Synthesis and 12-Helical Secondary Structure of β-Peptides Containing (2<i>R</i>,3<i>R</i>)-Aminoproline
作者:Emilie A. Porter、Xifang Wang、Margaret A. Schmitt、Samuel H. Gellman
DOI:10.1021/ol0266370
日期:2002.9.1
(2R,3R)-Aminoproline, A pyrrolidine-based beta-amino acid, was synthesized and incorporated into hexa-beta-peptide 4. This residue confers water solubility when the ring nitrogen is protonated and allows for 12-helix formation in aqueous solution. Circular dichroism spectra display the 12-helical signature, and 12-helical structure was confirmed by 2D NMR analysis.
(2R,3R)-Aminoproline(一种基于吡咯啶的β-氨基酸)被合成并整合到六β-肽4中。该残基在环氮质子化时赋予水溶性,并允许在水溶液中形成12股螺旋结构。圆二色光谱显示了12股螺旋的特征,而12股螺旋结构通过二维核磁共振分析得到了确认。