1. Department
of Geobiology, Geoscience Centre, University of Göttingen, Goldschmidtstraße 3, 37077 Göttingen, Germany
2. Department
of NMR Based Structural Biology, Max Planck Institute for Biophysical Chemistry, Am Fassberg 11, 37077 Göttingen, Germany
3. Institute
of Organic Chemistry, University of Linz, Altenbergerstraße 69, 4040 Linz, Austria