Fig. 1: Overview and analysis of HepG2 data sets.
From: Occupancy maps of 208 chromatin-associated proteins in one human cell type
a, The 208 chromatin-associated factors assayed in HepG2 cells, organized by expression (FPKM), and denoting whether the factors were assayed by ChIP–seq or CETCh–seq. b, Scatter plot of all 208 factors, showing broad distribution of fraction of called peaks at expressed TSSs (±3 kb from TSS) against total peak number; points beyond the maximum possible fraction are possible owing to multiple peaks at single TSS regions. c, Plot showing PCA of genomic segments (n = 282,105) with more than two factors bound, highlighting the separation on the basis of the number of factors bound. d, Same plot as in c showing promoter versus distal location. e, Same plot as in c showing PC2 versus PC3 and highlighting the presence of CTCF.
