1. Department of Biochemistry; Faculty of Science; Masaryk University, Kotlářská 2, 611 37 Brno; Czech Republic
2. Central European Institute of Technology; Masaryk University, Kamenice 5; 625 00 Brno Czech Republic
3. Department of Chemistry; Faculty of Science; Masaryk University, Kotlářská 2; 611 37 Brno Czech Republic