1. Laboratory of Chemical Biology and Institute of Complex Molecular Systems (ICMS), Department of Biomedical Engineering, Technische Universiteit Eindhoven, Den Dolech 2, 5612 AZ Eindhoven (The Netherlands) http://www.tue.nl/cb
2. Stratingh Institue for Chemistry, University of Groningen, Nijenborgh 7, 9747AG Groningen (The Netherlands)
3. Bijvoet Center for Biomolecular Research, NMR Spectroscopy, Utrecht University, Padualaan 8, 3584CH Utrecht (The Netherlands)