摘要:
The invention relates to a yeast strain and to a method for microbial production of pentacyclic triterpenes and/or triterpenoids in yeast. More particularly, the invention relates to a modified yeast strain for production of pentacyclic triterpenoids comprising at least one copy of a gene for encoding an oxidosqualene cyclase, at least one copy of a gene for encoding an NADPH-cytochrome P450 reductase and/or at least one copy of a gene for encoding a cytochrome P450 monooxygenase.
摘要:
The invention relates to an isolated genetically modified microorganism in which the gene IDH1 and at least one of the genes SDH2 and DIC1 are under the control of a first promoter that is repressed to a growth culture medium by means of a cultivation additive and is active in the absence of the cultivation additive. The genes that are part of the group comprising 'PYC1, ACS1, CIT1, ACO1, ICL1, MSL1, and CIT2, optionally also MDH3' are constitutively active. The invention further relates to uses of such a microorganism, especially for producing succinic acid.
摘要:
Described is a method of providing an organism belonging to the genus Saccharomyces, which is capable of producing polyunsaturated fatty acids (PUFAs) comprising the steps of subjecting such an organism, which does not produce PUFAs, to a mutagenesis step and selecting a Saccharomyces organism, which is capable of accumulating at least 15% of the cellular dry weight as lipids; and genetically modifying the Saccharomyces organism selected in step (a) so that it is capable of synthesizing PUFAs, in particular eicosapentaenoic acid and/or docosahexaenoic acid. Also described are organisms obtained by such a method, as well as a method for the synthesis of PUFAs, in particular eicosapentaenoic acid and/or docosahexaenoic acid comprising culturing such an organism.
摘要:
The present invention relates to a peptide of the following formula (I) X1(X2)-X3-X4 or a salt or solvate thereof, wherein is an amino acid comprising two or more NH-functionalities, and X2, X3, and X4 are, independently from one another, an amino acid residue, and wherein the salt or solvate is preferably a physiologically acceptable salt or solvate.
摘要:
The invention relates to an isolated, genetically modified microorganism, wherein compared to the wild type a) the idh1 and idp1 genes have been deleted or inactivated, and/or b) the sdh2 and sdh1 genes have been deleted or inactivated, and/or c) the PDC2 gene has been deleted or inactivated or is under the control of a promoter which can be suppressed or induced by exposure of the microorganism using an inductor substance, and/or d) one or more genes from the group consisting of ICL1, MLS1, ACS1 and MDH3 has been replaced or supplemented by a corresponding foreign gene or corresponding foreign genes from Crabtree-negative organisms, and to the uses thereof.