1. Infection and Immunity Program, Monash Biomedicine Discovery Institute, Department of Microbiology, Monash University, Clayton, VIC 3800, Australia
2. School of Molecular and Cellular Biology, Faculty of Biological Sciences, Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, UK
3. Victorian Infectious Diseases Reference Laboratory (VIDRL), Melbourne Health, The Peter Doherty Institute, Melbourne, VIC 3000, Australia
4. School of Science, Royal Melbourne Institute of Technology (RMIT) University, Melbourne, VIC 3001, Australia
5. Commonwealth Scientific and Industrial Research Organisation, Clayton, VIC 3169, Australia
6. Jenner Institute, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7BN, UK