title: Cloning, expression and characterization of a Baeyer-Villiger monooxygenase from Pseudomonas putida KT2440.
abstract: The gene encoding a Baeyer-Villiger monooxygenase and identified in Pseudomonas putida KT2440 was cloned and functionally expressed in Escherichia coli. The highest yield of soluble protein could be achieved by co-expression of molecular chaperones. In order to determine the substrate specificity, biocatalyses were performed using crude cell extract, growing and resting cells. Examination of aromatic, cyclic and aliphatic ketones revealed a high specificity towards short-chain aliphatic ketones. Interestingly, some open-chain ketones were converted to the alkylacetates, while for others formation of the ester products with oxygen on the other side of the keto group could also be detected yielding the corresponding methyl or ethyl esters.
authors.affiliation: Department of Biotechnology and Enzyme Catalysis, Institute of Biochemistry, Greifswald University, Greifswald, Germany.
authors.forename: Jessica
authors.initials: J
authors.lastname: Rehdorf
authors.forename: Anett
authors.initials: A
authors.lastname: Kirschner
authors.forename: Uwe T
authors.initials: UT
authors.lastname: Bornscheuer
mesh_terms: D003001:Cloning, Molecular / Q000379:methods; D004789:Enzyme Activation; D004926:Escherichia coli / Q000235:genetics / Q000378:metabolism / Q000502:physiology*; D006899:Mixed Function Oxygenases / Q000737:chemistry* / Q000235:genetics / Q000378:metabolism*; D016958:Pseudomonas putida / Q000502:physiology*; D011994:Recombinant Proteins / Q000737:chemistry / Q000378:metabolism; D013379:Substrate Specificity
chemical_list: D011994:Recombinant Proteins; D006899:Mixed Function Oxygenases