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Figure 4
Structural simulation of a modulation. (a) A small section of the protein was extracted out into the solvent channel and then modulated as a function of distance in y (or x2). (b) The modulation was a simple rotation using two atoms (black spheres) to create a rotation axis, and the gray spheres show the atomic positions that are monitored in Figs. 5[link] and 6[link]. The gray atoms are on parts of the chain with the greatest amount of modulation. (c) View looking down the rotation axis. (d) The modulation is shown as a rainbow of the seven overlaid modulated chains in the supercell from blue (−15°) to red (+15°). The average position is shown in the stack as a gray molecule located just to the right of the light blue structure and left of the orange structure.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
Volume 75| Part 9| September 2019| Pages 852-860
https://doi.org/10.1107/S2059798319011082
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