FIGURE 3.

Two-dimensional [¹H,¹⁵N]HSQC spectra of Sso AcP acquired in acetate in the absence (A) and presence (B) of 20% (v/v) TFE. The assignments of backbone amide groups are labeled. The sc labels indicate side chain peaks from tryptophan, asparagine, glutamine, or arginine residues. The latter ones are folded downfield by 33.55 ppm. Unassigned peaks are indicated by asterisks.