SWIT results showing the distribution of targeting preferences for the N-terminal presequences. For each gene, the neural network scores (y axis) of the TargetP prediction are plotted for the N-terminal 150 amino acids (x axis) in the following colors: green, plastid TP; light blue, mitochondrial TP; yellow, SP for secretory pathway; and gray, other location. Thus, the y intercepts correspond to the simple TargetP predictions. Triangles above each plot indicate the predicted cleavage sites: green, sites for plastid TP that appeared in the SWIT analysis; light blue, sites for mitochondrial TP (only for PmSOD1); and yellow, sites for SP as predicted by SignalP-HMM. The homologous region is shown in gray on each plot.