Development of a Model System for the Study of Long Distance Electron Transfer in Peptides
作者:Meike Cordes、Olivier Jacques、Agnieszka Köttgen、Christian Jasper、Hassen Boudebous、Bernd Giese
DOI:10.1002/adsc.200700605
日期:2008.5.5
We have designed and synthesized a peptide model in which stepwise electron transfer (ET) through amino acid side chains could be observed. An injection system, which generates an electron hole upon laser irradiation, was connected directly to the aromatic side chain of a modified C-terminal amino acid. This electron acceptor could be observed by transient absorption spectroscopy. The N-terminal amino
我们已经设计并合成了一种肽模型,其中可以观察到通过氨基酸侧链的逐步电子转移(ET)。将在激光照射下产生电子空穴的注入系统直接连接到修饰的C端氨基酸的芳族侧链上。该电子受体可以通过瞬态吸收光谱法观察到。N末端氨基酸酪氨酸充当电子给体,在瞬态吸收光谱中给出不同的信号。合成了其他非天然可氧化芳香族氨基酸作为光谱传感器,以检测作为远距离ET中化学中间体的氧化氨基酸侧链。