1. Structural Genomics Consortium, UNC Eshelman School of Pharmacy; University of North Carolina at Chapel Hill; Chapel Hill NC 27599 USA
2. School of Pharmacy, Faculty of Health Sciences; University of Eastern Finland; 70211 Kuopio Finland
3. Structural Genomics Consortium and Target Discovery Institute, Nuffield Department of Clinical Medicine; University of Oxford; Old Road Campus Research Building Oxford OX3 7DQ UK
4. Structural Genomics Consortium; Universidade Estadual de Campinas-UNICAMP; Campinas São Paulo 13083-886 Brazil
5. Department of Pharmacology; University of North Carolina at Chapel Hill; NC 27599 USA
6. UK National Crystallography Service, School of Chemistry; University of Southampton; Highfield Campus Southampton SO17 1BJ UK