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. Author manuscript; available in PMC: 2013 Mar 1.
Published in final edited form as: Biochim Biophys Acta. 2011 Jun 25;1820(3):417–426. doi: 10.1016/j.bbagen.2011.06.019

Figure 5.

Figure 5

Citrate-assisted iron removal from hTf/2N. The ESI mass spectra were obtained from 6 μM solutions of holo-hTf/2N in 10 mM NH4CH3CO2/0.03 mM (NH4)2C6H6O7 (a, b) and 10 mM NH4CH3CO2/0.15 mM (NH4)2C6H6O7 (c). The ESI interface conditions used in these measurements were identical to those used to obtain the mass spectrum shown in Figure 1e. Reproduced with permission from [5].