To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S5. Step-wise simplification of a 71 knot under spherical confinement; Synergy of topoisomerase and structural-maintenance-of-chromosomes proteins creates a universal pathway to simplify genome topology Enzo Orlandini, Davide Marenduzzo, and Davide Michieletto PNAS. 2019. DOI: 10.1073/pnas.1815394116 Download Original Video Browse All Videos »