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Aspartate kinase (AK) is a key enzyme involved in catalyzing the first step of the aspartate-derived amino acid biosynthesis, including L-lysine and L-threonine, which is regulated by the end-metabolites through feedback inhibition. In order to accumulate the end-metabolites in the host, the feedback inhibition of AK has to be released. In this study, a(More)
BACKGROUND The microbial conversion of plant biomass into value added products is an attractive option to address the impacts of petroleum dependency. The Gram-negative bacterium Escherichia coli is commonly used as host for the industrial production of various chemical products with a variety of sugars as carbon sources. However, this strain neither(More)
BACKGROUND The Gram-negative bacterium Escherichia coli has been widely used as a cell factory for the production of proteins and specialty chemicals because it is the best characterized host with many available expression and regulation systems. However, recombinant proteins produced in Escherichia coli are generally intracellular and often found in the(More)
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