Illustration of Lipid Raft (IMAGE) University of Pittsburgh Caption Schematic of protein activation and lipid membrane remodeling. A density change of active receptors drives the system towards an active configuration in which the lipid bilayer shrinks around active domains, this causing cell membrane deformation and thickening in the form of lipid rafts. Credit Carotenuto, Lunghi et al. 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.