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. Author manuscript; available in PMC: 2012 Nov 7.
Published in final edited form as: Phys Chem Chem Phys. 2011 Mar 14;13(41):18288–18296. doi: 10.1039/c1cp20277d

Figure 1.

Figure 1

Nanoelectrospray mass spectra of 10 μM BS<sup>3</sup>-crosslinked cytochrome <i>c</i> in 200 mM ammonium acetate(pH 7.2) solution containing 0 to 1.5% <i>m</i>-NBA. For each charge state, there are peaks corresponding to between two and seven crosslinks, with different numbers of dead-end crosslinks (inset). Only intact crosslinks were included in average and maximum charge calculations.