1. Institute of Chemical Sciences and Engineering
2. Ecole Polytechnique Fédérale de Lausanne (EPFL)
3. CH-1015 Lausanne
4. Switzerland
5. Laboratory for Biological Geochemistry
6. Interdisciplinary Centre for Electron Microscopy
7. Center for Advanced Surface Analysis
8. Division of Structural Biology and Biochemistry
9. School of Biological Sciences
10. Nanyang Technological University
11. Singapore 637551
12. Singapore