Biosynthesis of Osmoregulated Periplasmic Glucans in Escherichia coli: The Phosphoethanolamine Transferase Is Encoded by opgE

Figure 4

(a) Genetic organization of the opgE region. Chromosomal position of the opgE gene and Tn5 insertion of the opgE mutant isolated after the arbutin screen are indicated. (b) Predictive organization of the OpgE protein. Transmembrane segments are in grey, cytoplasmic regions are in blue, and periplasmic regions are in red and sulfatase domain within the last periplasmic region is shown. (c) Predictive model of the OpgE protein. First and last amino acids of the OpgE protein are indicated and first and last amino acids of each transmembrane (TM) segment are indicated.