1. School of Chemistry and Molecular BiosciencesAustralian Infectious Diseases Research Centre and Institute for Molecular Bioscience, University of QueenslandBrisbane Queensland 4072 Australia
2. Commonwealth Scientific and Industrial Research Organisation Agriculture and FoodCanberra Australian Capital Territory 2601 Australia
3. Division of Plant SciencesResearch School of Biology, Australian National University, Acton Australian Capital Territory 2601 Australia
4. Australian Synchrotron, Macromolecular crystallographyClayton Victoria 3168 Australia
5. Institute for Glycomics, Griffith UniversitySouthport Queensland 4222 Australia
6. School of Molecular BioscienceUniversity of SydneySydney New South Wales 2006 Australia