摘要
Artificial macrocycle with high binding selectivity in water is often challenging but urgently needed in various research and application areas.Herein,we report a new water-soluble biomimetic tetralactam macrocycle and realize the ultra-high selectivity to nucleosides over corresponding monophosphate nucleotides by rational modification.The introduction of charged groups at the periphery of endofunctionalized cavity makes the selectivity(guanosine to guanosine 5-monophosphate)increase remarkably from 100 to 1119.Based on the ultra-high selectivity of biomimetic tetralactam macrocycle,the sensitive CD73 enzyme activity assay was then achieved through product-selective fluorescence indicator displacement assay.Furthermore,the capability of the proposed method for inhibitor screening was successfully displayed.
基金
financially supported by National Natural Science Foundation of China(Nos.22174059 and 22201128)
Hunan Provincial Natural Science Foundation of China(Nos.2022JJ40363,2022JJ40365 and 2022RC1230)
the Excellent youth funding of Hunan Provincial Education Department(No.22B0460)
China Postdoctoral Science Foundation(No.2022M721542)。
