About the Authors
Institute of Structural Biology, Helmholtz Zentrum München–German Research Center for Environmental Health, München, Germany
Gene Center and Department of Biochemistry, Ludwig-Maximilians-University, München, Germany
Bioanalytical Mass Spectrometry Group, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany
Center for Integrated Protein Science CIPSM, München, Germany
Interfaculty Institute for Biochemistry, University of Tübingen, Tübingen, Germany
The authors have declared that no competing interests exist.
The author(s) have made the following declarations about their contributions: Conceived and designed the experiments: MM RGH AM KK RPJ DN. Performed the experiments: MM RGH AM KK MS RPJ. Analyzed the data: MM RGH AM KK MS PC HU RPJ DN. Contributed reagents/materials/analysis tools: MM RGH AM KK PC HU RPJ DN. Wrote the paper: MM RGH DN.