Expression of Four Methionine Sulfoxide Reductases in Staphylococcus aureus
Figure 2
β-galactosidase activity levels in msr(A1/B)P-lacZ (a), msrA2P-lacZ (b), and msrA3P-lacZ (c) reporter strains during different stages of growth under standard growth conditions. Growth and β-galactosidase activity were measured at different time points spectrophotometrically. For precise OD600 determination, the late-stage cultures were diluted appropriately to bring cell density in measurable range of the spectrophotometer. OD600 is indicated by open circles, and β-galactosidase activity (OD420) is indicated by closed circles. Values indicate averages of data from three independent experiments ± standard deviation (SD).
