Fig. 3.

5′-3′end correlation and autocorrelation plots. a 5′-3′ end correlation plot for STAT1 ChIP-seq tags from interferon-γ stimulated and unstimulated HeLa cells. The horizontal position of the peak maximum suggests an average fragment size of about 150 bp. b Autocorrelation plot of 75 bp-centered STAT1 ChIP-seq tags from stimulated cells