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Figure 5
The hexamer of protein molecules in PDB entry 3m9b , originally presented in P21 symmetry (a), are in fact placed around the space-diagonal threefold axis of the true space group P213 (b). Symmetry-equivalent molecules are shown in the same color.

IUCrJ
Volume 1| Part 3| April 2014| Pages 179-193
ISSN: 2052-2525
doi:10.1107/S2052252514005442