1. Wyss Institute for Biologically Inspired Engineering Harvard University Boston MA 02115 USA
2. John A. Paulson School of Engineering and Applied Sciences and Department of Physics Harvard University Cambridge MA 02138 USA
3. Department of Chemistry and Chemical Biology Harvard University Cambridge MA 02138 USA
4. Beijing National Laboratory for Molecular Sciences (BNLMS) MOE Key Laboratory of Bioorganic Chemistry and Molecular Engineering College of Chemistry and Molecular Engineering Peking University Beijing 100871 China
5. Center for Systems Biology Massachusetts General Hospital Harvard Medical School Boston MA 02114 USA
6. Department of Molecular and Human Genetics Baylor College of Medicine Houston TX 77030 USA
7. Department of Systems Biology Harvard Medical School Boston MA 02115 USA