Fig 3.
Role of membrane-deforming proteins in CDR formation. Curved activator complexes diffuse in the membrane, inducing a spontaneous curvature dependent on their local concentrations. The activators aggregate at regions where the membrane shape matches their curvature. Actin bundling and branching proteins are then recruited by the activator complexes, where they promote branched actin filament formation to give rise to protrusions.
