1. Department of Chemistry, University of California, Berkeley, California 94720, United States
2. Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States
3. Department of Cell Biology, Yale School of Medicine, New Haven, Connecticut 06510, United States
4. Department of Biomedical Engineering, Yale University, New Haven, Connecticut 06511, United States
5. Nanobiology Institute, Yale University, West Haven, Connecticut 06516, United States
6. Kavli Institute for Neuroscience, Yale School of Medicine, New Haven, Connecticut 06510, United States
7. Department of Molecular and Cellular Biology, University of California, Berkeley, California 94720, United States
8. California Institute for Quantitative Biosciences (QB3), University of California, Berkeley, California 94720, United States
9. Department of Molecular, Cellular, and Developmental Biology, Yale University, New Haven, Connecticut 06520, United States