1. School of Pharmacy; University of East Anglia; Norwich Research Park Norwich NR4 7TJ UK
2. Department of Structural Biology; VIB; 1050 Brussels Belgium
3. Structural Biology Brussels; Vrije Universiteit Brussel; 1050 Brussels Belgium
4. Brussels Centre for Redox Biology; 1050 Brussels Belgium
5. Division of Redox Regulation; German Cancer Research Centre (DKFZ); Im Neuenheimer Feld 280 69121 Heidelberg Germany