A Curvature-Mediated Mechanism for Localization of Lipids to Bacterial Poles
Figure 3
Polar Localization of Lipid Clusters
Elastic energy parameters are fixed (κ = 25 kBT, λ = 0.25 kBT/nm4, γ = 0.4 nm−1), with varying short-range attraction (A) ɛ = 1 kBT, (B) ɛ = 1.5 kBT, and (C) ɛ = 2.5 kBT. The rectangles on the left and right represent the cell poles and have slightly enhanced cell-wall curvature, γpole = 0.04 nm−1. The three-dimensional figure in (D) represents the lipid position and the membrane height in (C) mapped onto the surface of a capped cylinder. The color scheme and fraction of lipid A (ϕ = 0.075) are the same as in Figure 2.