FIG. 7.

Effects of the hfq mutation on protein expression by M. catarrhalis. Proteins present in WCL (A) and outer membrane vesicles (OMV) (B) from the wild-type strain O35E and the hfq mutant O35EΔhfq were resolved by SDS-PAGE and stained with Coomassie blue. The positions of some of the bands that were more abundant in the hfq mutant are indicated by the black arrows. Proteins contained in the four selected bands were subjected to N-terminal amino acid sequence analysis. Protein molecular mass position markers (in kilodaltons) are indicated on the left side of each panel.