1. Wyss Institute for Biologically Inspired Engineering, Harvard University, 3 Blackfan Circle, 5th Floor, Boston, MA 02115, USA
2. Department of Systems Biology, Harvard Medical School, 200 Longwood Avenue, Alpert 536, Boston, MA 02115, USA
3. Systems and Synthetic Biology, Wageningen University, Dreijenplein 10, 6703 HB Wageningen, The Netherlands
4. Program in Biomedical Informatics, Harvard Medical School, Boston, MA 02115, USA
5. Synthetic Genomics, Inc., 11149 North Torrey Pines Road, La Jolla, CA 92037, USA
6. Synthetic Biology and Bioenergy Group, J. Craig Venter Institute, 4120 Capricorn Lane, La Jolla, CA 92037, USA