骨架修饰是一种常用的化学工具,用于控制线性肽的构象,并探索对其生化和生物物理特性的潜在有用影响。硫代酰胺 psi[CS-NH] 基团是酰胺(肽)功能的近等排结构模拟物。在本文中,我们描述了三种精心挑选的脂肽生物 [Leu(11)-OMe] 毛虫素 GA IV 的肽类似物的溶液合成、化学表征、优选构象以及膜和生物活性。在每个类似物中,加入了一个单一的硫代酰胺置换。研究了靠近 N 端、中心和靠近 C 端的序列位置。
New membrane-modifying peptides, trichorozins I-IV, have been isolated from conidia of the fungus Trichodermaharzianum. Their amino acid sequences were clearly determined by spectrometric methods and, furthermore, they were synthesized by the solution-phase method. Trichorozins are a family of the class of peptaibols and are composed of 11 residues including an amino alcohol. Trichorozins exhibited