Marston Cell Movement (IMAGE) University of North Carolina Health Care Caption Imaging two or more protein activities at the same time allows researchers to map the signaling network coordinating cell movements. Warm colors (white, red) show sites of high activity, seen here at sites where the cell is protruding (arrowheads). Credit Daniel Marston, PhD, UNC School of Medicine Usage Restrictions credit properly 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.