Figure 3.

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 45ยบ 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
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