C, ChIP-qPCR for total RNA Pol II, pSer5 Pol II, and pSer2 Pol II at ERP70, GRP78, and a gene desert (Prom = gene promoter, Coding = downstream coding region - see Appendix Table S1 for primer sequences). Three independent experiments are represented as mean ± SEM. with significance measured by Student's t-test, *p<0.05, **p<0.01, ***p<0.005. 