Article
Combinatorial pathway analysis for improved L-tyrosine production in Escherichia coli: identification of enzymatic bottlenecks by systematic gene overexpression.
Metabolic engineering - 1 Mar 2008
Lütke-Eversloh Tina, Stephanopoulos Gregory
Abstract excerpt
Combinatorial overexpression of aromatic amino acid biosynthesis (AAAB) genes in the L-tyrosine producing Escherichia coli strains T1 and T2 was employed to search for AAAB reactions limiting L-tyrosine production. All AAAB genes except aroG and tyrA, which were substituted by their feedback resistant derivatives in the host strains, were cloned and overexpressed. A total of 72 different strains overexpressing...
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