Figure 2From: Functional protease profiling with reporter peptides in serum specimens of colorectal cancer patients: demonstration of its routine diagnostic applicabilityCalibration curve of anchor peptide m/z 515,795. Measurements for each CP-AP concentration (0.4; 4; 20 and 50 μmol/L) were performed in triplicate and linear regression was calculated with median values. Error bars indicate the standard deviation. Coefficient of determination (R2) is displayed in the graph.Back to article page