초록

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Abstract ▼ AI-Helper

For the overproduction of L-phenylalanine using Escherichia coli, the authors constructed various recombinant plasmids including pMW 10, pMW 11 and pMW 12. The $aroF{FR}$ and $pheA^{FR}$ genes for the production of L-phenylalanine were isolated from Escherichia coli MWEC 101-5 ...

For the overproduction of L-phenylalanine using Escherichia coli, the authors constructed various recombinant plasmids including pMW 10, pMW 11 and pMW 12. The $aroF{FR}$ and $pheA^{FR}$ genes for the production of L-phenylalanine were isolated from Escherichia coli MWEC 101-5 strains. The productivity and atability of Escherichia coli regulatory mutants containing recombinant plasmids were investigated to evaluate the efficiency of the $aroF^{FR}$ and $pheA^{FR}$ genes. The MWEC 101-5/pMW 11 strain produced 24.3g/l of L-phenylalanine while its stability was 73.8 percent. The specific activity of prephenate dehydratase in the MWEC 101-5/pMW 11 strain increased by 26-fold compared with that of Escherichia coli K-12.

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