1. Institute
of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám 2, 166
10 Prague 6, Czech Republic
2. Department
of Analytical Chemistry and Department of
Physics and Measurements, Institute of Chemical Technology, Prague, Technická
5, 166 28 Prague 6, Czech Republic
3. York
Structural Biology Laboratory, Department of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom