Fast and Tight Boronate Formation for Click Bioorthogonal Conjugation
作者:Burcin Akgun、Dennis G. Hall
DOI:10.1002/anie.201510321
日期:2016.3.14
A new click bioorthogonal reaction system was devised to enable the fastligation (kON≈340 m−1 s−1) of conjugatable derivatives of a rigid cyclic diol (nopoldiol) and a carefully optimized boronic acid partner, 2‐methyl‐5‐carboxymethylphenylboronic acid. Using NMR and fluorescence spectroscopy studies, the corresponding boronates were found to form reversibly within minutes at low micromolar concentration
新的点击生物正交反应系统设计成使快速连接(ķ ON ≈340 米-1 小号-1)一个刚性的环状二醇(nopoldiol)和仔细优化硼酸伙伴的缀合衍生物,2-甲基-5-羧甲基苯基硼酸。使用NMR和荧光光谱研究,发现对应于硼酸酯在水中低微摩尔浓度分钟内可逆地形成,从而提供亚微摩尔的平衡常数(ķ当量≈10 5 -10 6 米-1)。用模型蛋白硫氧还蛋白和白蛋白证明了在生理条件下的有效蛋白结合,并通过质谱和凝胶电泳进行了表征。