1. Department of Biochemistry, University of Oxford; Oxford UK
2. Membrane Protein Laboratory, Diamond Light Source, Harwell Science and Innovation Campus; Didcot UK
3. Research Complex at Harwell, Rutherford Appleton Laboratory; Didcot UK
4. Division of Molecular Biosciences, Imperial College London; London UK
5. Japan Science and Technology Agency, ERATO Human Receptor Crystallography Project; Kyoto Japan
6. Department of Cell Biology, Graduate School of Medicine, Kyoto University; Kyoto Japan