1. Institute of Pharmaceutical Chemistry, Johann Wolfgang Goethe University, Max-von-Laue-Str. 9, 60438 Frankfurt am Main, Germany
2. Structural Genomics Consortium (SGC), Buchmann Institute for Molecular Life Sciences, Max-von-Laue-Str. 15, 60438 Frankfurt am Main, Germany
3. Centre for Medicines Discovery, University of Oxford, Old Road Campus, Roosevelt Drive, Oxford OX3 7DQ, U.K.
4. Institute of Biochemistry II, Faculty of Medicine, Johann Wolfgang Goethe University, Max-von-Laue-Str. 15, 60438 Frankfurt am Main, Germany
5. Department of Pharmaceutical/Medicinal Chemistry, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany