1. Dipartimento di Scienze Chimiche, Università degli Studi di Padova, Padova 35131,
Italy
2. Department of Physiology
and
Biophysics, Case Western Reserve University, Cleveland, Ohio 44106-7169, United States
3. Methodologie RMN, Faculté
des Sciences et Techniques, Nancy-Université, Nancy 54500, France
4. The Mina & Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat-Gan 52900, Israel