Fig. 5.

The calculated interstrand distance. The effective β-strand distance, which is an inverse of the distance between two intermolecular C^α atoms of the same residues for the 20-mer p3 (a), p3h (b), N9 (c), and N9h (d) barrels. Gray circles and white triangles denote the effective β-strand distances for the inner N-terminal and outer C-terminal β-strands, respectively. The radial data set of the effective distance is in the scale of 0.25 Å⁻¹. Angular intervals represent each peptide in the Aβ barrels as the number marked on the angular scale.