1. Biomolecular Mass Spectrometry and Proteomics Group, Bijvoet Center for Biomolecular Research, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
2. Netherlands Proteomics Center, Padualaan 8, 3584 CH Utrecht, The Netherlands
3. Hubrecht Institute, KNAW and University Medical Center Utrecht, Uppsalalaan 8, 3584 CT Utrecht, Netherlands
4. Centre for Biomedical Genetics, The Netherlands