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. Author manuscript; available in PMC: 2008 Oct 20.
Published in final edited form as: J Proteome Res. 2005;4(2):424–434. doi: 10.1021/pr049804u

Figure 5.

Figure 5

Time course study demonstrating the appearance of peptide products after proteolysis of synthetic Aec-modified phosphopeptide α-S1 casein 106–119. (A.) Quantification of ion abundances of peptide α-S1 casein 106–115 (▲–▲) and peptide α-S1 casein 106–114 (■–■) after trypsin proteolysis (10 μg total, 37 °C) at sampling times of 0, 15, 30, 60, 120, and 180 min (duplicate samples). (B.) Quantification of ion abundances of peptide α-S1 casein 106–115 (▲–▲) and peptide α-S1 casein 106–114 (■–■) after proteolysis with endoproteinase Lys-C (5 μg total, 37 °C) at sampling times of 0, 15, 30, 60, 120, and 180 min (duplicate samples).