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Figure 1
Translational noncrystallographic symmetry in a Hyp-1–ANS crystal. (a) Averaged reflection intensities in layers of constant l index. The pattern of modulation of the intensities, with peaks separated by 7/2 along c*, is striking. (b) Patterson map v = 0 section, showing the repetitive peaks (with peak height relative to the origin) along 00w. (c) The 28 independent Hyp-1 molecules forming the asymmetric unit of the C2 crystal packing, arranged in a dimeric pattern with a sevenfold repeat around a noncrystallographic 21 screw (indicated) along the crystallographic c direction. Dimer AB is labelled.

Journal logoBIOLOGICAL
CRYSTALLOGRAPHY
ISSN: 1399-0047
Volume 70| Part 2| January 2014| Pages 471-480
doi:10.1107/S1399004713030319
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