1. Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, United States
2. Biology Department, Rosenstiel Basic Medical Science Research Center, Brandeis University, Waltham, United States
3. California Institute for Quantitative Biosciences, University of California, Berkeley, Berkeley, United States
4. Department of Chemistry, University of California, Berkeley, Berkeley, United States
5. Molecular Biophysics & Integrated Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, United States