1. Institute of Applied Synthetic Chemistry
2. TU Wien
3. 1060 Wien
4. Austria
5. Molecular Enzymology Group
6. University of Groningen
7. 9747 AG Groningen
8. The Netherlands
9. Institute of Biochemistry
10. Dept. of Biotechnology & Enzyme Catalysis
11. Greifswald University
12. 17487 Greifswald
13. Germany