Figure 7: Clustering solution for a specimen of 32 protein samples in which Master Mix spectrum was subtracted with preprocessing function of noise reduction for every single protein spectra. Specimen is composed of 4 proteins and 8 samples for each protein. Proteins are: CDK2, PTP II, p53 and SRC. Green cluster is for X labeled samples, Red cluster for + labeled samples, Pink cluster for Δ labeled sample and Blue cluster for O labeled samples.