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. 2011 Sep 7;6(9):e24214. doi: 10.1371/journal.pone.0024214

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Papaleo et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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The positive correlations are represented as grey sticks connecting the Cα atoms of the average structures from simulations. Grey spheres represent the coordinated ions. The regions of loop 7 and 8 are highlighted by circles in AHA and PPA, respectively.