1. Molecular Spectroscopy Group, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B-2020 Antwerp Belgium
2. Ghent Quantum Chemistry Group, Department of Inorganic and Physical Chemistry; Ghent University; Krijgslaan 281 (S3), B-9000 Ghent Belgium
3. Biomolecular and Analytical Mass Spectrometry, Department of Chemistry; University of Antwerp; Groenenborgerlaan 171, B-2020 Antwerp Belgium
4. Laboratory of Medical Biochemistry, Department of Pharmaceutical Sciences; University of Antwerp; Universiteitsplein 1, B-2610 Antwerp Belgium
5. Astbury Centre for Structural Molecular Biology; University of Leeds, School of Chemistry; Leeds LS2 9JT UK
6. School of Molecular and Cellular Biology, The Faculty of Biological Sciences; University of Leeds; Leeds LS2 9JT UK