Graphical Abstract (IMAGE) European Molecular Biology Laboratory Caption The graphical abstract of the Cell paper published by Katharina Sonnen and Alexander Aulehla from EMBL Heidelberg. Credit Cell Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.