摘要:
The invention provides a process for reacting a carboxylic acid ester of the formula (I) R1-A-COOR2 (I), wherein R1 is hydrogen, —CH2OH, —CHO, —COOR3, —CH2SH, —CH2OR3 or —CH2NH2, R2 is an alkyl group,R3 is hydrogen or an alkyl group, and A is a substituted, unsubstituted, linear, branched and/or cyclic alkylene, alkenylene, arylene or aralkylene radical having at least 4 carbons,in the presence of a cell. The process comprises a) contacting the cell with said carboxylic acid ester in an aqueous solution,wherein the cell is a recombinant cell which has reduced activity of a polypeptide comprising SEQ ID NO: 2 or a variant thereof over the wild-type cell.
摘要翻译:本发明提供使式(I)R1-A-COOR2(Ⅰ)的羧酸酯与式(Ⅰ)中R1为氢,-CH2OH,-CHO,-COOR3,-CH2SH,-CH2OR3或-CH2NH2,R2 在烷基存在下,R 3是氢或烷基,A是具有至少4个碳的取代的,未被取代的,直链的,支链的和/或环状的亚烷基,亚烯基,亚芳基或亚芳基。 该方法包括a)使细胞与所述羧酸酯在水溶液中接触,其中所述细胞是包含SEQ ID NO:2或其变体的多肽在野生型细胞上的活性降低的重组细胞。
摘要:
The subject of the invention is a biotechnological process for the production of ω-functionalized carboxylic acids and of ω-functionalized carboxylate esters from simple carbon sources.
摘要:
The invention relates to a method for oxidizing a fatty acid or an ester thereof of formula (I) H3C —(CH2)n-COOR, wherein R is selected from the group that comprises H, methyl, ethyl, propyl, and butyl, wherein n is 0 to 30, preferably 6 to 24, comprising the step of oxidizing the fatty acid or the ester thereof by contacting the fatty acid or the ester thereof with a cytochrome P450 monooxygenase of the CYP153 family in the presence of molecular oxygen and NAD(P)H and a whole-cell catalyst that expresses a recombinant cytochrome P450 monooxygenase of the CYP153 family, a recombinant alcohol dehydrogenase, a recombinant transaminase, and optionally one or more than one recombinant enzyme from the group comprising alanine dehydrogenase, ferredoxin, and ferredoxin reductase, and the use of said whole-cell catalyst to oxidize a fatty acid or an ester thereof.
摘要:
The invention provides a whole cell catalyst which expresses a recombinant α-dioxygenase or the combination of a recombinant fatty acid reductase and a phosphopantetheinyl transferase phosphopantetheinylating the fatty acid reductase, and which in addition to the α-dioxygenase and/or the combination of fatty acid reductase and phosphopantetheinyl transferase expresses a transaminase, characterized in that the phosphopantetheinyl transferase and/or transaminase is preferably recombinant; and a method for the conversion of a fatty acid, ω-hydroxy fatty acid, ω-oxo fatty acid or a monoester thereof to an amine, comprising oxidation of the fatty acid, ω-hydroxy fatty acid, ω-oxo fatty acid or the monoester thereof to an oxidation product by contacting with an alkane hydroxylase and/or alcohol dehydrogenase, contacting the oxidation product with a phosphopantetheinylated fatty acid reductase or a α-dioxygenase to give an aldehyde, and contacting the aldehyde with a transaminase.
摘要:
The invention relates to a method for oxidizing a fatty acid or an ester thereof of formula (I) H3C—(CH2)n-COOR, wherein R is selected from the group that comprises H, methyl, ethyl, propyl, and butyl, wherein n is 0 to 30, preferably 6 to 24, comprising the step of oxidizing the fatty acid or the ester thereof by contacting the fatty acid or the ester thereof with a cytochrome P450 monooxygenase of the CYP153 family in the presence of molecular oxygen and NAD(P)H and a whole-cell catalyst that expresses a recombinant cytochrome P450 monooxygenase of the CYP153 family, a recombinant alcohol dehydrogenase, a recombinant transaminase, and optionally one or more than one recombinant enzyme from the group comprising alanine dehydrogenase, ferredoxin, and ferredoxin reductase, and the use of said whole-cell catalyst to oxidize a fatty acid or an ester thereof.
摘要:
The invention provides a whole cell catalyst which expresses a recombinant α-dioxygenase or the combination of a recombinant fatty acid reductase and a phosphopantetheinyl transferase phosphopantetheinylating the fatty acid reductase, and which in addition to the α-dioxygenase and/or the combination of fatty acid reductase and phosphopantetheinyl transferase expresses a transaminase, characterized in that the phosphopantetheinyl transferase and/or transaminase is preferably recombinant; and a method for the conversion of a fatty acid, ω-hydroxy fatty acid, ω-oxo fatty acid or a monoester thereof to an amine, comprising oxidation of the fatty acid, ω-hydroxy fatty acid, ω-oxo fatty acid or the monoester thereof to an oxidation product by contacting with an alkane hydroxylase and/or alcohol dehydrogenase, contacting the oxidation product with a phosphopantetheinylated fatty acid reductase or a α-dioxygenase to give an aldehyde, and contacting the aldehyde with a transaminase.
摘要:
The invention provides a biocatalytic process for oxidation of organic compounds with the aid of an alkL gene product, and microorganisms used in this process.
摘要:
The present invention relates to a method for removing an organic compound from an aqueous solution, comprising the steps of providing the aqueous solution which contains the organic compound, and a hydrophobic organic solution, where the latter comprises a liquid hydrophobic cation exchanger, contacting the aqueous solution and the hydrophobic organic solution, and separating off the hydrophobic organic solution from the aqueous solution, wherein the liquid hydrophobic cation exchanger is a saturated alkanoic acid having at least one alkyl substituent, where the organic compound is an organic compound having at least one positive charge and a neutral or positive total charge.
摘要:
The present invention relates to a method for removing an organic compound from an aqueous solution, comprising the steps of providing the aqueous solution which contains the organic compound, and a hydrophobic organic solution, where the latter comprises a liquid hydrophobic cation exchanger, contacting the aqueous solution and the hydrophobic organic solution, and separating off the hydrophobic organic solution from the aqueous solution, wherein the liquid hydrophobic cation exchanger is a saturated alkanoic acid having at least one alkyl substituent, where the organic compound is an organic compound having at least one positive charge and a neutral or positive total charge.
摘要:
Subject matter of the invention is a biotechnological process for the production of organic compounds with the aid of at least one alkL gene product.