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Candida tropicalis cells and use thereof

Inactive Publication Date: 2011-05-19
EVONIK DEGUSSA GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]Advantages of the invention are the gentle conversion of the educt used to the ω-hydroxycarboxylic acids and corresponding esters and a high specificity of the method and an associated high yield based on the educt used.

Problems solved by technology

The cells and methods described so far are not suitable for the production of ω-hydroxycarboxylic acids or their esters, as the ω-hydroxycarboxylic acids are always only present as a short-lived intermediate and are immediately metabolized further.

Method used

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Embodiment Construction

[0009]It was found, surprisingly, that the cells described hereunder make a contribution to solution of this task.

[0010]The object of the present invention is therefore a cell as described in claim 1.

[0011]Another object of the invention is the use of the cell according to the invention and a method of production of ω-hydroxycarboxylic acids and ω-hydroxycarboxylic acid esters using the cells according to the invention.

[0012]Advantages of the invention are the gentle conversion of the educt used to the ω-hydroxycarboxylic acids and corresponding esters and a high specificity of the method and an associated high yield based on the educt used.

[0013]One object of the present invention is a Candida tropicalis cell, in particular one from the strain ATCC 20336, which is characterized in that the cell has, compared with its wild type, a reduced activity of at least one of the enzymes that are encoded by the intron-free nucleic acid sequences selected from the two group comprising

A) Seq ID...

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Abstract

The invention relates to genetically engineered Candida tropicalis cells, use thereof and a method of production of ω-hydroxycarboxylic acids and ω-hydroxycarboxylic acid esters.

Description

FIELD OF THE INVENTION[0001]The invention relates to genetically engineered Candida tropicalis cells, use thereof and a method of production of ω-hydroxycarboxylic acids and ω-hydroxycarboxylic acid esters.BACKGROUND OF THE INVENTION[0002]Owing to its ability to form dicarboxylic acids from alkanes, Candida tropicalis is a well-characterized ascomycete.[0003]WO91 / 006660 describes Candida tropicalis cells that are completely inhibited in β-oxidation through interruption of the POX4 and / or POX5 genes, and achieve increased yields of α,ω-dicarboxylic acids.[0004]WO00 / 020566 describes cytochrome P450 monooxygenases and NADPH cytochrome P450 oxidoreductases from Candida tropicalis and use thereof for influencing ω-hydroxylation, the first step in ω-oxidation.[0005]WO03 / 089610 describes enzymes from Candida tropicalis which catalyse the second step of ω-oxidation, the conversion of a fatty alcohol to an aldehyde, and use thereof for improved production of dicarboxylic acids.[0006]The cell...

Claims

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Application Information

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IPC IPC(8): C08G63/06C12N1/19C12P7/42C12P7/62C12N15/74
CPCC12N1/16C12N9/004C12N9/0042C12P13/04C12P7/625C12Y101/01001C12P7/42C07C51/347C07C67/42C07C227/06C07C227/08C12P7/62
Inventor POTTER, MARKUSHENNEMANN, HANS-GEORGSCHAFFER, STEFFENHAAS, THOMAS
Owner EVONIK DEGUSSA GMBH
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