PT - JOURNAL ARTICLE AU - Anderson, Richard G. W. AU - Jacobson, Ken TI - A Role for Lipid Shells in Targeting Proteins to Caveolae, Rafts, and Other Lipid Domains AID - 10.1126/science.1068886 DP - 2002 Jun 07 TA - Science PG - 1821--1825 VI - 296 IP - 5574 4099 - http://science.sciencemag.org/content/296/5574/1821.short 4100 - http://science.sciencemag.org/content/296/5574/1821.full SO - Science2002 Jun 07; 296 AB - The surface membrane of cells is studded with morphologically distinct regions, or domains, like microvilli, cell-cell junctions, and coated pits. Each of these domains is specialized for a particular function, such as nutrient absorption, cell-cell communication, and endocytosis. Lipid domains, which include caveolae and rafts, are one of the least understood membrane domains. These domains are high in cholesterol and sphingolipids, have a light buoyant density, and function in both endocytosis and cell signaling. A major mystery, however, is how resident molecules are targeted to lipid domains. Here, we propose that the molecular address for proteins targeted to lipid domains is a lipid shell.