GAPDH and infection: The data were first normalized for GAPDH expression and Fig. 1 shows quantitative Real Time RT-PCR expression analysis of 19 NF-Y targets, in which binding was associated with H3K4Me3 in ChIP on chip experiments [24]; essentially, three patterns were observed: (i) in the majority, YA-DN treatment leads to decrease in expression of the genes, with little effect observed in the control GFP or Ad-NF-YA infections.