1. IRCCS SDN; Napoli Italy
2. Institute of Biostructures and Bioimaging, C.N.R.; Napoli; Italy
3. Consorzio Interuniversitario di Ricerca in Chimica dei Metalli nei Sistemi Biologici (C.I.R.C.M.S.B.); Catania Italy
4. Center for Structural Systems Biology (CSSB); University Medical Center Hamburg-Eppendorf (UKE); Hamburg Germany
5. Deutsches Elektronen-Synchrotron (DESY); Hamburg Germany
6. Institute of Molecular Biotechnology (IMBA); Austrian Academy of Sciences; Vienna Austria
7. Research Institute of Molecular Pathology (IMP); Vienna Austria