Fig. 2
An Illustration of peak clusters generated by SELDI-TOF MS proteomic profiling. Marked values represent significant mass/charge (m/z) protein peaks. The differential expression of proteins between cancer and control spectra is illustrated in this figure. Few of the differentially expressed peaks between the two groups are detected in a very narrow region of the spectra between 3.6 and 4.2Â kDa. Horizontal and vertical axes represent m/z in Daltons and peak intensity in microampere, respectively