Figure 2. Nucleolar RNA is enriched in specific intron‐encoded aluRNAs.
- Left: Scheme illustrating the origin of forward or reverse intronic aluRNA and processing into left arm aluRNAs (aluRNAL) and right arm aluRNAs (aluRNAR). Right: Heatmaps of read density of forward and reverse intronic Alu RNA species present in the total RNA sample.
- Top: Heatmaps of read density of intronic Alu repeats in the nucleolar RNA fraction. For each aluRNA variant, the percentage over all transcribed intronic Alu repeats is indicated. Bottom: Ratio of nucleolar versus total RNA from higher (red) to lower (green) read density.
- View of nucleolus‐enriched Alu elements exemplified at two genomic loci. Mapping of normalized reads from total (red), nucleoplasmic (orange) and nucleolar (blue) RNA to intron #5 of DCP1A and intron #22 of UBE4B.
- Heatmaps of total RNA read density ratios between untreated (control) and α‐amanitin‐ or ML‐60218‐treated HeLa cells.