Fig. 4
Relationships between distributions of short-frame bend angles and aliphatic-residue pattern. Normalized distributions for the RL and UD bends of the short frames according to their aliphatic-residue pattern classification. a The distributions for the RL bend angles were each fit with a Cauchy distribution, y = A/((x ‐ θ)2 + B) + y0. The peak angles for AP2, AP1up, AP1dw, and AP0 are 8.4 ± 0.2°, 6.6 ± 0.1°, 6.2 ± 0.1°, and 4.2 ± 0.1°, respectively. b The distributions for the UD bend angles were fit with double Cauchy distributions, y = A1/((x ‐ θ1)2 + B1) + A2/((x ‐ θ2)2 + B2)y0, except for the AP0 distribution, which was fit with a single Cauchy distribution. The peak angles (θ1 and θ2) for AP2 are −8.5 ± 0.6° and 8.5 ± 0.4°. The peak angles for AP1up are–7.4 ± 0.5° and 5.7 ± 0.3°. The peak angles for AP1dw are–6.1 ± 0.7° and 6.4 ± 0.2°. The peak angle for AP0 is 2.4 ± 0.1°