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. 2008 Jul 7;190(17):5814–5823. doi: 10.1128/JB.00227-08

FIG. 4.

FIG. 4.

Influence of FNR and TorR on TMAO reductase promoter activity. (A) β-Galactosidase activity for each putative TMAO reductase promoter-lacZ reporter in either wild-type cells (white bars) or JB1 cells (the fnr mutant) (gray bars) grown anaerobically in LBS medium. Asterisks indicate statistically significant decreases in activity in JB1 relative to those in the wild type as measured using Student's t test (PtorECA, P < 0.02; PdmsABC, P < 0.05). (B) β-Galactosidase activity for each putative TMAO reductase promoter-lacZ reporter in KV1585 (the torR mutant) grown anaerobically in LBS medium either without (gray bars) or with (gray bars with hatching) 40 mM TMAO and in the wild type grown in LBS medium either without (white bars) or with (white bars with hatching) 40 mM TMAO. The data for the wild type were taken from Table 2. For both panels, error bars represent the standard error of the mean. Experiments were conducted three times, with one representative experiment shown.