Highly transcribed muscle cell identity genes.

A. Localisation of Pol II peaks in muscle relative to the TSS. B. Read density analyses of Pol II and H3K27ac at Ensembl annotated genes distinguishing those with high transcribing Pol II density classes A and B from those with lower or no transcribing Pol II, classes C-E. C. Results of functional enrichment ontology analyses of the genes in classes A and B showing the enriched terms, the enrichment score (ES) and the p-values. D. UCSC genome browser view showing Pol II and H3K27ac profiles at the Myh4 locus.