1. Division of Structural Biology, Wellcome Centre for Human Genetics, University of Oxford, Roosevelt Drive, Oxford OX3 7BN, UK.
2. Department of Anesthesiology, Weill Cornell Medical College, 1300 York Ave., New York, NY 10065, USA.
3. Calleva Research Centre for Evolution and Human Sciences, Magdalen College, University of Oxford, Oxford OX1 4AU, UK.
4. Department of Molecular Biology and Nanobiotechnology, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia.
5. Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, UK.
6. Department of Microbiology and Immunology, University of Miami Miller School of Medicine, Miami, FL 33136, USA.
7. Department of Physiology and Biophysics, Weill Cornell Medical College, 1300 York Ave., New York, NY 10065, USA.