The plasma membrane (PM) has been historically described as an equilibrated two-dimensional fluid composed of lipids and proteins. Numerous biophysical studies now give a more nuanced view of the PM ...

Polarized exocytosis induced by local Cdc42 GTPase activity results in membrane flows that deplete low-mobility membrane-associated proteins. A reaction-diffusion particle model comprising Cdc42 ...

Protein molecules are found embedded in the two layers of phospholipids. Membrane proteins have a wide variety of functions. Some allow a cell to respond to specific chemical signals from other cells, ...