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. 2016 Apr 22;4:41. doi: 10.1186/s40478-016-0312-9

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© Mata-Garrido et al. 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. 6 — a–e Confocal microscopy images of SGN nuclei co-stained for γH2AX in combination with fibrillarin (a, b), coilin (c), histone H4K20me3 (d) and HP1γ (e). They illustrate the direct association of PDDF with a triad of structures: the nucleolus (a, c, e), Cajal bodies, immunolabeled for fibrillarin (b) or coilin (c), and perinucleolar heterochromatin clumps immunolabled for the tri-methylated histone H4K20me3 (d) or HP1γ (e). f Double immunolabeling for 53BP1 and TMG-cap illustrate the distribution of the nuclear speckles of splicing factors labelled with the anti-TMG-cap antibody and the close association of a PDDF with a speckle in the vicinity of the nucleolus. 45d post-IR. Scale bar = 5 μm