Figure 2From: Hog1 bypasses stress-mediated down-regulation of transcription by RNA polymerase II redistribution and chromatin remodelingHog1 associates with RNA Pol II and RNA Pol III loci upon stress. (a) Stacked bars representing the percentage of Hog1-occupied ORFs upon stress as determined by ChIP-Seq data for Hog1-dependent and -independent subsets of genes (Z-score 4; P = 0.0001), as in Figure 1d). (b) Boxplot of Hog1 association upon stress (Z-score) at promoters (from -500 to the transcription start site) and ORFs in genes whose expression is classified as Hog1-dependent or Hog1-independent. (c) Hog1 recruitment at RNA Pol III loci of SCR1, RPR1 and tF(GAA)D. Histograms represent Hog1 ChIP-Seq profiles from a non-stressed sample normalized to that obtained upon osmostress. Right-hand panel: Validation of Hog1 recruitment to novel Hog1 sites by ChIP. (d) In vivo binding of Hog1 and RNA Pol III. Hog1-HA and a specific subunit of RNA Pol III (Rpc82-Myc) were expressed from their endogenous locus. Samples were taken before (-) and after (+) stress (0.4 M NaCl, 10 minutes).Back to article page