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. Author manuscript; available in PMC: 2017 Aug 16.
Published in final edited form as: Acc Chem Res. 2013 Mar 7;46(9):1923–1932. doi: 10.1021/ar300358z

Figure 3.

Figure 3

Aliphatic regions of 2D 13C-13C NMR spectra of a 20-residue peptide from the V3 loop of HIV-1 gp120 in the free (a) and antibody-bound (b) states, recorded in frozen solutions at 153 K and 9.39 T with MAS. The peptide is uniformly 15N,13C-labeled in seven consecutive residues, including the five non-glycine residues whose crosspeak signals are indicated by color-coded assignment paths.