Illustration (IMAGE) Max-Planck-Gesellschaft Caption Three microseconds from the life time of a nucleosome: Snapshots in time were taken every 4 nanoseconds and were superimposed on the core region of the histones (white). The positions of the DNA and the flexible histone tails in all snapshots are shown. The DNA is in yellow and the histone tails in blue, green, red, orange and cyan. The ample motion of the DNA arms is known as nucleosome breathing motion. Remarkably, in this nucleosome, the lower arm moves more than the upper one due to the DNA sequence. Credit Jan Huertas and Vlad Cojocaru; MPI Münster / Hubrecht Institute Usage Restrictions Use of images is limited to editorial coverage of scientific topics relating to the activities of the Max Planck Society. Any kind of commercial use (including, in particular, the exploitation of images by means of sale or incorporation in image databases or image catalogues) as well as any promotional use/use for merchandise purposes, disclosure to third parties or granting of related rights to third parties is expressly not permitted. 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.