Microarray expression data



We downloaded DNA microarray data from the Stanford Microarray Database, retrieving 1202 human, 155 fly, and 643 yeast microarray experiments.  We also had collected 979 C. elegans microarray experiments from various laboratories from around the country. At the time of the analysis, 348 of the worm experiments were publicly available while the rest were unpublished. The raw microarray data are available at the Stanford Microarray Database, and a list of the microarrays used in this paper can be found in Table S2..