1Bonner Forum Biomedizin, University of Bonn, Ulrich-Haberland-Strasse 61a, D-53121, Bonn, Germany
2Institute of Cell Biology, University of Bonn, Ulrich-Haberland-Strasse 61a, D-53121 Bonn, Germany
3Institute of Clinical Chemistry, Molecular Diagnostics and Mitochondrial Genetics and Diabetes Research Group, Academic Hospital Munich-Schwabing, Koelner Platz 1, 80804 Munich, Germany