology, University of Colorado Boulder, Boulder, CO 80309
5. Center for Computational Biology, Flatiron Institute, New York, NY 10010