1. The Czech Academy of Sciences; Institute of Biophysics; Královopolská 135 612 65 Brno Czech Republic
2. The Czech Academy of Sciences; Institute of Organic Chemistry and Biochemistry; Flemingovo namesti 2 16610 Prague 6 Czech Republic
3. Department of Organic Chemistry, Faculty of Science; Charles University in Prague; Hlavova 8, Prague- 2 12843 Czech Republic
4. Central European Institute of Technology; Masaryk University; Kamenice 753/5 625 00 Brno Czech Republic