The switch-on luminescence sensing of histidine-rich proteins in solution: a further application of a Cu2+ ligand
作者:Bin Wang、Yang Gao、Hong-Wei Li、Zhi-Peng Hu、Yuqing Wu
DOI:10.1039/c1ob05372h
日期:——
A new probe/Cu2+ complex for the detection of his-tagged protein has been developed, based on an improved probe, Dansyl-Gly-Py (1), by closely mimicing the structure of a peptide, ATCUN. In aqueous solution, 1/Cu2+ has good selectivity to histidine and cysteine, and further can detect histidine-rich protein by releasing the quenched fluorescence of 1.
基于改进的探针 Dansyl-Gly-Py(1),通过密切模拟多肽 ATCUN 的结构,开发了一种用于检测 his 标记蛋白质的新型探针/Cu2+复合物。在水溶液中,1/Cu2+ 对组氨酸和半胱氨酸具有良好的选择性,并能通过释放 1 的淬灭荧光进一步检测富含组氨酸的蛋白质。