硝基苯
胺化
生物催化
化学
催化作用
血红素
酶
双加氧酶
生物化学
蛋白质工程
定向进化
活动站点
基质(水族馆)
组合化学
立体化学
生物
反应机理
突变体
基因
生态学
作者
María Agustina Vila,Viktoria Steck,Sonia Rodríguez Giordano,Ignacio Carrera,Rudi Fasan
出处
期刊:ChemBioChem
[Wiley]
日期:2020-03-31
卷期号:21 (14): 1981-1987
被引量:26
标识
DOI:10.1002/cbic.201900783
摘要
Abstract Expanding the reaction scope of natural metalloenzymes can provide new opportunities for biocatalysis. Mononuclear non‐heme iron‐dependent enzymes represent a large class of biological catalysts involved in the biosynthesis of natural products and catabolism of xenobiotics, among other processes. Here, we report that several members of this enzyme family, including Rieske dioxygenases as well as α‐ketoglutarate‐dependent dioxygenases and halogenases, are able to catalyze the intramolecular C−H amination of a sulfonyl azide substrate, thereby exhibiting a promiscuous nitrene transfer reactivity. One of these enzymes, naphthalene dioxygenase (NDO), was further engineered resulting in several active site variants that function as C−H aminases. Furthermore, this enzyme could be applied to execute this non‐native transformation on a gram scale in a bioreactor, thus demonstrating its potential for synthetic applications. These studies highlight the functional versatility of non‐heme iron‐dependent enzymes and pave the way to their further investigation and development as promising biocatalysts for non‐native metal‐catalyzed transformations.
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