1. Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
2. Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
3. Department of Brain and Cognitive Sciences, Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
4. BioMicroCenter, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
5. Broad Institute of MIT and Harvard, Cambridge, Massachusetts 02139, United States
6. Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States