Comparison of A-GLAM, GLAM and AlignACE. Figure 4 shows the prediction performance of A-GLAM, GLAM, and AlignACE on 52 test data sets. (The Methods section gives a brief explanation of the data sets.) The data sets are arranged on the x-axis in the following order (1) 1–6, fly;(2) 7–18, mouse;(3) 19–26, yeast; and (4) 27–52, human. The y-axis (correlation coefficient) indicates how closely the alignments found by the 3 programs resemble the transcription factor binding site.