fig2

Figure 2. Basal protein levels were differently expressed in the A549 and A549BTZR cells. (A) Western blot analysis was used to detect the basal expression levels of several proteins in the A549 and A549BTZR cells. The blots are representative of at least three separate experiments. β-actin was used as a loading control; (B) Scans showing the ratio A549BTZ/A549. ^*P < 0.01.