Fig. 1
Structural polymorphism of AL1 peptide fibrils. a Side view of reconstructions of fibril morphologies I–X (scale bar, 50 nm). b Cross-sectional slices of the reconstructed densities superimposed with a lattice of parallelograms (red). Reconstructions of morphologies I–V were filtered to 10 Å and morphologies VI–X to a resolution corresponding to their FSC values at 0.143 (scale bar, 5 nm). c Aligned and averaged parallelograms of morphologies I–V sharing a quasi-twofold symmetry. The data from morphology I were included as published8 (scale bar, 2 nm)
