1. Department of Chemistry and Molecular Biology, University of Gothenburg, Box 462, 40530 Gothenburg, Sweden
2. Division of Biology and Chemistry-Laboratory for Biomolecular Research, Paul Scherrer Institut, 5232 Villigen, Switzerland
3. Photon Science Division – Laboratory for Macromolecules and Bioimaging (LSB), Paul Scherrer Institut, 5232 Villigen, Switzerland
4. Photon Science Division – Laboratory for Synchrotron Radiation and Femtochemistry (LSF), Paul Scherrer Institut, 5232 Villigen, Switzerland
5. Department of Chemistry-BMC, University of Uppsala, Husargatan 3, 75237 Uppsala, Sweden