1. Innovative Genomics Institute, University of California, Berkeley, Berkeley, CA 94720, USA.
2. Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.
3. California Institute for Quantitative Biosciences, University of California, Berkeley, CA 94720, USA.
4. Molecular Biophysics and Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
5. Department of Microbiology and Immunology and Quantitative Biosciences Institute, University of California, San Francisco, San Francisco, CA 94158, USA.
6. Howard Hughes Medical Institute, University of California, Berkeley, Berkeley, CA 94720, USA.