Capture of a Vesicle (IMAGE) Technische Universität Dresden Caption Capture of a vesicle by an endosome by the tethering factor EEA1 binding Rab5. Active Rab5 (shiny blue particles) induces a change in flexibility of EEA1 (green filaments) generating an entropic collapse force that pulls the vesicle toward the target membrane to dock and fuse. Credit Mario Avellaneda Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.