Considering either peaks of H4K20me3 determined by DiffBind or base pairs within the two antibody intersection, there was a highly significant two- to threefold enrichment of H4K20me3 overlap with H3K9me3 in RS cells and a three- to sixfold enrichment in OIS cells (Fig. 3g , h ; Additional file 1 : Figure S3f, g).
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Mapping H4K20me3 onto the chromatin landscape of senescent cells indicates a function in control of cell senescence and tumor suppression through preservation of genetic and epigenetic stability.
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