Chemical synthesis of membrane proteins: a model study on the influenza virus B proton channel
作者:A. C. Baumruck、D. Tietze、L. K. Steinacker、A. A. Tietze
DOI:10.1039/c8sc00004b
日期:——
optimized a robust strategy for the synthesis of highly hydrophobic peptides, especially membrane proteins, exemplarily using the influenza B M2 proton channel (BM2(1–51)). This strategy is based on the native chemical ligation of two fragments, where the thioester fragment is formed from an oxo-ester peptide, which is synthesized using Fmoc-SPPS, and features an in situ cleavable solubilizing tag (ADO, ADO2
在本研究中,我们已经开发并优化了一种强大的策略,用于合成高疏水性肽,尤其是膜蛋白,例如使用B型流感M2质子通道(BM2(1-51))。此策略基于两个片段的天然化学连接,其中硫酯片段由使用Fmoc-SPPS合成的氧代酯肽形成,并具有原位可裂解的溶解标签(ADO,ADO 2或ADO-赖氨酸5)。几乎定量生产连接产物,然后进行优化的后处理方案,从而导致几乎定量的脱硫和Acm基团裂解。在POPC脂质膜中的圆二色性分析表明,合成的BM2(1-51)结构采用类似于先前表征的BM2(1-33)的螺旋结构。