Figure 2

Amino acid residues of Oac selected for mutagenesis. The topology model of Oac [3] has been used to show the location of the residues targeted for mutagenesis. Residues have been colour-coded based in their effects on Oac assembly and function as outlined in Table 2. Accordingly, non-critical residues are shown in light pink, residues affecting Oac assembly (increase) without affecting function are shown in blue, residues affecting Oac assembly (decrease) without affecting function are shown in dark pink, residues affecting Oac assembly (decrease) and function are shown in yellow, residues affecting either assembly (increase) and/or function are shown in green.