FIGURE 1.
In vitro functional characterization of PgpB. A, chemical structure of lipid phosphate substrates and inhibitors of PgpB. B, each reaction of 100 μl contains 2 μg of PgpB protein and 5 μg of each substrate (30 mm for glycerol 3-phosphate) mixed for 40 min at room temperature and then characterized by colorimetric phosphatase assay. The activity was normalized with an individual background control. C and D, Michaelis-Menten kinetic assays using 6:0 LPA or 18:1 LPA as substrates plotted using GraphPad PrismTM software. G-3-P, glycerol-3-phosphate.