A Cofactor‐Substrate‐Based Supramolecular Fluorescent Probe for the Ultrafast Detection of Nitroreductase under Hypoxic Conditions
作者:Yang Jiao、Lei Zhang、Xu Gao、Wen Si、Chunying Duan
DOI:10.1002/anie.201915040
日期:2020.4.6
monitoring. By encapsulating a fluorescent substrate, L-NO2 , within the NADH mimic-containing metal-organic capsule Zn-MPB, we developed a cofactor-substrate-based supramolecular luminescent probe for ultrafast detection of hypoxia-related enzymes in solution in vitro and in vivo. The host-guest structure fuses the coenzyme and substrate into one supramolecular probe to avoid control by NADH, switching
鉴定低氧条件下癌细胞中酶的位置和表达水平对于早期癌症诊断和监测至关重要。通过将荧光底物L-NO2封装在含NADH模拟物的金属有机胶囊Zn-MPB中,我们开发了一种基于辅因子底物的超分子发光探针,用于在体内和体外超快速检测溶液中与缺氧相关的酶。 。宿主-客体结构将辅酶和底物融合为一个超分子探针,以避免受到NADH的控制,从而将硝基还原酶的催化过程从双底物机制转换为单底物机制。该探针通过改变底物催化过程来提高酶效率,并通过分子内途径以增强的活性来提高电子转移效率。