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ybaW transcription is repressed by FadR. (A) The effects of the two regulatory proteins FadR and FabR on ybaW expression. (B) Levels of expression of fabM in a fadR strain grown on various sole carbon sources are shown. Expression was monitored using the fabM-lacZ transcriptional fusion strain and β-galactosidase (β-Gal) assays, which were performed in triplicate. Levels of activity are shown in Miller units, and error bars show standard deviations. WT, wild type.
