1. Department of Biochemistry and Pharmacology Bio21 Molecular Science and Biotechnology Institute, University of Melbourne Parkville Victoria Australia
2. ARC Centre for Cryo‐electron Microscopy of Membrane Proteins Bio21 Molecular Science and Biotechnology Institute, University of Melbourne Parkville Victoria Australia
3. EMBL Australia Node in Single Molecule Science, School of Medical Sciences University of New South Wales Sydney New South Wales Australia
4. Department of Microbiology and Immunology University of Oklahoma Health Sciences Center Oklahoma City Oklahoma USA
5. Australian Cancer Research Foundation Rational Drug Discovery Centre St Vincent's Institute of Medical Research Fitzroy Victoria Australia