Fig. 5.

Novel isoform identifications. (A) Pie chart of different novel junction types in 655 novel isoforms of existing genes. N5U, novel 5′-UTR; N3U, novel 3′-UTR; N5S, novel 5′-splice site; N3S, novel 3′-splice site; IR, intron retention; ES, exon skipping; InterG, intergenic proximal. Examples are in Fig. 6. (B) Abundance distributions of novel isoform predictions and annotated detections. Approximately 35% novel isoforms have RPKM >10.