To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S2. Example movie of a reversible gold-Tub2-KCK binding event (100 frames per second). Scale bar 0.5 μm. Direct observation of individual tubulin dimers binding to growing microtubules Keith J. Mickolajczyk, Elisabeth A. Geyer, Tae Kim, Luke M. Rice, and William O. Hancock PNAS. 2019. 116:7314-7322 DOI: 10.1073/pnas.1815823116 Download Original Video Browse All Videos »