By cofactor redesign, self-sufficient monooxygenases could be prepared. Tight binding of N-alkylated flavins to riboflavin-binding protein results in the creation of artificial flavoenzymes capable of H2O2-driven enantioselective sulfoxidations. By altering the flavin structure, opposite enantioselectivities could be achieved, in accordance with the binding mode predicted by in silicoflavin-protein docking of the unnatural flavin cofactors. The study shows that cofactor redesign is a viable approach to create artificial flavoenzymes with unprecedented activities.
通过辅因子重设计,可以制备自给自足的单氧化酶。N-烷基化黄素与
核黄素结合蛋白的紧密结合会产生能够驱动
过氧化氢进行对映选择性亚磺氧化反应的人工黄酶。通过改变黄素结构,可以实现相反的对映选择性,这与通过计算机模拟的不天然黄素辅因子的结合模式预测一致。该研究表明,辅因子重设计是一种创造具有前所未有活性的人工黄酶的可行方法。