1. Dept. of Chemical Sciences, University of Padova, Institute of Biomolecular Chemistry, CNR, via Marzolo 1, 35131 Padova, Italy
2. Fakultät für Chemie und Biochemie, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801, Bochum, Germany
3. Dept. of Physiology, Tufts University School of Medicine, 136 Harrison Avenue, Boston, Massachusetts 02111, United States