N-terminal dual protein functionalization by strain-promoted alkyne–nitrone cycloaddition
作者:Rinske P. Temming、Loek Eggermont、Mark B. van Eldijk、Jan C. M. van Hest、Floris L. van Delft
DOI:10.1039/c3ob00043e
日期:——
Strain-promoted alkyne–nitrone cycloadditon (SPANC) was optimized as a versatile strategy for dual functionalization of peptides and proteins. The usefulness of the dual labeling protocol is first exemplified by the simultaneous introduction of a chloroquine and a stearyl moiety, two endosomal escape-improving functional groups, into the cell-penetrating peptide hLF (human lactoferrin). Additionally
应变促进炔烃-硝酮环己二酮(SPANC)被优化为肽和蛋白质双重功能化的通用策略。首先通过将氯喹和硬脂基部分(两个内体逃逸改善功能基团)同时引入细胞穿透性肽hLF(人乳铁蛋白)来举例说明双重标记方案的实用性。此外,我们证明通过结合无金属和铜催化的点击化学,对蛋白质进行双重标记是可行的。首先,将SPANC应用于增强型绿色荧光蛋白以同时引入生物素和末端炔烃。终点站乙炔 然后用作与含叠氮基的CuAAC反应的便利锚定点 荧光素,从而证明了SPANC和CuAAC结合使用对蛋白质进行直接,双重功能化的潜力。