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. Author manuscript; available in PMC: 2012 Dec 18.
Published in final edited form as: J Am Soc Mass Spectrom. 2012 Aug 7;23(10):1689–1696. doi: 10.1007/s13361-012-0423-x

Figure 1.

Figure 1

Schematic of (a) a typical 150 kDa IgG, (b) an ~27 kDa single chain (scfv) antibody, and (c) an scfv directly labeled with a mass tag