Figure iv. Genes affected by Yap1p are differentially expressed. The wild type and yap1 strains were exposed to hydrogen peroxide treatment in duplicate, and approximately 70 genes whose expression was affected by deletion of Yap1 were identified as dependent on the factor. Many of these genes fell into the three clusters. The expression of Yap1-dependent genes in the "TRR2 cluster," "TRR1 cluster," and "TRX2 cluster" in response to environmental shifts is shown. Presence of the Yap1p consensus binding site within 600 bp of the gene start site is depicted by a blue box. Color scale and array identification are shown. An asterisk in the gene annotation indicates genes likely to cross-hybridize on the arrays.