Figure 1: Differential protein expression in MDA-MB-231 cells treated with H2O2.

(a) 2D-PAGE separation and silver staining of MDA-MB-231 cells treated by control (left) and 0.5 mM H2O2 for 30 min (right). (b) Proteins altered by H2O2 treatment (Supplementary Table 1) were analyzed using protein interaction data retrieved from STRING. Lines indicate protein-protein interactions with confidence coefficient higher than 0.7.