1. Institute of Organic Chemistry and Center for Molecular Biosciences; University of Innsbruck; 6020 Innsbruck Austria
2. University of Michigan Medical School; Ann Arbor USA
3. Department of Biochemistry; Uniformed Services University of the Health Sciences; Bethesda USA
4. Current address: Department of Pathology; University of Utah School of Medicine; Salt Lake City UT USA
5. Current address: Watercryst GmbH & Co; Kematen Austria
6. Institute of General, Inorganic and Theoretical Chemistry; University of Innsbruck; Austria