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Figure 3
Examples of the vibration–libration ensembles. Red/salmon/magenta sticks indicate the principal vibration axes, with the origin in the centre of the group; blue/marine/black sticks are the libration axes. Yellow spheres in the 1dqv model show the reaction centres. (a) 1dqv model. (b) 1exr model; note pure vibrations for group 3 (the helix) and the absence of one of the libration axes for groups 1 and 2. (c) 4b3x model. Libration axes for the first group are not shown as they are too far from the molecule.

Journal logoSTRUCTURAL
BIOLOGY
ISSN: 2059-7983
Volume 71| Part 8| August 2015| Pages 1668-1683
https://doi.org/10.1107/S1399004715011426
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