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. Author manuscript; available in PMC: 2016 Aug 4.
Published in final edited form as: Anal Chem. 2015 Jul 22;87(15):7540–7544. doi: 10.1021/acs.analchem.5b01410

Figure 1.

Figure 1

Average number of TMT labels on 3xFlag-GFP measured by intact mass spectrometry at four time points (10, 30, 60, and 300s). 3xFlag-GFP has 25 lysine residues (error bars correspond to 1 standard deviation).