1. Department of Chromatin Regulation, Max Planck Institute of Immunobiology and Epigenetics, 79108 Freiburg, Germany.
2. University of Freiburg, Faculty of Biology, Schaenzlestrasse 1, 79104 Freiburg, Germany.
3. International Max Planck Research School for Molecular and Cellular Biology (IMPRS-MCB), Freiburg, Germany.
4. Laboratory of Quantitative Single-Cell Biology, Max Planck Institute of Immunobiology and Epigenetics, 79108 Freiburg, Germany.
5. CIBSS—Centre for Integrative Biological Signaling Studies, University of Freiburg, Freiburg, Germany.