METHODS AND MEANS FOR METABOLIC ENGINEERING AND IMPROVED PRODUCT FORMATION BY MICRO-ORGANISMS

摘要

The invention relates to the field of biochemistry, molecular biology and microbiology. More specific the invention relates to methods and means for metabolic engineering and improved product formation by a filamentous micro-organism or a low G+C gram-positive bacterium. The invention discloses that DasR and DasR binding sites play an important and universal role in the control of gene expression in micro-organisms Based on this finding, the invention provides multiple useful applications, such as a method for regulating the expression of a gene of interest, a method for controlling metabolism, a method for decreasing undesired expression and many more. Moreover, the invention also provides means that can be used to establish said methods: for example a micro-organism in which the DasR binding site in operable linkage with a particular gene has been modified to obtain increased or decreased expression of a protein (being a desired or undesired protein) encoded by said gene.