1. School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK
2. Infection Biology Unit, German Primate Centre - Leibniz Institute for Primate Research, 37077 Göttingen, Germany
3. School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK
4. Faculty of Biology and Psychology, Georg-August-University Göttingen, 37073 Göttingen, Germany
5. School of Food Science and Nutrition, and Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK