1. University of Potsdam, Institute for Biochemistry and Biology, Karl-Liebknecht-Str. 24/25, 14476 Potsdam-Golm, Germany
2. Fakultät II - Institut für Chemie, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
3. Microbiology and Biochemistry of Secondary Metabolites Unit. Okinawa Institute of Science and Technology, Tancha 1919-1, Onna-son, 904-0495 Okinawa, Japan