通过照射尼古丁胺依赖酶以获得非自然反应性
Megan A Emmanuel1, Norman R Greenberg1, Daniel G Oblinsky1
1Department of Chemistry, Princeton University, Princeton, New Jersey 08544, USA.
Nature
|December 16, 2016
概括
研究人员开发了一种使用光和尼古丁胺辅助因子的酶催化新方法. 这种光诱导的酶变异使得新的化学转化成为可能,比如激素脱,以前传统的生物催化剂无法实现.
科学领域:
- 生物催化
- 酶工程
- 摄影化学
背景情况:
- 在不对称的催化过程中,酶提供了量身定制的选择性和效率.
- 现有的酶仅限于自然发生的反应,限制了催化多样性.
- 开发具有新型催化功能的酶是生物催化的一个关键挑战.
研究的目的:
- 开发一种方法来实现酶的催化性.
- 探索光激尼古丁胺辅助因子用于新的酶变化.
- 为了证明尼古丁胺依赖酶的新反应性.
主要方法:
- 在可见光照射下利用尼古丁胺辅助因子的光激发状态.
- 从碳缩酶转化为基基启动剂和性源.
- 已经证明了乳的反选择性基质脱.
主要成果:
- 实现了光诱导的酶杂交, 实现了新的催化功能.
- 减酶作为激素启动剂和原子源表现出新的反应性.
- 成功地进行了乳的高度反选择性激素脱,这是一个具有挑战性的反应.
结论:
- 这种方法代表了光诱导酶乱交的第一个例子.
- 生物辅助因子的激发状态可以释放现有酶的新反应性.
- 这种方法与传统的以光驱动的生物催化剂不同,以辅助因子再生为重点.
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