To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Movie 1 Actin tail in untreated conditions.Time-lapse of HeLa cells transfected with LifeAct-mCherry and infected with S. flexneri GFP for 2 h 40 min. Infected cells were transferred to the microscope and imaged every 10 sec in untreated (CTRL) conditions. Scale bar = 1 μm. Shigella MreB promotes polar IcsA positioning for actin tail formation Sina Krokowski, Sharanjeet Atwal, Damián Lobato-Márquez, Arnaud Chastanet, Rut Carballido-López, Jeanne Salje, and Serge Mostowy J Cell Sci 2019. 132:None-None; doi: 10.1242/jcs.226217 Download Original Video