Table 1.
Comparison of the C>H chemical shifts of threonine 7, 9, 12 and 14 between the wild-type peptide and the Gly-10 deletion peptide
Peptide | C>H chemical shift (ppm) | |||
Thr-7 | Thr-9 | Thr-12 | Thr-14 | |
U(1–17)a | 1.20 | 1.20 | 1.16 | 1.12 |
desG10(1–16)b | 1.217 | 1.204 | 1.183 | 1.184 |
a The assignments of U(1–17) were adopted from Zerella et al. (1999).
b The NMR spectra of desG10(1–16) were recorded in aqueous solution (pH 1.9) at 280 K to take advantage of the enhanced solubility of the peptide at the lower pH. These C>H chemical shifts are independent of pH over the pH range 1.18–8.48 examined.