Figure 3. GRO-seq reads localization along exons and introns.

Exons were aligned by their 3′ss (left panel) or by their 5′ss (right panel). The dashed line represents the exon/intron junction. Exons were divided into five bins based on microarray-based transcript expression levels in lung fibroblasts obtained from [27]. Insets present blowups of the regions marked by black rectangles.