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Objectives To construct an Escherichia coli strain capable of producing riboflavin with high titer and yield. Results A low copy number plasmid pLS01 containing a riboflavin operon under the control of a constitutive promoter was constructed and introduced into Escherichia coli MG1655. Subsequently, the pfkA, edd and ead genes were disrupted, and the resulting strain LS02T produced 667 mg riboflavin/l...
To investigate whether parallel complementary RNA (pRNA) could induce gene-specific silencing in Pseudomonas aeruginosa, pRNA of the mexA gene was expressed in it. Compared to the control strains, the strain expressing pRNA of mexA showed a 50% decrease in minimum inhibitory concentrations (MICs) of several antimicrobial agents and a twofold increase in the initial accumulation rate of ethidium bromide,...
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