1. Department of Molecular Structural Biology, University of Göttingen, Göttingen, Germany
2. Bioanalytical Mass Spectrometry Group, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
3. Bioanalytics Group, Institute for Clinical Chemistry, University Medical Center Göttingen, Göttingen, Germany
4. Cluster of Excellence “Multiscale Bioimaging: From Molecular Machines to Networks of Excitable Cells” (Mbexc), University of Göttingen, Göttingen, Germany