1. Cytoskeleton Dynamics and Motility Group, LEBS, CNRS, 91190 Gif-sur-Yvette, France
2. Marine Biological Laboratory, Woods Hole, MA 02543
3. Department of Chemical and Biological Engineering, Princeton University, Princeton, NJ 08544
4. Department of Physics, Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, NJ 08544
5. School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138
6. Courant Institute of Mathematical Sciences, New York University, New York, NY 10012