Figure 1From: Selection against tandem splice sites affecting structured protein regionsFrequency of tandem splice sites in the CDS and UTR. Each bar is the percentage of human introns having a tandem donor (A) or acceptor (B). Introns are divided into a location in the CDS (blue) and the UTR (green). CDS introns are further divided into a location in ordered and disordered protein regions (light blue). Absolute numbers are given above the bars.Back to article page