1. Institute of Pharmaceutical Sciences, University of Freiburg, 79085 Freiburg im Breisgau, Germany
2. Renal Division, Department of Medicine, Medical Center—University of Freiburg, Faculty of Medicine, University of Freiburg, 79085 Freiburg im Breisgau, Germany
3. Signaling Research Centers BIOSS and CIBSS, University of Freiburg, 79085 Freiburg im Breisgau, Germany
4. Boehringer Ingelheim Pharma GmbH & Co. KG, 88400 Biberach an der Riß, Germany
5. Institute of Chemistry, Martin-Luther-University of Halle-Wittenberg, 06108 Halle, Germany
6. Leslie Dan Faculty of Pharmacy, University of Toronto, M5S Toronto, Canada