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Figure 3
Three examples of tracing evolution: (a, b) apoferritin, (c, d) autophagy-related protein 38 and (e, f) titin A168-A169. (a), (c) and (e) show standard polyalanine tracing, (b) shows restrained helical tracing with 14-residue seeds, (d) with 12-residue helical seeds extended by sliding and (f) with two-stranded antiparallel β seeds. The full sequence is shown on the left, with blue for Cα atoms within 0.3 Å, green for those at 0.6–0.3 Å, yellow for those at 1.0–0.6 Å, orange for those at 2.0–1.0 Å and red for no match. Incorrectly traced residues are shown on the same scale on the right.

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ISSN: 2059-7983
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