To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S2. Motility patterns of TFP-deficient or TFP-producing (WT) cells moving within a population of WT cells during in silico computer simulations. Type IV pili interactions promote intercellular association and moderate swarming of Pseudomonas aeruginosa Morgen E. Anyan, Aboutaleb Amiri, Cameron W. Harvey, Giordano Tierra, Nydia Morales-Soto, Callan M. Driscoll, Mark S. Alber, and Joshua D. Shrout PNAS. 2014. DOI: 10.1073/pnas.1414661111 Download Original Video Browse All Videos »