1. Biophysics Department, Center for Human and Molecular Biology, Universität des Saarlandes, Homburg/Saar, Germany.
2. Faculty of Chemistry/Biochemistry, University of Kaiserslautern, Kaiserslautern, Germany.
3. Institute of Biochemistry, University of Cologne, Cologne, Germany.
4. Department of Cellular Biochemistry, University of Kaiserslautern, Kaiserslautern, Germany.