1. J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, Dolejškova 3, 182 23 Prague, Czech Republic
2. Department of Inorganic Chemistry, University of Chemistry and Technology, Prague, Technická 5, CZ-166 28 Prague, Czech Republic
3. ELI Beamlines, Institute of Physics, Czech Academy of Sciences, Na Slovance 1999/2, 182 00 Prague, Czech Republic
4. Institute of Biotechnology, Czech Academy of Sciences, Průmyslová 595, 252 50 Vestec, Czech Republic
5. School of Biological and Chemical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, U.K.