Large Structural Modification with Conserved Conformation: Analysis of Δ<sup>3</sup>-Fused Aryl Prolines in Model β-Turns
作者:Guillaume Jeannotte、William D. Lubell
DOI:10.1021/ja0471222
日期:2004.11.1
For the first time, the influence of a fused Delta3-arylproline on peptide conformation has been studied by the synthesis and comparison of the conformations of peptides containing proline and pyrrolo-proline, 3 (PyPro). Pyrrolo-proline was demonstrated to be a conservative replacement for Pro in model beta-turns, 4 and 5, as shown by their similar DMSO titration curves, cis/trans-isomer populations, and NOESY spectral data. Pyrrolo-proline may thus be used for studying the structure activity relationships of Pro-containing peptides with minimal modification of secondary structures.