To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie S1. Three-dimensional visualization of the filopodial F-actin while it retracts and performs rotation and helical coiling. Helical buckling of actin inside filopodia generates traction Natascha Leijnse, Lene B. Oddershede, and Poul M. Bendix PNAS. 2014. DOI: 10.1073/pnas.1411761112 Download Original Video Browse All Videos »