Figure 2.
Transcriptional complexity of a gene. Hypothetical gene cluster with detailed zoom-in for highlighted gene demonstrates that a single gene can have multiple transcriptional start sites (TSSs) as well as many interleaved coding and noncoding transcripts. Exons are shown as red boxes and TSSs are green right-angled arrows. Known short RNAs such as snoRNAs and miRNAs can be processed from intronic sequences and novel species of short RNAs that cluster around the beginning and ends of genes have recently been discovered (see text).
