1. Department of Biochemistry, Groningen Biomolecular Sciences and Biotechnology Institute, Netherlands Proteomics Centre, and Zernike Institute for Advanced Materials, University of Groningen, Groningen, The Netherlands
2. Systems Bioinformatics IBIVU, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
3. Laboratory of Microbiology, Wageningen University and Research Centre, Wageningen, The Netherlands