Turning a riboflavin-binding protein into a self-sufficient monooxygenase by cofactor redesign
作者:Gonzalo de Gonzalo、Christian Smit、Jianfeng Jin、Adriaan J. Minnaard、Marco W. Fraaije
DOI:10.1039/c1cc14039f
日期:——
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.
Exploring the biocatalytic scope of a bacterial flavin-containing monooxygenase
作者:Ana Rioz-Martínez、Malgorzata Kopacz、Gonzalo de Gonzalo、Daniel E. Torres Pazmiño、Vicente Gotor、Marco W. Fraaije
DOI:10.1039/c0ob00988a
日期:——
A bacterial flavin-containing monooxygenase (FMO), fused to phosphite dehydrogenase, has been used to explore its biocatalytic potential. The bifunctional biocatalyst could be expressed in high amounts in Escherichia coli and was able to oxidize indole and indole derivatives into a variety of indigo compounds. The monooxygenase also performs the sulfoxidation of a wide range of prochiral sulfides, showing moderate to good enantioselectivities in forming chiral sulfoxides.
4-Hydroxyacetophenone monooxygenase from Pseudomonas fluorescens ACB as an oxidative biocatalyst in the synthesis of optically active sulfoxides
作者:Gonzalo de Gonzalo、Daniel E. Torres Pazmiño、Gianluca Ottolina、Marco W. Fraaije、Giacomo Carrea
DOI:10.1016/j.tetasy.2005.11.024
日期:2006.1
sulfoxidation reactions on a set of aromatic sulfides. With a few exceptions, excellent enantioselectivities in the synthesis of chiral phenyl and benzyl sulfoxides were achieved. The bacterial Baeyer–Villiger monooxygenase was also shown to accept racemic sulfoxides, a prochiral diketone and an organoboron compound as substrates. This study demonstrates the great biocatalytic potential of this novel oxidative
Expanding the toolbox of Baeyer–Villiger and flavin monooxygenase biocatalysts for the enantiodivergent green synthesis of sulfoxides
作者:Jingyue Wu、Silvia Anselmi、Alexandra T. P. Carvalho、Jill Caswell、Derek J. Quinn、Thomas S. Moody、Daniele Castagnolo
DOI:10.1039/d4gc02657h
日期:——
Two new monooxygenase biocatalysts, the Baeyer–Villigermonooxygenase BVMO145 and the flavin monooxygenase FMO401 from Almac library, have been found to catalyse the enantiodivergent oxidation of sulfides bearing N-heterocyclic substituents into sulfoxides under mild and green conditions. The biocatalyst BVMO145 provides (S)-sulfoxides while the flavin monooxygenase FMO401 affords (R)-sulfoxides with
两种新的单加氧酶生物催化剂,Baeyer-Villiger 单加氧酶 BVMO145 和来自 Almac 库的黄素单加氧酶 FMO401,被发现可以在温和和绿色条件下催化带有 N-杂环取代基的硫化物对映异构氧化成亚砜。生物催化剂 BVMO145 提供 ( S )-亚砜,而黄素单加氧酶 FMO401 提供 ( R )-亚砜,具有良好的转化率和高 ee。
Oxidations catalyzed by phenylacetone monooxygenase from Thermobifida fusca
作者:Gonzalo de Gonzalo、Daniel E. Torres Pazmiño、Gianluca Ottolina、Marco W. Fraaije、Giacomo Carrea
DOI:10.1016/j.tetasy.2005.08.004
日期:2005.9
Several organic sulfides, ketones and other organic systems have been tested as substrates in oxidation reactions catalyzed by the recently discovered phenylacetone monooxygenase from Thermobifida fusca. The biocatalytic properties of this Baeyer-Villiger monooxygenase have been studied, revealing reactivity with a large range of sulfides and ketones. Oxidations of several sulfoxides, an amine and an organoboron compound were also observed. The enzyme is able to oxidize a number of sulfides with excellent enantioselectivity, demonstrating the catalytic potential of this novel biocatalyst. (C) 2005 Elsevier Ltd. All rights reserved.