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. 2011 Mar 1;2:222. doi: 10.1038/ncomms1218

Table 1. Pearson correlation coefficient for different acetylated residues in ES and differentiated cells.

Modification ES cells (n) Differentiated cells (n) t-test
H3ac −0.25 (34) −0.52 (25) P<0.001
H4ac −0.24 (11) −0.59 (18) P<0.001
H4K8ac
−0.23 (27)
−0.47 (22)
P<0.001

The Pearson correlation coefficient for H3K27m3 versus histone acetylation signal results represent the mean value for n (as indicated) cells. P-value calculated by two-tailed t-test.