1. Laboratory of Mass Spectrometry Institute of Biochemistry and Biophysics Polish Academy of Sciences Warsaw Poland
2. Biophysics of Macromolecules German Cancer Research Center (DKFZ) Heidelberg Germany
3. Chromatin Networks German Cancer Research Center (DKFZ) Heidelberg Germany
4. Biophysics Core Facility International Institute of Molecular and Cell Biology Warsaw Poland
5. Laboratory of Protein Structure International Institute of Molecular and Cell Biology Warsaw Poland
6. Institute of Neuropathology University Hospital Erlangen Germany
7. Division of Molecular Genetics German Cancer Research Center (DKFZ) Heidelberg Germany
8. Biology Department Institute of Genetics and Biotechnology Warsaw University Poland