1. Institute of Technical Biocatalysis; Hamburg University of Technology; Denickestr. 15 21073 Hamburg Germany
2. Dept. of Biotechnology; Delft University of Technology; Van der Maasweg 9 2629 HZ Delft The Netherlands
3. Dept. of Biotechnology & Enzyme Catalysis, Institute of Biochemistry; Greifswald University; Felix-Hausdorff-Str. 4 17487 Greifswald Germany
4. Organic Chemistry I, Faculty of Chemistry; Bielefeld University; P.O. Box 100131 33501 Bielefeld Germany