1. Institute of Biophysical Chemistry, Goethe University Frankfurt and Center for Biomolecular
Magnetic Resonance, Max-von-Laue Str. 9, 60438 Frankfurt am Main,
Germany
2. Life Sciences Institute,
Departments
of Medicinal Chemistry, Chemistry, and Microbiology and Immunology, University of Michigan, Ann Arbor, Michigan 48109,
United States
3. Frankfurt
Institute for Advanced
Studies, Goethe University Frankfurt, Ruth-Moufang-Str.
1, 60438 Frankfurt am Main, Germany
4. Center for Priority Areas, Tokyo Metropolitan University, 1-1 minami-ohsawa, Hachioji,
Tokyo 192-0397, Japan