Figure 4

The patterns extracted by EPIG from the combined UV- and IR- treated data. In each of these patterns, 1 to 18, the first half with open circles were UV-treated and the second half with solid circles were IR-treated. For each treatment, there were three individual cell lines, F1-HTERT, F3-HTERT and F10-HTERT, positioned from left to right. Each cell line consisted of eight data points with four different treatment conditions, i.e., sham-treatment and 2, 6, and 24 h post-treatment colored red, green, blue and magenta, respectively. The vertical axes with zero at the middle are the changes in gene expression (log2 intensity) relative to the sham-treated controls.