The Front and Back of Migrating Cells (VIDEO) Johns Hopkins Medicine This video is under embargo. Please login to access this video. To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Caption In migrating cells, patches of actin filaments (red) are found at the front, while the protein Callipygian (green) is found at the back. Credit Credit: Kristen Swaney, Johns Hopkins Medicine 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.