NOTE ABOUT WEB BROWSERS: Sometimes, the graphs may appear very poor in the browser. It may be better to use another program to see the graphs. You can right-click on the link and save the file using "Save target as". Typically, we observed that only a small subset of all possible motif combinations appears to show interesting interactions. This is illustrated in the motif interactions figure. In this figure, each motif is represented by a point along the circle. An interaction between two motifs is shown as a line joining the two motifs. The number of times a motif pair appears within an interaction cluster is represented by the color scale (shown at the bottom of the figure).