Figure 1From: Prediction of co-regulated genes in Bacillus subtilis on the basis of upstream elements conserved across three closely related speciesHistogram of PCE scores calculated from sequence alignments. (a) Three or (b) two sequences were aligned. Green bars correspond to the score of actual PCEs and yellow bars to the score of spurious PCEs generated by joining upstream regions with unrelated coding regions. In the yellow bars, the averaged values of five trials are shown with their error bars.Back to article page