Proportion of uORF-containing genes in translationally controlled gene sets. The fraction of different gene sets whose UTRs contain uORFs are shown for different stress conditions labelled on the x-axis. This is compared to all 4149 TSS-mapped genes and all 708 genes showing differential regulation in any of the 4 stress conditions. A general trend of uORF enrichment is observed in the up-regulated gene sets compared to down-regulated under all stresses. Up and down-regulated genes were excluded from the "All Genes" set.