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