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Side-by-side comparison of different stalks: (A) Slices through the xz plane of a stalk in different lipid systems. The colorbar applies to all four density maps. (B) The density map obtained by a recent MD simulation using POPC (46) shows a very similar stalk architecture. Shown is the lipid headgroup number density. Fig. 3B adapted with permission from ref. 46. Copyright (2010) American Chemical Society.
