The spots listed in this table represent those that were either up- or down-regulated in three out of three microarray experiments as described in Materials and Methods. The Cy3/Cy5 signal ratios are indicated for all three microarray experiments at each time point. Note that the Cy3/Cy5 ratios for “Microarray #3” are reversed relative to the other two, since the fluorescent tag used to label wild-type and mutant RNA was swapped as described in Materials and Methods.