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. 2011 Feb 22;108(10):3906–3911. doi: 10.1073/pnas.1100640108

Fig. 4.

Fig. 4.

Enrichment of RNA polymerase II and histone marks on TFIID subunit promoters. Purified hepatoblasts and hepatocytes were cross-linked and chromatin was subjected to immunoprecipitation with antibodies against (A) pol II, (B) triemethylated H3K4, or (C) trimethylated H3K9. DNA was purified and the abundance of TBP, TAF5, or CYP7A1 proximal promoter DNA was compared to an IgG control by qPCR.