1. Department of Molecular Biology and Microbial Food Safety, Swammerdam Institute for Life Sciences, University of Amsterdam Faculty of Science, Science Park 904, 1098 XH Amsterdam, The Netherlands
2. Department of Mass Spectrometry of Bio-Macromolecules, Swammerdam Institute for Life Sciences, University of Amsterdam Faculty of Science, Science Park 904, 1098 XH Amsterdam, The Netherlands