1. Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, NAWI Graz, Petersgasse 12/I, 8010 Graz, Austria
2. Austrian Centre of Industrial Biotechnology, Petersgasse 14, 8010 Graz, Austria
3. Department of Chemistry─BMC, Uppsala University, BMC Box 576, S-751 23 Uppsala, Sweden
4. Institute of Biochemistry, Graz University of Technology, NAWI Graz, Petersgasse 12/II, 8010 Graz, Austria
5. Department of Organic Chemistry, University of Vienna, Währingerstraße 38, 1090 Vienna, Austria