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Figure 2
Geometric description of the parameters used to generate the helical models. Constraints and limits are given in §[link]2 and Table 1[link]. Parameters of the helices in the inner bundle are subscripted h1, while the parameters of the outer helical bundle are subscripted h2. (a) The first helix is rotated with Euler angles αh1, βh1 and γh1. The resulting new helix orientation is shown in a lighter shade of gray. (b) The second helix is rotated with Euler angles αh2, βh2 and γh2 and a distance from the protein symmetry axis rh2. (c) αb is the rotation of the outer helical bundle about the inner helical bundle.

Journal logoBIOLOGICAL
CRYSTALLOGRAPHY
ISSN: 1399-0047
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