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. 2016 Nov 28;13:195. doi: 10.1186/s12985-016-0650-z

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© The Author(s). 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Antigenic sites identified in the capsid crystal structure of the FMDV/O1 BFS 1860. a The O1 BFS 1860 asymmetric unit (PDB # 1FOD) was manipulated with Chimera, consisting of 1 VP1 (yellow), 1 VP2 (green), 1 VP3 (cyan) and 1 VP4 (tan), with previously identified antigenic sites shown as blue spheres (site 1), orange spheres (site 2), gray spheres (site 3), black spheres (site 4) and magenta spheres (site 5), and with A22 Iraq escape mutant mutations (H77R, Q79K and K80T) depicted as red spheres, respectively. b Partial amino acid alignment of the VP2 sequences of representative FMDV serotypes. Positions of the FMDV/A22 Iraq escape mutant mutations are indicated as red dots and the adjacent FMDV/A antigenic site 3 is shown in a box