1. Bayer AG, Drug Discovery, Pharmaceuticals, Müllerstraße 178, 13353 Berlin, Germany
2. Structural Genomics Consortium, Institute for Pharmaceutical Chemistry, Johann Wolfgang Goethe-University, Max-von-Laue-Straße 9, 60438 Frankfurt am Main, Germany
3. Structural Genomics Consortium, Buchmann Institute for Molecular Life Sciences, Johann Wolfgang Goethe-University, Max-von-Laue-Straße 15, 60438 Frankfurt am Main, Germany
4. Promega Corporation, 2800 Woods Hollow Road, Fitchburg, Wisconsin 53711, United States