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Model of the Vipp1 structure. (A and B) Side and top view ribbon representations of four predicted Vipp1 monomers arranged in a dimer of dimers configuration. (C) Projection map showing a Vipp1 ring with 15-fold symmetry. (D–F) Top, tilted and side view of the modelled Vipp1 ring, respectively. In (D) the model is placed on top of the projection map shown in (C). The scale bar in (C) equals 10 nm which is also valid for (D–F).
