Experimentally verified inter-residue contacts between Trp 6 and aliphatic side chains.

1H-1H NOE cross-peaks of the TC5b all-trans Pro isomer denatured in 6 M urea. Shown are all detected and assigned sequential and non-sequential NOE contacts between side chain 1H nuclei of Trp 6 (bold) and protons of those side chains found to be associated with the tryptophan residue in the chemically denatured state; contacts involving HN, Hα, and/or Trp Hβ protons cannot be seen in this region of the spectrum. The numbers shown in brackets correspond to the assignment scheme of the respective NOE cross-peak as shown in Figure 4.