School of Chemical Sciences, The University of Auckland, 23 Symonds St, Auckland, New Zealand. School of Biological Sciences, The University of Auckland, 3A Symonds St, Auckland, New Zealand. Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Private Bag 92019, Auckland, 1010, New Zealand. School of Chemical Sciences, The University of Auckland, 23 Symonds St, Auckland, New Zealand. m.brimble@auckland.ac.nz. School of Biological Sciences, The University of Auckland, 3A Symonds St, Auckland, New Zealand. m.brimble@auckland.ac.nz. Maurice Wilkins Centre for Molecular Biodiscovery, University of Auckland, Private Bag 92019, Auckland, 1010, New Zealand. m.brimble@auckland.ac.nz.