1. Department of Microbiology and Immunology, University of Otago, Dunedin 9054, New Zealand
2. Maurice Wilkins Centre for Molecular Biodiscovery, The University of Auckland, Private
Bag 92019, Auckland 1042, New Zealand
3. School of Biomedical Sciences and the Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds LS2 9JT, United Kingdom