Comparison of confidently predicted OMPs. Comparative bioinformatic prediction of the 98 confidently predicted OMPs from the avian strain genome using three different groups of predictors (subcellular localization, transmembrane β-barrel protein and lipoprotein predictors). The predicted proteins in each group were determined as shown in Figure 1. The numbers represent shared or unique predicted proteins. The total number of proteins predicted by each of the three approaches is shown in parentheses.