1. Infection
and Immunity Program and Department of Biochemistry and Molecular
Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
2. ARC
Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, Victoria 3800, Australia
3. Structural
Biology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria 3052, Australia
4. Department
of Medical Biology, University of Melbourne, Parkville, Victoria 3052, Australia