1. The Florey Institute, The University of Melbourne, 30 Royal Parade, Parkville, Victoria 3052, Australia
2. Department of Biochemistry, University of Zurich, CH-8057 Zurich, Switzerland
3. The Department of Biochemistry and Pharmacology, The University of Melbourne, Parkville, Victoria 3010, Australia
4. The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia
5. Vernalis (R&D) Ltd, Granta Park, Cambridge CB21 6GB, U.K.
6. Department of Chemistry, University of York, York YO10 5DD, U.K.
7. Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia