1. Oxford Particle Imaging Centre, Department of Structural Biology, Wellcome Centre Human Genetics, University of Oxford, Oxford, UK.
2. Centre for Structural Systems Biology, Heinrich-Pette-Institut, Leibniz-Institut für Experimentelle Virologie, Hamburg, Germany.
3. Department of Biochemistry, University of Oxford, Oxford, UK.
4. Institute of Structural and Molecular Biology, Birkbeck, London, UK.
5. Friedrich-Loeffler-Institut, Federal Research Institute for Animal Health, Insel Riems, Germany.
6. Institut Pasteur, Structural Virology Unit, Department of Virology, Paris, France.
7. Department of Chemistry, MIN Faculty, Universität Hamburg, Hamburg, Germany.