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J Biotechnol. 2006 Jun 25;124(1):74-92. Epub 2006 Jan 10.

Emerging Corynebacterium glutamicum systems biology.

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  • 1Institute of Biotechnology 1, Research Center Juelich, Germany.


Corynebacterium glutamicum is widely used for the biotechnological production of amino acids. Amino acid producing strains have been improved classically by mutagenesis and screening as well as in a rational manner using recombinant DNA technology. Metabolic flux analysis may be viewed as the first systems approach to C. glutamicum physiology since it combines isotope labeling data with metabolic network models of the biosynthetic and central metabolic pathways. However, only the complete genome sequence of C. glutamicum and post-genomics methods such as transcriptomics and proteomics have allowed characterizing metabolic and regulatory properties of this bacterium on a truly global level. Besides transcriptomics and proteomics, metabolomics and modeling approaches have now been established. Systems biology, which uses systematic genomic, proteomic and metabolomic technologies with the final aim of constructing comprehensive and predictive models of complex biological systems, is emerging for C. glutamicum. We will present current developments that advanced our insight into fundamental biology of C. glutamicum and that in the future will enable novel biotechnological applications for the improvement of amino acid production.

[PubMed - indexed for MEDLINE]
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