1. Molecular Biology Division, Biomedical Center, Faculty of Medicine and Center for Integrated Protein Science Munich (CIPSM), Ludwig-Maximilians-Universität Munich, 82151 Martinsried, Germany
2. Graduate School for Quantitative Biosciences (QBM), Ludwig-Maximilians-Universität Munich, 81377 Munich, Germany
3. Group of Molecular Organization of Genome, Department of the Control of Genetic Processes, Institute of Gene Biology, Russian Academy of Sciences, 119334 Moscow, Russia