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“Transcriptomic analysis with DNA microarray revealed that expression of some glycolysis- and TCA cycle-related genes, which include those encoding the enzymes involved in conversion of glucose to 2-oxoglutaric acid, is upregulated after penicillin addition.”
“ipnA had significantly higher expression than did acvA. Glucose specifically reduced the production of penicillin and significantly repressed the expression of ipnA but not of acvA gene fusions.”
“ Glucose also repressed isopenicillin N synthase, which converts alpha-aminoadipyl-cysteinyl-valine into isopenicillin N, but did not affect penicillin acyltransferase, the last enzyme of the penicillin biosynthetic pathway.”