摘要:
An enzymatic process is described for the production of chemicals from carbon sources. In particular, according to one aspect, a process for the production of a target organic compound from a carbon source by a cell-free enzyme system is disclosed.
摘要:
An enzymatic process is described for the production of chemicals from carbon sources. In particular, according to one aspect, a process for the production of a target organic compound from a carbon source by a cell-free enzyme system is disclosed.
摘要:
Provided are enzymatic processes for the production of chemicals like ethanol from carbon sources like glucose, in particular, a process for the production of a target chemical is disclosed using a cell-free enzyme system that converts carbohydrate sources to the intermediate pyruvate and subsequently the intermediate pyruvate to the target chemical wherein a minimized number of enzymes and only one cofactor is employed.
摘要:
The present invention relates to a novel process for converting a substrate of formula (III) and/or (IV) into a product of formula (I) or (II) comprising the following reactions: a) oxidation of at least one terminal C-atom, b) dehydratation, c) decarboxylation and d) reduction and/or amination. At least step b is enzyme-catalyzed. In a preferred embodiment, all reactions are enzymatically catalyzed. The enzymes catalyzing the reactions are selected from oxidoreductases, decarboxylases, dehydratases and/or aminotransferases. The process may be performed in a cell-free in vitro production system or in an improved fermentative production system.
摘要:
The invention relates to a method for the amination of at least one keto group in a multicyclic ring system comprising at least one keto group into an amino group, using at least one enzyme E having transaminase activity.
摘要:
The present invention relates to a cell, which has been genetically modified relative to its wild type, so that in comparison with its wild type it is able to produce more ω-aminocarboxylic acids, more ω-aminocarboxylic acid esters or more lactams derived from ω-aminocarboxylic acids, starting from carboxylic acids or carboxylic acid esters. Furthermore, the present invention relates to a method for the production of a genetically modified cell, the cells obtainable by this method, a method for the production of ω-aminocarboxylic acids, of ω-aminocarboxylic acid esters or of lactams derived from ω-aminocarboxylic acids, the ω-aminocarboxylic acids, ω-aminocarboxylic acid esters or lactams derived from ω-aminocarboxylic acids obtainable by this method, a method for the production of polyamides based on ω-aminocarboxylic acids or based on lactams and the polyamides obtainable by this method.
摘要:
The presented invention refers to a method for the creation of gene libraries wherein a defined number of adjacent nucleotides is exchanged and gene libraries are produced which code for protein variants having more manifold amino acid exchanges and a more homogenous distribution of mutations than can be obtained using conventional methods. DNA-strands are incorporated at random positions into a gene of interest. Then parts of the donor strands and parts of the gene sequence that is flanking these strands are removed, however, a defined number (e.g. 3) of nucleotides that originate from the donor strand remain in the gene at the place of a defined number (e.g. 3) of nucleotides of the original gene having been removed from it. Combined with a selection step after the incorporation of the donor strand into the gene it can be ensured that the nucleotides to be exchanged/introduced are in a specific reading frame. When the nucleotides of the donor strand that remain in the genes are degenerate, gene libraries can be produced with variants that have any codon at any position.
摘要:
The present invention relates to a cell, which has been genetically modified relative to its wild type, so that in comparison with its wild type it is able to produce more ω-aminocarboxylic acids, more ω-aminocarboxylic acid esters or more lactams derived from ω-aminocarboxylic acids, starting from carboxylic acids or carboxylic acid esters. Furthermore, the present invention relates to a method for the production of a genetically modified cell, the cells obtainable by this method, a method for the production of ω-aminocarboxylic acids, of ω-aminocarboxylic acid esters or of lactams derived from ω-aminocarboxylic acids, the ω-aminocarboxylic acids, ω-aminocarboxylic acid esters or lactams derived from ω-aminocarboxylic acids obtainable by this method, a method for the production of polyamides based on ω-aminocarboxylic acids or based on lactams and the polyamides obtainable by this method.
摘要:
The invention relates to a method for the amination of at least one keto group in a multicyclic ring system comprising at least one keto group into an amino group, using at least one enzyme E having transaminase activity.
摘要:
The present invention relates to a novel process for converting a substrate of formula (III) and/or (IV) into a product of formula (I) or (II) comprising the following reactions: a) oxidation of at least one terminal C-atom, b) dehydratation, c) decarboxylation and d) reduction and/or amination. At least step b is enzyme-catalyzed. In a preferred embodiment, all reactions are enzymatically catalyzed. The enzymes catalyzing the reactions are selected from oxidoreductases, decarboxylases, dehydratases and/or aminotransferases. The process may be performed in a cell-free in vitro production system or in an improved fermentative production system.