<i>E-</i>Olefin Dipeptide Isostere Incorporation into a Polypeptide Backbone Enables Hydrogen Bond Perturbation: Probing the Requirements for Alzheimer's Amyloidogenesis
作者:Yanwen Fu、Jan Bieschke、Jeffery W. Kelly
DOI:10.1021/ja0551382
日期:2005.11.1
Herein, we report a stereospecific E-olefin dipeptide isostere synthesis that can be used to make gram quantities of the Phe-Phe isostere desired for eliminating a specific backbone H-bond donor and acceptor in the Alzheimer's disease related Abeta peptide. The Phe19-Phe20 E-olefin analogue of Abeta(1-40) was prepared by solid-phase peptide synthesis and was subjected to amyloidogenesis conditions
在此,我们报告了一种立体特异性 E-烯烃二肽等排体合成,可用于制造克数量的 Phe-Phe 等排体,用于消除阿尔茨海默病相关 Abeta 肽中的特定骨架 H 键供体和受体。Abeta(1-40) 的 Phe19-Phe20 E-烯烃类似物是通过固相肽合成制备的,并受到淀粉样蛋白生成条件的影响。这种类似物可以聚集成球形形态,但不会像全酰胺序列那样继续形成原原纤维或原纤维,从而深入了解淀粉样变性的结构要求。