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. 2016 Aug;44:143–150. doi: 10.1016/j.dnarep.2016.05.020

Fig. 4.

Fig. 4

Nucleolar ATR signaling. Oncogene induced ARF expression, UV/ActD induced nucleolar disruption activates ATR kinase. Mechanical stimulus such as nuclear compression, osmotic challenge and thermal shock induces ATR activation and its relocalization into the nucleolus. This relocalization induces cellular level responses similar to DDR and can help in recruitment of other proteins into the nucleolus.