have led to an exploration of new and important chemical transformations; however, many of these efforts still rely on the use of low-throughput chromatography-based screening methods. We present a high-throughput strategy for screening libraries of enzyme variants for improved activity. Unpurified reaction products are immobilized to a self-assembled monolayer and analyzed by mass spectrometry, allowing
定向进化的进步导致了对新的重要
化学转化的探索;然而,许多这些努力仍然依赖于使用基于低通量色谱的筛选方法。我们提出了一种高通量策略,用于筛选酶变体文库以提高活性。未纯化的反应产物被固定在自组装单层上,并通过质谱分析,允许在一小时内直接评估数千个变体。该方法用随机突变的细胞色素 P411 变体文库进行了证明,以鉴定用于 CH 烷基化的改进催化剂。该技术可以被定制以针对需要更高通量的各种转化来进化酶活性。