期刊
CHEMICAL COMMUNICATIONS
卷 58, 期 78, 页码 10989-10992出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cc03227a
关键词
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资金
- Swiss National Science Foundation through AMBIZIONE [PZ00P2_179865, PP00P2_172927]
- Swiss National Science Foundation (SNF) [PZ00P2_179865] Funding Source: Swiss National Science Foundation (SNF)
By mutating the protein, wild-type myoglobin was transformed into an artificial metalloenzyme capable of catalyzing the cyclization reaction of halogenated unsaturated compounds for the synthesis of gamma-lactams. This new activity was achieved not only in purified protein, but also in crude cell lysate and in whole cells.
Myoglobin was subjected to site-directed mutagenesis and transformed into a catalyst able to perform atom transfer radical cyclisation reactions, i.e. intramolecular atom transfer radical additions. Replacing the iron-coordinating histidine with serine, or introducing small changes inside or at the entrance of the active site, transformed the completely inactive wild-type myoglobin into an artificial metalloenzyme able to catalyse the 5-exo cyclisation of halogenated unsaturated compounds for the synthesis of gamma-lactams. This new-to-nature activity was achieved not only with purified protein but also in crude cell lysate and in whole cells.
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