Figure 2

Classification of TSSs obtained with RNAseq. (a) Illustration of categories for TSS classification based on genomic context. The first TSS classification level is divided into two categories: TSSs that belong to annotated genes (gray shaded arrows) and TSSs that belong to new transcripts (black shaded arrows). TSSs belonging to annotated genes were classified into single TSSs or multiple TSSs. TSSs belonging to new transcripts were arranged into antisense, intragenic or intergenic TSSs. (b) Identification, filtering, and classification of TSSs. From the automatically detected TSSs those TSSs were removed that belong to rRNA or tRNA, false-positive, or alternative TSSs.