{Reference Type}: Journal Article {Title}: Membranes are functionalized by a proteolipid code. {Author}: Kervin TA;Overduin M; {Journal}: BMC Biol {Volume}: 22 {Issue}: 1 {Year}: 2024 Feb 27 {Factor}: 7.364 {DOI}: 10.1186/s12915-024-01849-6 {Abstract}: Membranes are protein and lipid structures that surround cells and other biological compartments. We present a conceptual model wherein all membranes are organized into structural and functional zones. The assembly of zones such as receptor clusters, protein-coated pits, lamellipodia, cell junctions, and membrane fusion sites is explained to occur through a protein-lipid code. This challenges the theory that lipids sort proteins after forming stable membrane subregions independently of proteins.