Figure 8
From: Comparative analysis of sequence features involved in the recognition of tandem splice sites
Annotation of A5EΔ4 splicing exons in REFSEQ genes. Percentages refer to fractions of A5EΔ4 splicing exons located in the 5'-UTR, coding sequence (CDS) region, or 3'-UTR. A black-colored "s" indicates the position of the stop codon relative to the REFSEQ transcript structure, whereas the red-colored version indicates the altered stop codon due to tandem donor splicing. A5EΔ4 splicing exons embedded within CDS regions are broken down into two categories, depending on the creation of a premature (PTC) or delayed termination codon (DTC). PTCs can signal mRNAs as substrates for non-sense mediated decay.