1. Institute
of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2., H-1117 Budapest, Hungary
2. European Molecular Biology Laboratory, Hamburg Outstation, Notkestrasse 85, 22603 Hamburg, Germany
3. Department
of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Gellért tér 4., H-1111 Budapest, Hungary
4. Institute
of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok krt. 2., H-1117 Budapest, Hungary
5. Dipartimento
di Bioscienze, Universitá degli Studi di Parma, Viale G.P.
Usberti 23/A, I-43100 Parma, Italy
6. Macromolecular
Crystallography (HZB-MX), Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Strasse 15, D-12489 Berlin, Germany