D only the 5'LTR (10-foldNIH-PA Author Manuscript NIH-PA Author Manuscript NIH-PA Author ManuscriptCell Host Microbe. Author manuscript; available in PMC 2014 November 03.Lenasi et al.Pageenrichment; Figure 5D, bars 3 and 7). Furthermore, at the 5'LTR these levels were increased minimally upon TNF- stimulation. However, the stimulation led to a dramatic (52-fold) enrichment of PS2-RNAPII at the 3'