Factors Affecting Splicing Strength of Yeast Genes
Figure 1
Sequence logos of 5′ ss (a) and 3′ ss (b), produced with the background frequencies specified as A 0.3279, C 0.1915, G 0.2043, and U 0.2763. The nucleotides whose frequencies are lower than expected are plotted upside down. The vertical bar is the information index computed as , where is the frequency of nucleotide at each site.