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Nature Cell Biology 10, 7–9 (1 January 2008) | doi:10.1038/ncb0108-7

Epigenetic memory: H3.3 steps in the groove

Nicolas Lacoste & Genevi|[egrave]|ve Almouzni

The Soft Watches of Dali (Fig. 1) reflect the fascinating notion that epigenetic programmes represent a 'soft' memory, which can be reversed.