1. Quantum Optics and Laser Science Group, Blackett Laboratory, Imperial College, London SW7 2AZ, United Kingdom
2. Diamond Light Source Ltd., Diamond House, Harwell Science & Innovation Campus, Didcot, Oxon, United Kingdom
3. Molecular Biophysics, Imperial College London, South Kensington Campus, SW7 2AZ London, United Kingdom
4. Protein Crystallography Facility, Centre for Structural Biology, Department of Life Sciences, Imperial College London, Flowers Building, London SW7 2AZ, United Kingdom
5. RIKEN SPring-8 Center, 1-1-1 Kouto, Sayo-cho, Hyogo 679-5148, Japan
6. Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0032, Japan
7. Japan Synchrotron Radiation Research Institute, 1-1-1 Kouto, Sayo-cho, Hyogo 679-5948, Japan
8. Department of Cell Biology, Graduate School of Medicine, Kyoto University, Yoshidakonoe-cho, Sakyo-ku, Kyoto 606-8501, Japan