Figure 1

Identification of beta-actin, HSP60, and PDI as potential housekeeping markers. The protein expression profile of liver tissue on a 2-DE gel is shown, and the zones with the protein markers, beta-actin (SSP3412), HSP 60 (SSP4503), and PDI (SSP6510), are square-bracketed. Representative gel images and the histograms illustrating the relative protein intensities (in ppm) of SSP3412, SSP4503 and SSP6510 among tumourous, T (n = 105), non-tumourous cirrhotic, NT (n = 103), and normal, N (n = 16) liver tissues are shown. Statistical analysis was performed by one-way ANOVA and p value was used as a ranking system for expression variability. Data are presented as the mean ± SD.