Synthesis and Photochemistry of a New Class of Photocleavable Protein Cross-linking Reagents
作者:Lilia Milanesi、Gavin D. Reid、Godfrey S. Beddard、Christopher A. Hunter、Jonathan P. Waltho
DOI:10.1002/chem.200305405
日期:2004.4.2
A new series of photocleavable protein cross-linking reagents based on bis(maleimide) derivatives of diaryl disulfides have been synthesised. They have been functionalised with cysteine and transient absorption spectra for the photolysis reaction have been recorded by using the pump-probe technique with a time resolution of 100 femtoseconds. Photolysis of the disulfide bond yields the corresponding
合成了一系列基于二芳基二硫化物的双(马来酰亚胺)衍生物的新型光裂解蛋白交联剂。它们已经用半胱氨酸功能化,并且已经通过使用时间分辨率为 100 飞秒的泵探针技术记录了光解反应的瞬态吸收光谱。二硫键的光解在不到一皮秒的时间内产生相应的硫基自由基。有大量的双子重组,但一些自由基逃离溶剂笼,光裂解的量子产率为 30% 在水中。