Figure 7

Median intensity for each peptide in each of the 3 cancer groups is plotted as the ratio versus the median intensity of the counterpart in the control group (r = patient/control). Ratios are plotted on a log scale ranging from 0.1 to 10. Bars pointing to the left (r < 1) or right (r > 1) indicate, respectively, lower or higher median intensities in a cancer group as compared with the control group. Peptides that didn’t show much difference in median ion intensity between patient and control groups map closely to or onto the center line (r = 1).