1 Institute of Experimental Genetics, Helmholtz Zentrum München GmbH, Neuherberg, Germany. beckers@helmholtz-muenchen.de.
2 Department of Molecular Life Sciences, Chair of Experimental Genetics, Technical University Munich, Freising, Germany. beckers@helmholtz-muenchen.de.
3 DZD - German Center for Diabetes Research, Neuherberg, Germany. beckers@helmholtz-muenchen.de.
4 Institute of Experimental Genetics, Helmholtz Zentrum München GmbH, Neuherberg, Germany.
5 DZD - German Center for Diabetes Research, Neuherberg, Germany.
6 Université de Strasbourg, CNRS UM7104, INSERM U1258, IGBMC, PHENOMIN-ICS, Illkirch, France.
7 Department of Molecular Life Sciences, Chair of Experimental Genetics, Technical University Munich, Freising, Germany.