Tetrapeptidic Molecular Hydrogels: Self-assembly and Co-aggregation with Amyloid Fragment Aβ1-40
作者:Marta Tena-Solsona、Juan F. Miravet、Beatriu Escuder
DOI:10.1002/chem.201302651
日期:2014.1.20
A new family of isomeric tetrapeptides containing aromatic and polar amino acid residues that are able to form molecular hydrogels following a smooth change in pH is described. The hydrogels have been studied by spectroscopic and microscopic techniques showing that the peptide primary sequence has an enormous influence on the self‐assembly process. In particular, the formation of extended hydrophobic
描述了一个新的异构四肽家族,其中含有芳香族和极性氨基酸残基,能够在pH值平稳变化后形成分子水凝胶。通过光谱和显微镜技术对水凝胶进行了研究,结果表明肽的一级序列对自组装过程具有巨大的影响。尤其是,扩展的疏水区域的形成和π堆积相互作用的出现已被揭示为聚集的驱动力。此外,已经研究了这些化合物与淀粉样蛋白肽片段Aβ1–40的相互作用,其中一些已被证明可作为该肽聚集为非β片状原纤维结构的模板。这些化合物可能潜在地用于捕获有毒的可溶性淀粉样蛋白低聚物。