1. Institut de Génomique Fonctionnelle de Lyon (IGFL), Ecole Normale Supérieure de Lyon, CNRS UMR 5242; Université Claude Bernard Lyon 1, Lyon France
2. Center for Molecular and Biomolecular Informatics, Nijmegen Center for Molecular Life Sciences; Radboud UMC, P.O. Box 9101 6500 HB Nijmegen The Netherlands
3. Max Planck Institute for Molecular Genetics; Ihnestrasse 63-73 Berlin 14195 Germany
4. NIZO food research; P.O. Box 20, 6710 BA Ede The Netherlands
5. Host Microbe Interactomics Group, Wageningen University; De Elst 1 6708WD Wageningen The Netherlands