Distribution around exons of pentamer weights assigned by SVM. The top 256 pentamers were divided into four groups according to their origins (downstream or upstream) and signs of their weights (positive or negative). For each group, the SVM weights assigned to each pentamer were summed for pentamers that started in nonoverlapping windows of 5 nt on either side of 15,000 real exons, 24,000 pseudo exons, and 12,000 repeat-free pseudo exons. Values for upstream pentamers only are shown on the left and for downstream pentamers only on the right (i.e., values derived from exclusively upstream pentamers are not plotted on the downstream side and vice versa). Top: positively-weighted pentamers; bottom: negatively-weighted pentamers
