1. Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot 7610001, Israel
2. Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
3. Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544, USA
4. Department of Physics, University of California, Santa Barbara, Santa Barbara, CA 93106, USA
5. Laboratory for Cell-Free Protein Synthesis, RIKEN Center for Biosystems Dynamics Research, Suita, Osaka 565-0874, Japan