Imperial College London - Section of Cell Biology and Functional Genomics, Imperial College London, Imperial College London - Section of Cell Biology and Functional Genomics, Imperial College London - Section of Cell Biology and Functional Genomics, University of Lille, University of Lille, University of Lille, Sanofi-Aventis Deutschland GmbH, TU Dresden - Paul Langerhans Institute of the Helmholtz Center Munich, University of Lausanne - Swiss Institute of Bioinformatics (SIB), University of Pisa - Islet Cell Laboratory, University of Pennsylvania - Department of Pathology and Lab Medicine, University of Pennsylvania - Department of Pathology and Lab Medicine, University of Cambridge - MRC Laboratory of Molecular Biology, University of Cambridge - MRC Laboratory of Molecular Biology and Imperial College London - Section of Cell Biology and Functional Genomics