1. Department of Biochemistry, University of Zurich, CH-8057 Zurich, Switzerland.
2. Department of Molecular and Cell Biology, University of California, Berkeley, CA 94720, USA.
3. Howard Hughes Medical Institute (HHMI), University of California, Berkeley, CA 94720, USA.
4. California Institute for Quantitative Biosciences, University of California, Berkeley, CA 94720, USA.
5. Department of Chemistry, University of California, Berkeley, CA 94720, USA.
6. Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, Umeå S-90187, Sweden.
7. Department of Regulation in Infection Biology, Helmholtz Centre for Infection Research, D-38124 Braunschweig, Germany.
8. Hannover Medical School, D-30625 Hannover, Germany.
9. Life Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
10. Physical Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.