1. Institute of Molecular Systems Biology, ETH Zurich, 8093 Zurich, Switzerland.
2. Theoretical Biophysics, Humboldt University Berlin, 10115 Berlin, Germany.
3. INRA, UMR1319 Micalis, Jouy-en-Josas F78350, France.
4. Department of Biosystems Science and Engineering, ETH Zurich, 4058 Basel, Switzerland.
5. Institute for Microbiology, Ernst-Moritz-Arndt-University Greifswald, 17487 Greifswald, Germany.
6. Smurfit Institute of Genetics, Trinity College Dublin, Dublin 2, Ireland.
7. INRA, Mathématique Informatique et Génome UR1077, 78350 Jouy-en-Josas, France.
8. Department of Medical Microbiology, University of Groningen and University Medical Center Groningen, 9700 RB Groningen, Netherlands.
9. Institut Pasteur, Systems Biology Lab, Department of Genomes and Genetics, and CNRS URA 2171, F-75015 Paris, France.
10. School of Environmental and Life Sciences, University of Newcastle, Callaghan, NSW 2308, Australia.
11. Sysdiag CNRS Bio-Rad UMR 3145, Cap Delta/Parc Euromédecine, 34184 Montpellier Cedex 4, France.
12. York Structural Biology Laboratory, Department of Chemistry, University of York, York YO10 5YW, UK.
13. Institute, of Cell and Molecular Biosciences, Centre for Bacterial Cell Biology, University of Newcastle upon Tyne, Newcastle upon Tyne, NE2 4AX, UK.
14. Center for Information Sciences and Databases, Department of Biosystems Science and Engineering, ETH Zurich, 4058 Basel, Switzerland.
15. Center for Biological Sequence Analysis, Department of Systems Biology, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark.