M, N ChIP analyses of the indicated strains Occupancy of Rpb3 (M) and the ratio of CTD S2-P relative to Rpb3 (N) at 3' ORF regions of the indicated genes were individually analyzed by ChIP Error bars show SD from three independent analyses. Data information: Asterisks represent statistically significant differences between WT and ulp2Δ using a two-tailed Student's t test (*, P <0.05; **, P <0.01). 