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. Author manuscript; available in PMC: 2013 Jun 21.
Published in final edited form as: J Phys Chem B. 2012 May 31;116(24):7138–7144. doi: 10.1021/jp303269m

Figure 3.

Figure 3

1D cross-sections of the 2D spectra shown in Figure 2 for [U-13C,15N] ubiquitin. The 15N frequencies are given in each panel. The STD-NCA 1D cross sections (A, C) can be directly compared with those of the SIM1-NCA dataset (B, D). As expected these peak intensities are identical. The STD-NCO cross sections (E, G) are directly compared to those of the SIM2-NCO (F, H). The noise level is the same in all 1D spectra. The spectra in panels E and F correspond to side chain 15NH2 resonances.