Scatter plot analysis of labeled peptides. The plot compares the different stable isotope labeled peptides (represented as circles) as follows: a) medium/light and b) heavy/medium. The 45º slope line shows a situation with no variation between the compared peptides, and circles that do not match in this line represent the peptides that were found to be differentially abundant. A) regular peptides; B) phosphorylated peptides.
Halcsik et al. BMC Cell Biology 2013 14:47 doi:10.1186/1471-2121-14-47