1. Institute of Biomedicine; University of Turku; Kiinamyllynkatu 10 20520 Turku Finland
2. Centre for Analysis and Synthesis; Department of Chemistry; Lund University; POB 124 221 00 Lund Sweden
3. Department of Chemical Biology & Drug Discovery, Utrecht Institute for Pharmaceutical Sciences; Utrecht University; P.O. Box 80082 3508 TB Utrecht The Netherlands
4. Turku Centre for Biotechnology; University of Turku and Åbo Akademi University; Tykistökatu 6 20520 Turku Finland
5. Department of Biosciences, Division of Biochemistry and Biotechnology; University of Helsinki; P.O.B. 56 00014 Helsinki Finland